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Welcome to Smurf Land.......Where you are whisked away to a smurfalicious place!
LA LA lalalala LA LA LA LA LAAAAAA....
Alright enough with the cuteness of all this.
Basically I have created a script that prompts you (the user) to answer some vital information them based on your answers the script will inject specific tweaks to your build.prop and also to a file in your init.d folder. These tweaks include battery tweaks, memory tweaks, speed tweaks, governor tweaks, 3g and wifi tweaks, SD card tweaks, and a bunch of random tweaks. Some collected from a bunch of different phones tweaks and others created by me.
The script will search out every line in your build.prop and remove any line that is there that I am adding and remove it first to reduce duplicate codes. It will remove a whole list of other init.d files that conflict with it. Will also create a few other files and folders to add functionality and speed optimization to your phone.
What if you do not like the tweaks that I added.....well the script creates back-ups for you and you can choose the option to Un-Smurf and it will set you back to before you installed.
CREDITS
zeppelinrox for his excellent scripts.
tommytomatoe for answering all my ridiculous questions and also the space in which to post my work
Lpy for his loopy smoothness
eoghan2t7 for his tutorial on loopy smoothness
knzo for his collection of tweaks
[email protected] for his collection of scripts which I pulled some tweaks from
metalspring for his explanation of a lot of tweaks and some build.prop and init.d tweaks
scottypeterson for his ultimatescript
cwc3 for his collection of scripts which I borrowed settings from
tazzz811 for his thread on some great init.d tweaks
droidphile for his incredible guides and some great governor tweaks and I/O scheduler tweaks
Each persons name has a link attached to it to show their work and threads which to thank them.
These Settings are all over the Internet across multiple forums and presented by more than a dozen people. If any setting in here was initially created by you and you did not get credit please PM me with your Info so I can add you to the credits. No work here has been stolen or taken on purpose. If you created or founded any of these setting and do not wish for me to use them then again please PM me and I will remove them as soon as possible. Please do not start a flame war on this thread due to my ignorance. I am just trying to get these settings out to as many people as possible to bring the smoothest experience to Our phones.
Instructions
1. Download Smurfed Out script.
2. Open up Script Manager found here if you don't have it
3. Scroll Down to the Smurfed_Out.sh file and click on it. This could Possible be in your downloads folder.
4. Click on the su key, the skull and crossbones, or run as root depending on which version of script manager you have then click run
5. Follow instructions on the screen.
!!! Warning !!!
By using this script you acknowledge that it could possible break your phone. In other words don't come running to me when you phone burst into flames and or it leaves you for someone as sexy as it has now become.
Download
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Smurfed Out V 6.6
Other Phones
Please feel free to post a thread in other forums or other site but please link back to here for the downloads. I am trying to give the user the best experience possible and if dl links are made all over the place then there is possibility for them to not get updated when I release a new version. Plus the info in the first three post here explains alot.
Developers
If you would like this baked into your ROM the PM me and I can help. I already have a ZIP file created with he exact files that you need and instructions with how to implement. I need to make a few corrections based on your specific Rom but it is an easy fix and would rather do it or help you do it so there arnt any conflicts at all. I have already helped a few other DEV's bake it into their Roms and it works great.
Thank Me
If You Find this post USEFULL and ENJOY using the SMURFED OUT Script then Please take the time out to THANK ME. I'm Not asking for Donations but this does take countless hours to put together. Also you can click the links in my sig to see my working in the google market(PLAY) follow me on my Twitter and Facebook sites
Info
I/O Scheduler descriptions
Different Governors
LMK Settings (Low Memory Killer)/ADJ & MINFREE Values
ICS USERS
IF running ICS then go here to auto patch your SERVICE.JAR for new OOM settings.
FYI your services.jar can be found /system/frameworks/services.jar.
Seriously
If your coming from a version before 4.0 I Highly recommend Un-Smurfing First
Highly Recommended
If you want to make sure the settings stick....go into your /system/etc/init.d folder with script manager and set the 45smurfed file to run as root and run at boot. Some say this makes the setting stick others see no effect.
MUST READ
If your launcher does not show up in the auto detector then please inform me of the package name (found in /data/data) usually looks like this blah.blah.launcher. I will add it to the database and update the script rather quickly.
Change log
V 6.6
Added Instant Smurf-Power option which will clear out caches and give your phone an oh so fresh feeling (kinda like restarting your phone without having to)
Added in half a dozen build.prop tweaks
Fixed Some issues with the 45smurfed file
Added in ability to choose how much you want your Dalvik heapsize to be
Rearranged the Loopy Smoothness Tweak
Added in EXT4 Tweaks (convert your sd card over to ext4 and answer the question in the script for it to go into effect)
Added in swap support
Added in some new checks
Added in some permission sets so settings dont get overwritten
I'm sure there are more but can't think of any
Highly recommended that you UN-SMURF before you run the newest version as some of the files that the script removed in last version are needed in this version.
V 6.5.1
Fixed name of Launcher not being correct
Fixed wifi and 3g not switching, addition of last minute build.prop tweak jacked it all up
V 6.5
Fixed some syntax errors
Corrected names of a few launchers
Added in redundancies to back up everything the script removes so when unsmurfing there is no residual effects and everything is returned to Pre-Smurfed conditions
Everything is now backed up to a folder created on your SD card now instead of spread all over. File is called SmurfedBackups
Tried to fix Launcher Detector not reading some Launchers but cant get pm list packages to sent list to a file with out getting a segmentation error...any suggestions would be helpful
If your launcher is not found and you know the name of it try it out cause its saved in the detector as a launcher just isn't being autodetected
On AOKP and roms based off of it some of the init.d tweaks you find in rom control startup tweaks will not work anymore as i removed them becuase my script does it for you now. They will be restored if you Un-Smurf
Updated HTML doc with latest build.prop edits
Changed a few settings in build.prop
V 6.4
Fixed launchers not being found
Reorganized code
Added the google dns servers to the resolv.conf file
Added in check for HWA and if there it removes cpu rendering to speed up os
Fixed some syntax errors in init.d file
Added in a few new build.prop tweaks
Added in regroupings of OOM Settings into the build.prop
V 6.3
Added Miui Launcher
Added Lightning Launcher
Changed the way the I/O Schedule List shows up
Changed the defraging database process. Should be a lot cleaner now.
Added a few extra build.prop tweaks. If you look at them the values are
supposed to be blank.
V 6.2
Fixed problem with Cron files not copying over correctly
V 6.1
Fix syntax error
V 6.0
Added checks to make sure no typing error occur
Added info on which settings you are using to menu
Added more options to the menu that allows you to
Change your Launcher
Change your LMK Settings
Change your I/O Scheduler
Changed LMK settings names (Spaceballs Reference now)
Added adj actual numbers to LMK settings so user knows the values
Added CRON to wipe different cache every hour ever day and every week
Script now Auto finds your Launcher(s) and has you select from a list (If
yours doesn't show up tell me in this thread and I will add it. I already have over 60 different launchers presearched)
Fixed init.d file (some variables wernt getting sent correctly
Removed some build.prop edits as to fix 3g and wifi issues
I think that's it. But im sure I missed something
V 5.0
Changed delivery of the init.d file
Changed the numbering of the init.d file
Took away 3g/wifi tweaks that were interfering with wifi connecting and toggles not working
Added in checks to remove some conflicting init.d scripts
Added in checks for Selection of aggressivness of OOM (adj & minfree) settings
Added in an option of what I/O scheduler you want to run
Added in a few other build.prop tweaks
Cleaned up some code
V 4.7
Added OOM levels
Added Min free values
Added Min KB values
Added option to choose from AOSP or SENSE
Added Option to Choose from ICS or Gingerbread
Lowered the Wifi option to normal levels for connection issues
V 4.6
Changed ro.ril.enable.a52=1
Changedro.ril.enable.a53=1
Changed net.tcp.buffersize.default=6144,87380,1048576,6144,87380,524288
Changed net.tcp.buffersize.wifi=524288,1048576,2097152,524288,1048576,2097152
Changed net.tcp.buffersize.umts=6144,87380,1048576,6144,87380,524288
Changed net.tcp.buffersize.gprs=6144,87380,1048576,6144,87380,524288
Changed net.tcp.buffersize.edge=6144,87380,524288,6144,16384,262144
Changed net.tcp.buffersize.hspa=6144,87380,524288,6144,16384,262144
Changed net.tcp.buffersize.lte=524288,1048576,2097152,524288,1048576,2097152
Changed net.tcp.buffersize.hsdpa=6144,87380,1048576,6144,87380,1048576
Changed net.tcp.buffersize.evdo_b=6144,87380,1048576,6144,87380,1048576
Added ro.media.enc.hprof.vid.fps=65
Govenor Tweaks for Interactive, Ondemand, OndemandX, SmartassV2, Lulzactive, and Conservative
Changed kernel.msgmni=64000
Cleaned up Code even more
V 4.5
Added a few more tweaks to the 01Smurfed file
Added a few more build.prop tweaks
Hopefully fixed the wifi->3g->wifi issue
Cleaned up the code a little
V 4.1
Changed picture and video settings...camcorder works now
Increased and decreased a few values
Added a huge amount to the init.d file
Removed the minfree values from the init.d (if you want them back I can release one for Gingerbread and one for ICS)
V 4.0
Removed some tweaks that were causing issues
Added in some new tweaks
Changed a few Settings for better response
Script now checks to see if your using a local.prop and if so copies settings to it as well
Now script creates a file in you init.d folder called 01smurfed. This has many new tweaks that will run on every boot
Comments put into script to explain what exactly is going on
Credits given in OP
V 3.3
Removed some setting that were either not necessary or we causing issues for some
Added in some new tweaks I figured out
Fixed 3g not connecting right after turning off WiFi
Fixed WiFi not connecting sometimes
Script now wipes dalvik-cache and requires a restart. Restart will take a little longer due to rebuild of dalvik
I HIGHLY recommend UN-SMURFING before you apply the newest script. I have noticed huge improvements from this last update
V 3.2
Added a few more tweaks
Fixed a typo
Made sure system was remounted as read/write before settings took place
V 3.1
Removed super user check. (Giving errors to some)
Fixed my bad spelling (lol)
V 3.0
Added 10 new edits
Cleaned up code
Made sure temp files were being deleted correctly
Change a number of setting for better tweaking
V 2.0
Huge code change. Now with options.
Now scans and removes duplicate lines
V 1.0
Initial release
Over 30 build.prop edits with more to come.
For a detailed list of settings that this script copies to your Build.prop go to /sdcard/SmurfedBackups/Smurfed_Out.html
!!! WARNING !!!
This Script now interferes with alot of other scripts. I'd recommend unsupercharging and removing some other scripts as well...Tweaks, Read Ahead SD card tweaks, Governor Tweaks, and I'm sure there are a few others. This script searches for some of the scripts mentioned and removers them if found.
Un-SMURF
During the Smurfing process a copy of all removed files is sent the the SmurfedBackups folder on your SD card. When un-smurfing your phone will be restored back to the exact way before Smurfing.
Future Releases
1. Adds in as many battery saving, speed, and responsiveness tweaks as I can find throught out many different forums.
2. removes any other script that is previously installed that may be using same tweaks....if not removing the script itself it will search out each line of each script and remove the lines individually.
FEEDBACK & BUG REPORTS
Please leave feedback after you run so others know how well this script works. I will try my best to help with any bugs that are found. If found please report in this thread with the following info
What Rom are you running?
What Phone are you using?
What settings did you choose in Smurfed Out script?
What Governor are you running?
What kernel are you using?
What things did you try before reporting?
What issues are you running into?
What is your Name and Social Security number? (lol)
What is your Blood Type? (LMAO)
Have you ever thought about donating an organ? (LMFAO)
Syntax Errors or Suggestions
If reporting syntax errors or suggestions to improve the script then please put them into code brackets so I can easily read them and also line number if you happen to remember helps as the script is over 2500 lines now. I appreciate all help with these errors and suggestions to improve the script.
Troubleshooting
My WiFi or 3G doesn't work or wont switch?
Go into recovery and wipe dalvik-cache and cache and reboot.
Check to see if data is enabled in your settings.
Check to make sure if your using a battery saver app like battery xl or juice defender that is not turning off your radios
My camcorder isn't working?
Make sure your using the most recent script. The fix was made available on V 4.1
Does this script work for other phones?
Yes in theory it does. Let me know if it works or not and I'll put it in the OP so others know
I can't get this script to run in script manager?
Make sure you are opening the script with superuser rights within script manager
Can I run this in terminal emulator?
yes type this is command line. also make sure that Smurfed Out is on root of your sd card
Code:
su
sh /sdcard/Smurfed_Out.sh
After running the script and rebooting Im getting a blank black screen?
First scroll down and read just in case and follow those instructions then follow Bug Reporting procedures
My phone got up and ran away from me?
Well this can be a problem....On one hand that would mean that this script really works...on the other hand it means your just not cool enough for you phone anymore and it found someone better.
Just In Case
Build.prop.zip attached is a flashable zip in case of emergency. It has the build.prop of aokp rom in it. If your not running that rom...download the zip. open it up. go into the system folder. Replace the build.prop with the build.prop from the Rom.zip that you are running. Put on your sd card. Flash in recovery. I am putting this here cause in the past there were issues with the script causing a freeze after boot and some people had to nand back or reflash their rom. This will fix that. Enjoy.
[SCRIPT] Smurfed Out V 5.0 (ultimate build.prop/init.d tweaks) Updated 3-18
I/O Scheduler Descriptions
Taken from this post here
Q. "What purposes does an i/o scheduler serve?"
A.
Minimize hard disk seek latency.
Prioritize I/O requests from processes.
Allocate disk bandwidth for running processes.
Guarantee that certain requests will be served before a deadline.
So in the simplest of simplest form: Kernel controls the disk access using I/O Scheduler.
Q. "What goals every I/O scheduler tries to balance?"
A.
Fairness (let every process have its share of the access to disk)
Performance (try to serve requests close to current disk head position first, because seeking there is fastest)
Real-time (guarantee that a request is serviced in a given time)
Q. "Description, advantages, disadvantages of each I/O Scheduler?"
A.
1) Noop
Inserts all the incoming I/O requests to a First In First Out queue and implements request merging. Best used with storage devices that does not depend on mechanical movement to access data (yes, like our flash drives). Advantage here is that flash drives does not require reordering of multiple I/O requests unlike in normal hard drives.
Advantages:
Serves I/O requests with least number of cpu cycles. (Battery friendly?)
Best for flash drives since there is no seeking penalty.
Good throughput on db systems.
Disadvantages:
Reduction in number of cpu cycles used is proportional to drop in performance.
2) Deadline
Goal is to minimize I/O latency or starvation of a request. The same is achieved by round robin policy to be fair among multiple I/O requests. Five queues are aggressively used to reorder incoming requests.
Advantages:
Nearly a real time scheduler.
Excels in reducing latency of any given single I/O.
Best scheduler for database access and queries.
Bandwidth requirement of a process - what percentage of CPU it needs, is easily calculated.
Like noop, a good scheduler for solid state/flash drives.
Disadvantages:
When system is overloaded, set of processes that may miss deadline is largely unpredictable.
3) CFQ
Completely Fair Queuing scheduler maintains a scalable per-process I/O queue and attempts to distribute the available I/O bandwidth equally among all I/O requests. Each per-process queue contains synchronous requests from processes. Time slice allocated for each queue depends on the priority of the 'parent' process. V2 of CFQ has some fixes which solves process' i/o starvation and some small backward seeks in the hope of improving responsiveness.
Advantages:
Considered to deliver a balanced i/o performance.
Easiest to tune.
Excels on multiprocessor systems.
Best database system performance after deadline.
Disadvantages:
Some users report media scanning takes longest to complete using CFQ. This could be because of the property that since the bandwidth is equally distributed to all i/o operations during boot-up, media scanning is not given any special priority.
Jitter (worst-case-delay) exhibited can sometimes be high, because of the number of tasks competing for the disk.
4) BFQ
Instead of time slices allocation by CFQ, BFQ assigns budgets. Disk is granted to an active process until it's budget (number of sectors) expires. BFQ assigns high budgets to non-read tasks. Budget assigned to a process varies over time as a function of it's behavior.
Advantages:
Believed to be very good for usb data transfer rate.
Believed to be the best scheduler for HD video recording and video streaming. (because of less jitter as compared to CFQ and others)
Considered an accurate i/o scheduler.
Achieves about 30% more throughput than CFQ on most workloads.
Disadvantages:
Not the best scheduler for benchmarking.
Higher budget assigned to a process can affect interactivity and increased latency.
5) SIO
Simple I/O scheduler aims to keep minimum overhead to achieve low latency to serve I/O requests. No priority quesues concepts, but only basic merging. Sio is a mix between noop & deadline. No reordering or sorting of requests.
Advantages:
Simple, so reliable.
Minimized starvation of requests.
Disadvantages:
Slow random-read speeds on flash drives, compared to other schedulers.
Sequential-read speeds on flash drives also not so good.
6) V(R)
Unlike other schedulers, synchronous and asynchronous requests are not treated separately, instead a deadline is imposed for fairness. The next request to be served is based on it's distance from last request.
Advantages:
May be best for benchmarking because at the peak of it's 'form' VR performs best.
Disadvantages:
Performance fluctuation results in below-average performance at times.
Least reliable/most unstable.
7) Anticipatory
Based on two facts
i) Disk seeks are really slow.
ii) Write operations can happen whenever, but there is always some process waiting for read operation.
So anticipatory prioritize read operations over write. It anticipates synchronous read operations.
Advantages:
Read requests from processes are never starved.
As good as noop for read-performance on flash drives.
Disadvantages:
'Guess works' might not be always reliable.
Reduced write-performance on high performance disks.
Q. "Best I/O Scheduler?"
A.There is nothing called "best" i/o scheduler. Depending on your usage environment and tasks/apps been run, use different schedulers. That's the best i can suggest.
However, considering the overall performance, battery, reliability and low latency, it is believed that
SIO > Noop > Deadline > VR > BFQ > CFQ, given all schedulers are tweaked and the storage used is a flash device
Explanation of Different Governors
Pulled from this page here
1) Ondemand:
Default governor in almost all stock kernels. One main goal of the ondemand governor is to switch to max frequency as soon as there is a CPU activity detected to ensure the responsiveness of the system. (You can change this behavior using smooth scaling parameters, refer Siyah tweaks at the end of 3rd post.) Effectively, it uses the CPU busy time as the answer to "how critical is performance right now" question. So Ondemand jumps to maximum frequency when CPU is busy and decreases the frequency gradually when CPU is less loaded/apporaching idle. Even though many of us consider this a reliable governor, it falls short on battery saving and performance on default settings. One potential reason for ondemand governor being not very power efficient is that the governor decide the next target frequency by instant requirement during sampling interval. The instant requirement can response quickly to workload change, but it does not usually reflect workload real CPU usage requirement in a small longer time and it possibly causes frequently change between highest and lowest frequency.
2) Ondemandx:
Basically an ondemand with suspend/wake profiles. This governor is supposed to be a battery friendly ondemand. When screen is off, max frequency is capped at 500 mhz. Even though ondemand is the default governor in many kernel and is considered safe/stable, the support for ondemand/ondemandX depends on CPU capability to do fast frequency switching which are very low latency frequency transitions. I have read somewhere that the performance of ondemand/ondemandx were significantly varying for different i/o schedulers. This is not true for most of the other governors. I personally feel ondemand/ondemandx goes best with SIO I/O scheduler.
3) Conservative:
A slower Ondemand which scales up slowly to save battery. The conservative governor is based on the ondemand governor. It functions like the Ondemand governor by dynamically adjusting frequencies based on processor utilization. However, the conservative governor increases and decreases CPU speed more gradually. Simply put, this governor increases the frequency step by step on CPU load and jumps to lowest frequency on CPU idle. Conservative governor aims to dynamically adjust the CPU frequency to current utilization, without jumping to max frequency. The sampling_down_factor value acts as a negative multiplier of sampling_rate to reduce the frequency that the scheduler samples the CPU utilization. For example, if sampling_rate equal to 20,000 and sampling_down_factor is 2, the governor samples the CPU utilization every 40,000 microseconds.
4) Interactive:
Can be considered a faster ondemand. So more snappier, less battery. Interactive is designed for latency-sensitive, interactive workloads. Instead of sampling at every interval like ondemand, it determines how to scale up when CPU comes out of idle. The governor has the following advantages: 1) More consistent ramping, because existing governors do their CPU load sampling in a workqueue context, but interactive governor does this in a timer context, which gives more consistent CPU load sampling. 2) Higher priority for CPU frequency increase, thus giving the remaining tasks the CPU performance benefit, unlike existing governors which schedule ramp-up work to occur after your performance starved tasks have completed. Interactive It's an intelligent Ondemand because of stability optimizations. Why??
Sampling the CPU load every X ms (like Ondemand) can lead to under-powering the CPU for X ms, leading to dropped frames, stuttering UI, etc. Instead of sampling the CPU at a specified rate, the interactive governor will check whether to scale the CPU frequency up soon after coming out of idle. When the CPU comes out of idle, a timer is configured to fire within 1-2 ticks. If the CPU is very busy between exiting idle and when the timer fires, then we assume the CPU is underpowered and ramp to max frequency.
5) Interactivex:
This is an Interactive governor with a wake profile. More battery friendly than interactive.
6) Lulzactive:
This new find from Tegrak is based on Interactive & Smartass governors and is one of the favorites.
Old Version: When workload is greater than or equal to 60%, the governor scales up CPU to next higher step. When workload is less than 60%, governor scales down CPU to next lower step. When screen is off, frequency is locked to global scaling minimum frequency.
New Version: Three more user configurable parameters: inc_cpu_load, pump_up_step, pump_down_step. Unlike older version, this one gives more control for the user. We can set the threshold at which governor decides to scale up/down. We can also set number of frequency steps to be skipped while polling up and down.
When workload greater than or equal to inc_cpu_load, governor scales CPU pump_up_step steps up. When workload is less than inc_cpu_load, governor scales CPU down pump_down_step steps down.
Example:
Consider
inc_cpu_load=70
pump_up_step=2
pump_down_step=1
If current frequency=200, Every up_sampling_time Us if cpu load >= 70%, cpu is scaled up 2 steps - to 800.
If current frequency =1200, Every down_sampling_time Us if cpu load < 70%, cpu is scaled down 1 step - to 1000.
7) Smartass:
Result of Erasmux rewriting the complete code of interactive governor. Main goal is to optimize battery life without comprising performance. Still, not as battery friendly as smartassV2 since screen-on minimum frequency is greater than frequencies used during screen-off. Smartass would jump up to highest frequency too often as well.
8) SmartassV2:
Version 2 of the original smartass governor from Erasmux. Another favorite for many a people. The governor aim for an "ideal frequency", and ramp up more aggressively towards this freq and less aggressive after. It uses different ideal frequencies for screen on and screen off, namely awake_ideal_freq and sleep_ideal_freq. This governor scales down CPU very fast (to hit sleep_ideal_freq soon) while screen is off and scales up rapidly to awake_ideal_freq (500 mhz for GS2 by default) when screen is on. There's no upper limit for frequency while screen is off (unlike Smartass). So the entire frequency range is available for the governor to use during screen-on and screen-off state. The motto of this governor is a balance between performance and battery.
9) Intellidemand:
Intellidemand aka Intelligent Ondemand from Faux is yet another governor that's based on ondemand. Unlike what some users believe, this governor is not the replacement for OC Daemon (Having different governors for sleep and awake). The original intellidemand behaves differently according to GPU usage. When GPU is really busy (gaming, maps, benchmarking, etc) intellidemand behaves like ondemand. When GPU is 'idling' (or moderately busy), intellidemand limits max frequency to a step depending on frequencies available in your device/kernel for saving battery. This is called browsing mode. We can see some 'traces' of interactive governor here. Frequency scale-up decision is made based on idling time of CPU. Lower idling time (<20%) causes CPU to scale-up from current frequency. Frequency scale-down happens at steps=5% of max frequency. (This parameter is tunable only in conservative, among the popular governors )
To sum up, this is an intelligent ondemand that enters browsing mode to limit max frequency when GPU is idling, and (exits browsing mode) behaves like ondemand when GPU is busy; to deliver performance for gaming and such. Intellidemand does not jump to highest frequency when screen is off.
10) Lazy:
This governor from Ezekeel is basically an ondemand with an additional parameter min_time_state to specify the minimum time CPU stays on a frequency before scaling up/down. The Idea here is to eliminate any instabilities caused by fast frequency switching by ondemand. Lazy governor polls more often than ondemand, but changes frequency only after completing min_time_state on a step overriding sampling interval. Lazy also has a screenoff_maxfreq parameter which when enabled will cause the governor to always select the maximum frequency while the screen is off.
11) Lagfree:
Lagfree is similar to ondemand. Main difference is it's optimization to become more battery friendly. Frequency is gracefully decreased and increased, unlike ondemand which jumps to 100% too often. Lagfree does not skip any frequency step while scaling up or down. Remember that if there's a requirement for sudden burst of power, lagfree can not satisfy that since it has to raise cpu through each higher frequency step from current. Some users report that video playback using lagfree stutters a little.
12) Lionheart:
Lionheart is a conservative-based governor which is based on samsung's update3 source. Tweaks comes from 1) Knzo 2) Morfic. The original idea comes from Netarchy. See here. The tunables (such as the thresholds and sampling rate) were changed so the governor behaves more like the performance one, at the cost of battery as the scaling is very aggressive.
To 'experience' Lionheart using conservative, try these tweaks:
sampling_rate:10000 or 20000 or 50000, whichever you feel is safer. (transition latency of the CPU is something below 10ms/10,000uS hence using 10,000 might not be safe).
up_threshold:60
down_threshold:30
freq_step:5
Lionheart goes well with deadline i/o scheduler. When it comes to smoothness (not considering battery drain), a tuned conservative delivers more as compared to a tuned ondemand.
13) LionheartX
LionheartX is based on Lionheart but has a few changes on the tunables and features a suspend profile based on Smartass governor.
14) Brazilianwax:
Similar to smartassV2. More aggressive ramping, so more performance, less battery.
15) SavagedZen:
Another smartassV2 based governor. Achieves good balance between performance & battery as compared to brazilianwax.
16) Userspace:
Instead of automatically determining frequencies, lets user set frequencies.
17) Powersave:
Locks max frequency to min frequency. Can not be used as a screen-on or even screen-off (if scaling min frequency is too low).
18) Performance:
Sets min frequency as max frequency. Use this while benchmarking!
So, Governors can be categorized into 3/4 on a high level:
1.a) Ondemand Based:
Works on "ramp-up on high load" principle. CPU busy-time is taken into consideration for scaling decisions. Members: Ondemand, OndemandX, Intellidemand, Lazy, Lagfree.
1.b) Conservative Based:
Members: Conservative, Lionheart, LionheartX
2) Interactive Based:
Works on "make scaling decision when CPU comes out of idle-loop" principle. Members: Interactive, InteractiveX, Lulzactive, Smartass, SmartassV2, Brazilianwax, SavagedZen.
3) Weird Category:
Members: Userspace, Powersave, Performance.
[SCRIPT] Smurfed Out V 5.0 (ultimate build.prop/init.d tweaks) Updated 3-18
Explanation of LMK Settings (Low Memory Killer)
and
Explanation of Adj and Minfree settings
When your phone boots up, a file inside the boot image (init.rc) sets the system parameters. Things like the path to framework files, setting up your networks, and setting the limits at which programs are killed off to free RAM are done by this file. Now a super-Android-geek might dig inside the init.rc file and completely customize the low memory killer, but you don't have to do this to still get good results. The init.rc sets up six different "levels" of open applications. Let's have a look at them:
FOREGROUND_APP: This is the application currently on the screen, and running
VISIBLE_APP: This is an application that is open, and running in the background because it's still doing something
SECONDARY_SERVER: This is a process (a service that an application needs) that is alive and ready in case it's needed to do something
HIDDEN_APP: This again is a process, that sits idle (but still alive) in case it's needed by an app that's alive and running
For the most part, we never want to adjust when these apps and processes are killed off. They are the things that the programs we use need to properly function. For the more bold and advanced users, changing settings for HIDDEN_APP settings is possible, albeit with a LOT of trial and error. There's two more settings, and these are the ones most interesting to us today:
CONTENT_PROVIDER: This is apps that provide data (content) to the system. HTC Facebook Sync? That's a CONTENT_PROVIDER. So are things like the Android Market, or Fring. If they are alive, they can refresh and provide the content they are supposed to at the set interval. If you kill them, they can't of course.
EMPTY_APP: I call these "ghosts." They are apps that you have opened, but are done with them. Android uses a unique style of handling memory management. When an activity is ended, instead of killing it off Android keeps the application in memory so that opening them again is a faster process. Theses "ghost" apps use no battery or CPU time, they just fill RAM that would be otherwise empty. When this memory is needed by a different application or process, the RAM is flushed and made available for the new app. To satisfy the geekier people (like myself) Android does this by keeping a list of recently used apps, with the oldest apps in the list given the lowest priority -- they are killed first if RAM is needed elsewhere. This is a perfect way to handle 'ghost' processes, so there's no need to touch this part
So when you see settings like this 8,14,40,50,60, 75 you start with the first setting and it looks like this
FOREGROUND_APP = 8
VISIBLE_APP = 14
SECONDARY_SERVER = 40
HIDDEN_APP = 50
CONTENT_PROVIDER = 60
EMPTY_APP = 75
You can manipulate these numbers so that they are better managed and give You different aggressiveness and a faster UI
For the Smurfed Out script the settings are as follows
Lite = 8,14,55,70,85,100
Medium = 8,14,75,90,95,125
Max = 25,35,55,70,150,250
Extreme = 25,35,75,90,150,250
Minfrees are set as well but they are equal to the LowMemoryKiller ADJ settings.
I personally run them at Max while using ICS but everyone's experiences will be different.
Nice idea.....good job.
Sent from my PC36100 using XDA App
Looking forward to trying this!
Sent from my PC36100 using xda premium
Interesting
Sent from my PC36100 using XDA App
gonna try this now .
Um, where is the file?
Roman G said:
Um, where is the file?
Click to expand...
Click to collapse
Click on the link that says smurfed out basic
Trying new things never gets old... Let's take her for a spin and see what happens, Thanks Bro!
moreno4xl said:
Trying new things never gets old... Let's take her for a spin and see what happens, Thanks Bro!
Click to expand...
Click to collapse
Feedback is always welcome. As this is the first release I have many other changer that will be taking place in the future on this script nut wanted to release something I had working for now
Papa Smurf151 said:
Click on the link that says smurfed out basic
Click to expand...
Click to collapse
Thanks.
Typing with it now, will report back tomorrow.
I will say I do notice an instant difference, linpack say so as well.
Roman
When I click the link it just opens the file. How do I save it, so I can run it.
nickmus said:
When I click the link it just opens the file. How do I save it, so I can run it.
Click to expand...
Click to collapse
Same with me, I just opened the thread in the browser and saved file by pressing n holding. Renamed it "smurfedoutbasic.sh" and ran it in scripts manager.
Sent from my PC36100 using xda premium
Ya just long press and save. Don't need to rename. Then open it where ever downloads are saved.
Roman
So far I like being Smurfed
Mmmh... Ice Cream Sandwich
Got it using the web browser.
Thanks
Roman G said:
Ya just long press and save. Don't need to rename. Then open it where ever downloads are saved.
Roman
Click to expand...
Click to collapse
What he said lol i had to rename it cause for me it saved as a .bin file
Sent from my PC36100 using xda premium
Sweet. Been seeing the teaser in AOKP thread. Gonna give this a shot and see how it sits in after a day or so.
Sent from my PC36100 using xda premium
I've turned blue and I'm singing
Hello my fellow Android enthusiasts,
There are many apps that can be used to tweak kernel settings. However, I am a reductionist at heart and prefer to break things down to their essential parts. This guide was written for those who want to be rid of apps that dig into their kernel at every boot. It is a simple guide to writing init.d scripts that the average user should be able to implement.
Happy Tweaking,
Lucius
PS......ITS A CELEBRATION, *****ES!!!!!!!:victory:
Basics:
The android boot sequence is divided into 3 parts.
1) First stage bootloader
2) Kernel loads and prepares hardware
3) User space programs load - this is where init.d scripts are invoked
Init.d scripts execute commands as if they were entered into a terminal. These commands modify the value of parameters that influence our devices behaviour. They are much more flexible than tweaking apps and give end users the ability to tweak and optimize their device as they see fit. They are small, fast, clean... and awesome.
Requirements:
See my guide to modding and optimization for instructions on how to unlock, install TWRP, root, and install custom ROMs/kernels - http://forum.xda-developers.com/showthread.php?t=2232715
Unlocked: Needed to install custom recovery.
Custom Recovery: Needed to install custom ROMs and custom kernels.
Root Permissions: Needed to access /system partition - enabled when most custom ROMs are installed
Init.d Support: Needed to run init.d scripts at boot - enabled in every custom ROM/kernel I have come across.
Scripting Tool: Text editor or script manager - I use Android Tuner to create/test a script and AntTek File Explorer Ex's built in text editor to edit a script.
Root File Manager: I use AntTek Explorer Ex, it reminds me of my old linux setup, its very functional but clean as hell. Also has a built-in text editor.
Step #1: Acquire a Scripting Tool
I use Android Tuner for script creating/testing. You could also use a text editor. AntTek Explorer Ex has a built in text editor that works well. You could also use Notepad++, its a free linux based text editor. Just avoid windows-based editors, they leave extra spaces and invisible characters when enter is pressed.
Step #2: Begin Your Script
To create a script open your text editor or select "create new script" within the "script manager" in Android Tuner. Put your cursor at the very top left corner to begin writing. The first line of a script must invoke a compatible shell that will execute the script, which in our case is the following:
#!/system/bin/sh
Once this line is typed simply hit enter to start a new line. I usually put an empty line after the first line as it makes things easier to see. Extra lines for spacing purposes are fine so long as they are completely empty.
NOTE - Android tuner automatically appends the above line to the beginning of all scripts. It will not be displayed in the script creator but can be found in the final script you save.
TIP - Do not add spaces at the end of a line. Syntax must be exact.
TIP - Adding a "#" to the front of the line instructs the shell to avoid this line, which is essential for writing notes and keeping scripts organized.
Step #3: Write Your Tweaks
Now we can start writing tweaks. If written correctly each line that you enter will execute a command that changes a kernel or system level parameter. This seems daunting at first but it is really quite easy. Once you are finished typing a line simply hit enter to begin the next line. Here is an example of an executable command so you know what we are talking about going forward.
echo "SmartAssv2" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
NOTE - For some examples of useful tweaks see my guide to tweaking and optimization - http://forum.xda-developers.com/showthread.php?t=2232715
GENERAL FORMAT:
The tweaks that we are interested in typically begin by identifying the value to be written to the desired parameter:
echo "parameter value" >
The new parameter value is always followed by the directory tree locating the parameter of interest:
/sys/devices/system/cpu/cpu0/cpufreq/parameter file
In order to create:
echo "700" > /sys/devices/system/cpu/cpu0/cpufreq/gpu_oc
CPU/GPU TWEAKS:
To familiarize yourself with how tweaking is done I would start by opening up the following directory in your file manager:
/sys/devices/system/cpu/cpu0/cpufreq/
This is where cpu parameters, and often gpu parameters, are located. These files/parameters determine how our kernel controls our CPU. To modify our CPU's behaviour these parameters are modified at boot utilizing init.d scripts. Familiarize yourself with these files, open them up with a text editor - it's entirely safe so long as you don't start changing values. If the name of a parameter isn't self-explanatory, opening it up and examining the value it holds will typically explain its purpose. Here are some common parameters that are useful to know.
scaling_available_freq - lists the frequencies available to the cpu
scaling_available_governors - lists the cpu governors available for use
scaling_governor - sets the cpu governor
scaling_max_freq - sets the max freq
scaling_min_freq - sets the min freq
UV_mV_table - sets the voltage table for the cpu
GOVERNOR TWEAKS:
The CPU governor determines how our CPU behaves in response to changes in workload. Changing the governor will impact how our CPU scales through the freq steps available to our CPU. This has a significant impact on the time our CPU spends at different frequency steps, which influences efficiency, performance, battery life, and stability. For more info about the various governors available in android see post #1 at the following link - http://forum.xda-developers.com/showthread.php?t=1369817
Tweakable governor parameters are located in:
sys/devices/system/cpu/cpufreq/
Various interactive governor parameters can be accessed, such as:
go_hispeed_load - Go to hispeed_freq when cpu load at or above this value
hispeed_freq - freq to bump to once go_hispeed_load is passed
min_sample_time - minimum amount of time that can be spent at a frequency before scaling down
timer_rate - the interactive governor checks cpu load at regular intervals to determine whether frequencies should be increased when it comes out of idle. If the cpu is busy between exiting idle and the timer firing we assume the cpu is underpowered and ramp frequency up
HOTPLUG CONFIG:
The hotplug config in Hundsbuah's Kernel allows you to control how CPU cores are brought online as threads are processed. A thread is the smallest sequence of instructions that can be managed independently by a process scheduler. Threads are contained within a process. A process is the execution of instructions contained within a program. On a single processor system multi-threading (multitasking) is generally implemented by transmitting/sending signals over a common signal path; the processor switches between different threads. This switching generally happens frequently enough that the user perceives the threads or tasks as running at the same time. If the CPU is overloaded and a thread is queued up by the process scheduler then lag/stuttering is likely to occur because thread switching does not occur quickly enough to be hidden from the user. On a multi-core system threads can be truly concurrent, with every processor or core executing a separate thread simultaneously, which decreases the potential for lag/stuttering. If core 1 is busy processing a thread and another thread is queued up by the process scheduler we want an additional core to become active so that core 1 does not have to switch between threads. However, we also do not want to bring cores online needlessly. If a core is able to process multiple threads fast enough such that switching is unnoticeable then it would be inefficient to bring another core online. The hotplug config can be found in the following location:
/sys/kernel/rt_config/rt_config
I/O TWEAKS:
The I/O scheduler handles read/write requests from memory (RAM and storage). The I/O scheduler we use can significantly impact I/O (read/write) performance. For more info about the various I/O schedulers available in android see post #4 in the following thread - http://forum.xda-developers.com/showthread.php?t=1369817
The location of the I/O scheduler is:
/sys/block/mmcblk0/queue/scheduler
/sys/block/mmcblk1/queue/scheduler
Use the follIng lines to change the I/O scheduler:
echo "sio" > /sys/block/mmcblk0/queue/scheduler
echo "sio" > /sys/block/mmcblk1/queue/scheduler
KERNEL MODULES:
A kernel module is a file containing code that extends the functionality of our kernel. Modules allow our kernel to communicate with different types of hardware (ex - bluetooth), utilize various file systems (ex - NTFS), or system calls (ex - frandom.ko). Kernels do not automatically come with all available modules, loading only the most essential modules can reduce a kernels footprint and potentially improve performance. Simultaneously, loading improved modules can improve performance in some cases (ex - frandom.ko). For more info about various kernel modules see post #3 in the following thread - http://forum.xda-developers.com/showthread.php?t=1369817
NOTE - You cannot download and load kernel modules from the internet. They need to be compiled for kernel you are using.
To make a kernel module available make sure /system is mounted as rewritable, rather than read-only (see step #5 for further instructions). Copy the module .ko file (ex - tntfs.ko) to the following location:
/system/lib/modules
To check what modules are loaded at boot enter the following command in a terminal:
lsmod
To load a kernel module at boot add the following line to your init.d script:
insmod /system/lib/modules/module name
To unload a kernel module at boot add the following line to your script
rmmod module name
SYSCTL TWEAKS:
This section is currently under construction, more tweaks will be posted once I find them. Sysctl is an interface that is used to examine and dynamically change parameters within a linux based OS.
To change the TCP Congestion Algorithm add the following line to your script:
/system/xbin/sysctl -w net.ipv4.tcp_congestion_control=westwood
NOTE - For a brief explanation of TCP/IP protocols and network congestion algorithms see the following post - http://forum.xda-developers.com/showpost.php?p=48088128&postcount=1884
FINISHING YOUR SCRIPT:
Once all your tweaks are written go through the entire script and make sure syntax is exact - no extra spaces or characters. Save your first script as w/e you want (ill explain naming later) just make sure it doesn't have a file extension. I'm talking total absence of file extensions. WHOA! WHAT! WTF YO!
NOTE - Android Tuner saves scripts by default in the "at" folder in "sdcard0"
Example Script:
Code:
#!/system/bin/sh
#CPU Tweaks
echo "1350 1320 1280 1240 1200 1150 1100 1050 1000 950 900 860 820 780 750 720 700" > /sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table
#Governor Tweaks
echo "40000" > /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
#SD Tweaks
echo "vr" > /sys/block/mmcblk0/queue/scheduler
echo "vr" > /sys/block/mmcblk1/queue/scheduler
#Module Tweaks
insmod /system/lib/modules/ frandom.ko
rmmod tntfs.ko
rmmod texfat.ko
Step #4: Test Your Script
You can test your script using a root terminal shell (Android Tuner has a terminal). Open a terminal, type "su", and hit enter (or select the box beside "su" in AT). This will give you the ability to run commands as root. To test your script enter the following command:
sh directory of your script
EXAMPLE - sh /storage/sdcard0/at/scripts/01ZenKernelTweaks
Check the files that correspond to the tweaked parameters to see if the script worked. If the values were correctly modified then you have officially finished writing your first working init.d script.
Step #5: Enable Your Script
First, open your file manager, go to your root directory, and remount your /system partition as RW instead of RO. This is typically done by long-pressing the /system folder (ex - AntTek Explorer), file manager settings (ex - esFile Explorer), or through the overflow menu. Once the /system is mounted as RW we can move our script to the init.d folder and change our scripts permissions. The init.d folder is located here:
/system/etc/init.d
The name of your script determines the order in which it is executed. The first two characters determine the order of execution. The ordering is as follows - numbers from 0-99, then letters from A-Z. The first two letters of a script's name are typically numbers between 0-99, this is the standard method of script naming that most developers/tweakers use. Set the name of your script so that it is executed in the order that you wish. Mine is set to execute first because I want to get kernel tweaks done as early as possible.
Once you have named your script long-press it and select "Change Permissions" (or however this is done in your file manager). Give User, Group, and Other read, write, and execute permissions.
Your init.d script will now optimize your tablet quickly and efficiently at every boot. Don't get out of your chair too fast....Before doing anything else, I suggest revelling in your awesome new-found abilities for a significant period of time. Pat yourself on the back. Start referring to yourself as "a boss" if you like. You deserve it.
CAUTION:
Although init.d scripts are easy to make, a bad script may cause boot looping. However, a bad script does not necessarily = boot looping. I have yet to cause a boot loop and I have written many scripts that did not work. Everything typically boots normally, the bad lines in the script are simply not applied. Before enabling your script I strongly suggest taking a Nandroid backup in TWRP. To do so boot into TWRP and select "Backup" from the home screen. This will allow you to restore your entire system, which is done via the "Restore" tool in TWRP.
NOTE - Do not enable scripts to run at boot in a program like Android Tuner or others similar to it. If the script is bad it will cause boot looping because the app will keep trying to run it. If you put the script in the init.d folder and enable it yourself you will avoid this issue.
SUGGESTION:
If you want more examples of tweaks that can help you optimize your tablet see my guide to tweaking and optimization. It fills any gaps in this guide and contains many useful resources. You can find it here - http://forum.xda-developers.com/showthread.php?t=2232715
tweakalicous...
lucius.zen said:
HAPPY TWEAKING,
Lucius
PS......ITS A CELEBRATION, *****ES!!!!!
Click to expand...
Click to collapse
LOL ... great tut Zen ...
Very nice, thanks Zen.
I accidentally stated in Step #3 that "Android saves scripts by default in the 'at' folder in your internal storage"....However, I meant to write "Android Tuner saves scripts...". Changed the OP, just wanted to make sure anyone who has read it already isnt like "WTF ZEN! Where is my damn script! Derpa a derrrr".
Breaking News.....
***************IMPORTANT UPDATE - MUST READ BREAKING NEWS*****************
DEY TUK ARRRRR JEEEERRRRRRRBSSSSS!!!!!!!
.....watching too many episodes of SP lately
lucius.zen said:
How-To Write Init.d Scripts for the tf700
Click to expand...
Click to collapse
Great tutorial!
lucius.zen said:
The number, or letter, at the beggining of the init.d script determines its order of sexecution, beginning at 1 or A, and going up to 99 or Z.
Click to expand...
Click to collapse
The universal convention is to use a numeric prefix from 00 to 99, but in reality the name can be anything and the scripts are simply executed in alphanumeric order - digits come before "A". I recommend using two-digit prefixes as intended.
lucius.zen said:
Code:
#!/system/bin/sh
#CPU Tweaks
echo "1300 1200 1150 1125 1112 1100 1087 1075 1050 1037 1025 1012 987 975 962 950 925 912 900 887 875 862 850 837 825 812 800 775 762 750 737 725 712 700 687 675 650 637 625 600" > /sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table
Click to expand...
Click to collapse
Note that the UV_mV_table has a completely different format when reading or writing the file - one reason why I hate this interface. But it's the "standard" that was established by whoever hacked the first implementation, and user mode apps expect it like this.
lucius.zen said:
Although init.d scripts are easy to make, you can potentially cause boot looping, please proceed with caution.
Click to expand...
Click to collapse
To repair this, boot into recovery, connect via adb shell, and do the following:
(if needed
mount -o remount,rw /system
chmod 0666 /system/etc/init.d/50myevilscript
This will remove "execute" permissions for the script, which will effectively disable it.
Say I tested and am currently using 10 scripts, how do I create a .zip recovery file so I can flash/install the scripts at once, every time I reflash or factory reset my rom?
Thanks for your awesome tuto ! But I've a question concerning the gpu governor: it's possible to set this governor with command line too ?
@lucius.zen
It is a nice write up and great tutorial. I am enjoy reading it and keep up the good work... :good:
LetMeKnow said:
@lucius.zen
It is a nice write up and great tutorial. I am enjoy reading it and keep up the good work... :good:
Click to expand...
Click to collapse
@LetMeKnow
Thanks a lot dude very much appreciated, makes me miss contributing to xda. I made a lot of promises and left too much work unfinished. I haven't been on for 6 months because I have been dealing with some pretty serious mental health issues. Apparently I am mildly schizophrenic with comorbid anxiety and attention issues. Been super fun times lol. Hoping to get back in the game this holiday season, would be sweet to share some tweaking/optimization ideas, I havent had much of a chance to check out your tweaks but I have heard great things.
All the best,
Lucius
lucius.zen said:
@LetMeKnow
Thanks a lot dude very much appreciated, makes me miss contributing to xda. I made a lot of promises and left too much work unfinished. I haven't been on for 6 months because I have been dealing with some pretty serious mental health issues. Apparently I am mildly schizophrenic with comorbid anxiety and attention issues. Been super fun times lol. Hoping to get back in the game this holiday season, would be sweet to share some tweaking/optimization ideas, I havent had much of a chance to check out your tweaks but I have heard great things.
All the best,
Lucius
Click to expand...
Click to collapse
Thanks for a kind word... It sounds like that you need to take of yourself a little better before worrying about the contributing to xda. You do a lot for the community already and hope you will get very soon. Please let me know whenever you have time to talk about tweaks and more than happy to share what I know.
Cheers and get well,
LMK
Missing Files
Hi,
Using the guide I came up with the following script:
Code:
#!/system/bin/sh
#CPU Tweaks
echo "1350 1320 1280 1240 1200 1150 1100 1050 1000 950 900 860 820 780 750 720 700" > /sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table
echo "20000" > /sys/devices/system/cpu/cpufreq/interactive/timer_rate
echo "1900000" > /sys/devices/system/cpu/cpufreq/interactive/max_boost
echo "1900000" > /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
echo "85" > /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
echo "85" > /sys/devices/system/cpu/cpufreq/interactive/go_maxspeed_load
echo "40000" > /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
but I received an error for hispeed_freq and go_hispeed_load claiming "No such file or directory". When I checked the /sys/devices/system/cpu/cpufreq/interactive/ directory, the two files are missing. Are they supposed to be present on the TF700?
Thanks
00shakey00 said:
Hi,
Using the guide I came up with the following script:
Code:
#!/system/bin/sh
#CPU Tweaks
echo "1350 1320 1280 1240 1200 1150 1100 1050 1000 950 900 860 820 780 750 720 700" > /sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table
echo "20000" > /sys/devices/system/cpu/cpufreq/interactive/timer_rate
echo "1900000" > /sys/devices/system/cpu/cpufreq/interactive/max_boost
echo "1900000" > /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq
echo "85" > /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load
echo "85" > /sys/devices/system/cpu/cpufreq/interactive/go_maxspeed_load
echo "40000" > /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
but I received an error for hispeed_freq and go_hispeed_load claiming "No such file or directory". When I checked the /sys/devices/system/cpu/cpufreq/interactive/ directory, the two files are missing. Are they supposed to be present on the TF700?
Thanks
Click to expand...
Click to collapse
Everything looks good in the script. Not sure why those parameters are missing. What kernel are you using?
lucius.zen said:
@LetMeKnow
Thanks a lot dude very much appreciated, makes me miss contributing to xda. I made a lot of promises and left too much work unfinished. I haven't been on for 6 months because I have been dealing with some pretty serious mental health issues. Apparently I am mildly schizophrenic with comorbid anxiety and attention issues... Lucius
Click to expand...
Click to collapse
Forgive the digression, I couldn't help wondering: I don't mean to slight the condition in any way, but zen couldn't tackle it so you had to go the physical route?
graphdarnell said:
Forgive the digression, I couldn't help wondering: I don't mean to slight the condition in any way, but zen couldn't tackle it so you had to go the physical route?
Click to expand...
Click to collapse
Sorry I am having trouble understanding what you are asking. Are you wondering if I medication is more effective than meditation?
lucius.zen said:
Sorry I am having trouble understanding what you are asking. Are you wondering if I medication is more effective than meditation?
Click to expand...
Click to collapse
Here we go off topic already ... but just had to throw in my 2 cents. I have many conditions that have been treated for 30+ years (I am in my 50's) I had Chronic Severe OCD that was almost debilitating in my mid 20's. I also have A.D.H.D. (A.D.D) along with boughts of narcolepsy and severe panic attacks (were I end up on the floor or in the ER) anyways, I am a mess or I use to be. I did ALL the drugs Adderall (Amphetamine, Dextroamphetamine Mixed Salts) / Ritalin / Zoloft / bupropion / Xanax all at MAX DOSE. They all relieved some of the systems, but caused other issues to arise (addiction being one). I got into TD and Zen Yoga 10 years ago. 90% of my symptoms went away the first year, and I only take medication for my high cholesterol now. I feel great and work 10 to 13 hours a day. What this has to do with Init.d scripts .... *shrug* .... Pharmaceuticals just suck .
Now back to the Init.d scripting. Great job on the guide !! if this is not pinned it should be !!
Thank you for creating it.
Thibor69
Thibor69 said:
Here we go off topic already ... but just had to throw in my 2 cents. I have many conditions that have been treated for 30+ years (I am in my 50's) I had Chronic Severe OCD that was almost debilitating in my mid 20's. I also have A.D.H.D. (A.D.D) along with boughts of narcolepsy and severe panic attacks (were I end up on the floor or in the ER) anyways, I am a mess or I use to be. I did ALL the drugs Adderall (Amphetamine, Dextroamphetamine Mixed Salts) / Ritalin / Zoloft / bupropion / Xanax all at MAX DOSE. They all relieved some of the systems, but caused other issues to arise (addiction being one). I got into TD and Zen Yoga 10 years ago. 90% of my symptoms went away the first year, and I only take medication for my high cholesterol now. I feel great and work 10 to 13 hours a day. What this has to do with Init.d scripts .... *shrug* .... Pharmaceuticals just suck .
Now back to the Init.d scripting. Great job on the guide !! if this is not pinned it should be !!
Thank you for creating it.
Thibor69
Click to expand...
Click to collapse
Thanks dude! They tried to prescribe me an antipsychotic for my schizophrenia but I try to avoide pharmaceuticals. I agree that meditation, yoga/exercise work really well, as does tailoring my diet, etc. Glad things are going well for you now.
All the best,
Lucius
lucius.zen said:
Sorry I am having trouble understanding what you are asking. Are you wondering if I medication is more effective than meditation?
Click to expand...
Click to collapse
Actually I was asking if Zen would not suffice that you need to take medication. I don't see that drugs would do anything other than suppressing symptoms. Nothing is done about the root-cause, and that's how they get you hooked for life.
My own experience is that body is a reflection of mind and vice versa. The dichotomy is simply false. However, given the ingrained ruts one needs to obliterate, diet for the body must be watched as much as mediation must be practiced for mental well-being. You ever studied Oshawa? Much more than just a regime, the way I see it.
Sorry, I won't digress any further.
lucius.zen said:
The name of your script determines the order in which it is executed. The first two characters determine the order of execution. The ordering is as follows - numbers from 0-99, then letters from A-Z. The first two letters of a script's name are typically numbers between 0-99, this is the standard method of script naming that most developers/tweakers use. Set the name of your script so that it is executed in the order that you wish. Mine is set to execute first because I want to get kernel tweaks done as early as possible.
Click to expand...
Click to collapse
Great guide, thanks for the tutorial. One question, regarding the order of execution of scripts, does it matter if two or more scripts share the same prefix (1st 2 characters), for example 99SuperCharger and 99Supersudaemon, and 98KickAssKernelizer and 98Fly-On, 94engineflush and 94governor, and etc.? I combine scripts from different devs by editing their code to arrest any conflicts when they get executed, though, I don't change the script's name. Never had any problems, just curious on the sequencing of init.d scripts.
iZLeeP said:
Great guide, thanks for the tutorial. One question, regarding the order of execution of scripts, does it matter if two or more scripts share the same prefix (1st 2 characters), for example 99SuperCharger and 99Supersudaemon, and 98KickAssKernelizer and 98Fly-On, 94engineflush and 94governor, and etc.? I combine scripts from different devs by editing their code to arrest any conflicts when they get executed, though, I don't change the script's name. Never had any problems, just curious on the sequencing of init.d scripts.
Click to expand...
Click to collapse
No it doesn't as they get executed alphabetically but it looks a mess and there is little room for ordering.
Please see post #2 for instructions and change log.
BASICS/PREREQUISITES:
To begin you must unlock, install TWRP, and acquire system files and mods.
Unlocking:
Use the Asus unlocking tool from the downloads section on the Asus TF700 support website. Simply install the .apk, run the app, and follow the prompts.
Installing TWRP:
TWRP can be found here - http://forum.xda-developers.com/showthread.php?t=1797692
Instructions for installing TWRP can be found here - http://forum.xda-developers.com/showthread.php?t=1938129&highlight=root+custom+recovery
NOTE - To boot into TWRP press and hold the power and volume down button until white text appears in the top left corner of your screen. Release both buttons and press volume up.
System Files:
System files and mods can be obtained from the following links. Please thank/donate to the devs for all of their hard work.
CROMi-X [ROM] - http://forum.xda-developers.com/showthread.php?t=2425383
Hundsbuah’s Kernel - http://forum.xda-developers.com/showthread.php?t=2143093&page=80
Data2SD [Mod] - http://forum.xda-developers.com/showthread.php?t=1962507
ROM2SD [Mod] - http://forum.xda-developers.com/showthread.php?t=2501129
CrossBreeder [Mod] - http://forum.xda-developers.com/showthread.php?t=2113150
DATA2SD/ROM2SD:
Data2SD works around poor I/O performance by giving us the ability to utilize a fast microSD card as our primary mode of storage. ROM2SD follows a similar premise as Data2SD; however, it also gives us the ability to dual boot any android ROM compatible with our tablet. The application of these mods results in apps opening faster, faster boot times, faster read/write speeds, and faster downloading/less lag while downloading. Step #1 and Step #2 only need to be followed the first time you apply these mods.
Step #1 - Create GParted Live USB Stick:
In order to run your tablet from a microSD card you will need to reformat it using Gparted (a linux based partition editor) installed on a live USB stick. A live USB stick has the image (.iso file) of a program burnt onto it so that it can be run at boot on a PC.
Find Gparted here - http://gparted.sourceforge.net/livecd.php
Download the live CD/USB image. The easiest tool for burning the image is the LinuxLive USB Creator.
LinuxLive USB Creator can be found here - http://www.linuxliveusb.com/
Download the program and install it. Simply follow the instructions within the program using the Gparted image.
Step#2 - Reformat microSD Card:
This involves booting into Gparted, clearing your microSD of existing partitions, and creating new partitions to store androids /system (ROM, kernel), /data (apps and data), and /media partitions (user data and media files - "sdcard0"), which were previously stored internally.
Boot Into Gparted:
Insert your live USB and microSD card into your PC. To boot into Gparted power on your PC and select one of the "FX" buttons to bring up the boot selection menu (I need to select F9). The live USB will be labelled something like "USB Diskette", or "USB Hard Disk". Select your live USB and follow the prompts to boot into Gparted.
Create Partition for External Storage:
Once Gparted has loaded delete any existing partitions on your microSD card. Next create a primary partition using the Fat32 file system at the very beginning of your card with at least 4Gb of storage (I am using 8Gb). This is recognized and functions as external storage so that we have a place to store flashable (installable) .zips and TWRP backups. It does not contain any data relevant to the functioning of our tablet.
NOTE - Partitions should be aligned to mb and ideally be divisible by 4.
Create Partition for System Storage:
After creating a partition for external storage we need to create partitions for androids /system, /data, and /media partitions. If you plan on using Data2SD you only need to make a second partition. If you plan on using ROM2SD then you need to make 2 additional partitions.
Data2SD - Create a second primary partition using the ext4 file system with the remaining space on your microSD. This partition will contain your /system, /data, and /media partitions. After you have created this partition you will need to flag it to run at boot. Right click the ext4 partition and select “Manage Flags”. Check the box beside “Boot”. You are done reformatting, simply exit Gparted.
ROM2SD - The second partition you need to make will contain your /data and /media partitions. The third partition will contain your /system partition. It only needs enough space to store your ROM and kernel so we will create it first at the very end of the microSD card. Create a primary partition using the ext4 file system with 1Gb of space. After you have created this partition you will need to flag it to run at boot. Right click the ext4 partition and select “Manage Flags". Check the box beside “Boot”. Now create another primary partition using the ext4 file system with the remaining space on your card. You are done reformatting, simply exit Gparted.
Step #3 - Install System Via TWRP:
I do not recommend setting up Data2SD or ROM2SD using old data. Please do a fresh install to avoid issues. I am able to wipe my tablet completely, install my system, set up my apps/data, and apply all of the tweaks in this guide in less than half an hour.
Getting Started:
If using Data2SD please download the "mount-data2sd.zip" file attached to this post (credit @Mistar Muffin). If using ROM2SD please download the "mount-rom2sd.zip" file attached to this post (credit @_that). Move this file, your ROM, your kernel, and any applicable mods to the Fat32 partition on your microSD card. Power down your tablet and boot into TWRP (see basics section for details).
Install Using Data2SD:
Boot into TWRP and wipe everything other than external storage (cache, dalvik cache, data, system, internal storage). To begin setting up Data2SD select CROMi-X for installation. Next choose "mount-data2sd.zip". This resets device nodes so that TWRP will install .zips to our microSD card rather than internal storage. Begin installation once the rest of your .zips are selected (ex - themes, mods, etc). During CROMi-X installation you will be presented with a kernel selection page. In the first section select your desired kernel. In the second section choose the Data2SD compatible option. When installation has finished reboot your tablet and set it up as usual.
Install Using ROM2SD:
Before proceeding check out _that`s ROM2SD thread so you understand how ROM2SD works - http://forum.xda-developers.com/showthread.php?t=2501129. CROMi-X or miniCROMi-X users can utilize the following instructions to install ROM2SD, see the following post if you are dual-booting other ROMs - http://forum.xda-developers.com/showpost.php?p=47333729&postcount=31.
Boot into TWRP and wipe everything other than external storage (cache, dalvik cache, data, system, internal storage). We begin by setting up our tablet to run from internal storage. Select CROMi-X or miniCROMi-X for installation. Hundsbuah's kernel and _that's kernel are available through CROMi-X and are ROM2SD compatible. Next choose any other .zips you need to flash (ex - themes, mods, etc). During CROMi-X installation you will be presented with a kernel selection page. In the first section select a ROM2SD compatible kernel, in the second section choose the 4th option. This installs CROMi-X to your internal storage and allows you to boot to an additional system on a microSD card. Once installation has finished reboot your tablet.
When you reboot you will be presented with the android set up wizard. Go through this as usual and set up you tablet. Once you have finished reboot your tablet back to recovery. Next we will set up our microSD. Select CROMi-X or the ROM2SD compatible version of miniCROMi-X for installation. Next choose "mount-rom2sd.zip". This file updates TWRPs device nodes so that .zips are installed to the correct partitions on your microSD card. Select the rest of the .zips you need to flash and begin installation. Once you reach the kernel selection page in the CROMi-X installer select your desired kernel and the third option in the second section. Once installation has finished reboot your tablet. After rebooting you should be presented with the android set up wizard again.
NOTE - To boot using internal storage remove your microSD card from your tablet and power on. To boot to using your microSD simply put it back in and turn on your tablet.
Creating/Restoring Nandroid Backups:
To create or restore a TWRP Nandroid backup you must first install mount-data2sd.zip or mount-rom2sd.zip. This resets device nodes so that TWRP will correctly backup/restore partitions on your microSD card. The "Backup" section allows you to create Nandroid backups. The "Restore" tool in TWRP allows you to restore Nandroid backups.
Wiping Partitions and Factory Reset:
Boot into TWRP and install mount-data2sd.zip or mount-rom2sd.zip. This resets device nodes so that TWRP will correctly wipe partitions stored on your microSD card. The "Wipe" section can be used to do a factory reset or selectively wipe your dalvik cache, cache, /system partition, /data partition, or internal storage.
NOTE - Partitions are mounted differently after implementing Data2SD/ROM2SD. The Fat32 partition on your microsd is recognized as "MicroSD". The media partition is still mounted as "sdcard0". It can be found in the /system/storage/ directory, along with your tablets internal storage, which is mounted as "sdcardi". If using ROM2SD you internal /data partition can be accessed via the/datai directory.
CPU/GPU FREQ CAPS:
With Hundsbuah's kernel you can set freq caps for the CPU and GPU within each of Asus' power modes (power saving, balanced, performance). The parameters we need to edit can be found in the following files:
cpu1.sh (power saving)
cpu2.sh (balanced)
cpu3.sh (performance)
Which are located in the following directory:
/system/etc/cpuX.sh
To apply the following tweaks a text editor is used to edit lines contained in the aforementioned files. I utilize the editor built into AntTek Explorer Ex.
GPU Frequency Cap:
The following lines set GPU voltage:
logi "echo GPU voltage > core_cap_level"
echo GPU voltage > /sys/kernel/tegra_cap/core_cap_level
To modify the GPU freq cap simply fill the red portion of the above lines with your desired GPU voltage. The GPU voltage determines the GPU freq cap. Here is how Hundsbuah's stock voltage table works, if you modify the voltage table these values will be different:
700 mhz - 1425 mV
650 mhz - 1387 mV
600 mhz - 1350 mV
520 mhz - 1300 mV
484 mhz - 1250 mV
446 mhz - 1200 mV
408 mhz - 1150 mV
361 mhz - 1100 mV
247 mhz - 1000 mV
200 mhz - 950 mV
GPU FPS Limit:
To unlock the GPU FPS limit and change it to 90 add the portion in red to the following lines:
logi "setprop persist.tegra.NV_FPSLIMIT 1"
setprop persist.tegra.NV_FPSLIMIT 1
logi "setprop persist.sys.NV_FPSLIMIT 90"
setprop persist.sys.NV_FPSLIMIT 90
CPU Frequency Caps:
To change the frequnecy caps for each CPU core fill the red portion of the following lines with the desired frequency:
logi "echo Core 1 freq cap > pwr_cap_limit_1"
echo Core 1 freq cap > /sys/module/cpu_tegra/parameters/pwr_cap_limit_1
logi "echo Core 2 freq cap > pwr_cap_limit_2"
echo Core 2 freq cap > /sys/module/cpu_tegra/parameters/pwr_cap_limit_2
logi "echo Core 3 freq cap > pwr_cap_limit_3"
echo Core 3 freq cap > /sys/module/cpu_tegra/parameters/pwr_cap_limit_3
logi "echo Core 4 freq cap > pwr_cap_limit_4"
echo Core 4 freq cap > /sys/module/cpu_tegra/parameters/pwr_cap_limit_4
Asus Power Saving Modes:
The following profiles are optimal for specific tasks/uses. They were designed to obtain a lag-free experience based on certain levels of CPU load.
Power Saving - Used for tasks with a moderate to high load for extended periods of time (productivity, browsing heavy websites, streaming video online, heavy multitasking)
- GPU Voltage/Freq = 1425/700
- Core 1/2/3/4 = 1750000
- Quadrant Score - 7400-7500 (Screenshot - https://www.dropbox.com/s/jqdcrwc7t...core - Power Saving Mode (max 1.75Ghz).jpg?m=)
Balanced - Used for tasks with low to moderate load (general use, light browsing, email, media consumption, etc.)
- GPU Voltage/Freq = 1425/700
- Core 1/2/3/4 = 1600000
- Quadrant Score - 6900-7000 (Screenshot - https://www.dropbox.com/s/zlfhnv1jq...ant Score - Balanced Mode (max 1.6Ghz).jpg?m=)
Performance - Used for short intense workloads
- GPU Voltage/Freq = 1425/700
- Core 1/2/3/4 = 1900000
- Quadrant Score - 8000-8100 (Screenshot - https://www.dropbox.com/s/iv5wawq49...ant Score - Performance Mode (max 1.9Ghz).jpg)
INTERACTIVE GOVERNOR TWEAKS:
The CPU governor controls how the CPU scales through frequency steps in response to changes in CPU load. CPU load reflects the difference between our processors current power (increased by freq and voltage - decreased by leakage) and the power needed to effectively process work queued up by the process scheduler. The magnitude and variability of CPU load are important indicators of processor performance. As load increases instances of lag also tend to increase. If we were to graph instances of lag/stuttering and CPU load over time you would see that stuttering happens most when load is high. An unstable, or highly variable CPU load indicates that CPU scaling is not responsive to the demands of the process scheduler; its almost as if scaling is a half-step too late. In this condition scaling is generally erratic, which decreases time spent idling, system stability, and responsiveness. Ideally we want CPU load to be as low and stable as possible as this indicates scaling is working efficiently. The amount of power a CPU can output does not matter; if it is not effectively scaled based on changes in load then lag/unresponsiveness is bound to occur. The following governor tweaks improve the efficiency of CPU scaling. To evaluate their effectiveness Android Tuner was utilized to monitor CPU load, CPU scaling in real-time, total time spent at each frequency step, and core temperature during benchmark tests and actual use. Detailed explanations can be found beneath each tweak.
NOTE - You will need to write an init.d script to apply the following tweaks. See my guide to writing init.d scripts for details - http://forum.xda-developers.com/showthread.php?t=2198510.
NOTE - CROMi-X Users - The following tweaks, aside from max_boost, are applied by default in CROMi-X.
timer_rate - 20000
Sets the rate at which the governor samples cpu load. Lower values result in scaling that is too jumpy. Higher values result in scaling that is not responsive enough.
min_sample_time - 40000
Sets the minimum amount of time spent at a freq step before scaling down. The interactive governor samples CPU load every 2 ms. If the CPU is underpowered core freq is ramped up. Once load decreases the CPU is scaled back down. By default the CPU must spend at least 3 ms at a freq before it can scale down, which does not make sense if the governor is set on a 2 ms timer. A 4 ms minimum downscaling delay makes sense - the timer samples load twice before scaling down. Load tends to fluctuate drastically with touch devices; thus we do not want the CPU to scale down if it is going to have to ramp up again. Having a 2 ms timer allows the CPU to be scaled up quickly, while a 4 ms down scale delay prevents the CPU from downscaling early.
midrange_freq = 760000 - set as close to middle of freq table as possible
Needs to be recalibrated to reflect modified freq caps. If core freq caps are increased midrange freq should be adjusted so that the governor knows how to control the CPU properly.
max_normal_freq = 1300000
Instructs the CPU to jump to this freq when midrange_go_maxspeed_load is reached. For some reason this tweak has had a greater impact on performance than any of my governor tweaks. Before applying this tweak 475 mhz and max frequency are used most while under low/moderate load. After applying this tweak 475 mhz and 1.3 Ghz are utilized more often, as are a wider range of freq steps. Despite spending far less time at max frequency benchmark scores and performance have increased.
max_boost = 1900000 - set to highest freq available
Max boost is a mechanism for clearing a mounting queue as quickly as possible to prevent lag. It will do its job most effectively if we give it as much juice as possible. Controlled by go_maxspeed_load.
NOTE - CROMi-X Users - To apply the above tweak delete or edit the line changing max_boost under "#CPU and VM Tweaks" in sdbags 50CleanTWEAKS init.d script.
midrange_go_maxspeed_load = 65
go_maxspeed_load = 85
Optimal for keeping CPU load low and stable. Through my testing I have found that it is more efficient to adjust freq a little earlier by setting load thresholds lower (65/85) than it is to make adjustments when load has already gotten relatively high. Improves responsiveness without hurting battery life because the CPU spends more time idling.
To implement the above tweaks add the following lines to your init.d script:
echo "20000" > /sys/devices/system/cpu/cpufreq/interactive/timer_rate
echo "40000" > /sys/devices/system/cpu/cpufreq/interactive/min_sample_time
echo "760000" > /sys/devices/system/cpu/cpufreq/interactive/midrange_freq
echo "1300000" > /sys/devices/system/cpu/cpufreq/interactive/max_normal_freq
echo "1900000" > /sys/devices/system/cpu/cpufreq/interactive/max_boost
echo "65" > /sys/devices/system/cpu/cpufreq/interactive/midrange_go_maxspeed_load
echo "85" > /sys/devices/system/cpu/cpufreq/interactive/go_maxspeed_load
NOTE - Detailed descriptions of each governor can be found at the following link - http://forum.xda-developers.com/showthread.php?t=1369817.
HOTPLUG CONFIG:
The hotplug config in Hunds Kernel allows you to control how CPU cores are brought online as threads are processed. A thread is the smallest sequence of instructions that can be managed independently by a process scheduler. Threads are contained within a process. A process is the execution of instructions contained within a program. On a single processor system multi-threading (multitasking) is generally implemented by transmitting/sending signals over a common path; the processor switches between different threads. This switching generally happens frequently enough that the user perceives the threads or tasks as running at the same time. If the CPU is overloaded and a thread is queued up by the process scheduler then lag/stuttering is likely because thread switching does not occur quickly enough to be hidden from the user. On a multi-core system threads can be truly concurrent, with every processor or core executing a separate thread simultaneously, which decreases the potential for lag/stuttering. If core 1 is busy processing a thread and another thread is queued up by the process scheduler we want an additional core to become active so that core 1 does not have to switch between threads. However, we also do not want to bring cores online needlessly. If a core is able to process multiple threads fast enough such that switching is unnoticeable then it would be inefficient to bring another core online.
NOTE - CROMi-X Users - The following tweak is applied by default in CROMi-X.
To change the hotplug config add the following line to your init.d script:
echo "2 4 6" > /sys/kernel/rt_config/rt_config
Instructs the kernel to bring core 2, 3, or 4 online when more than X threads are active. Core 2 is brought online when 3-4 threads are active, core 3 is brought online when 5-6 threads are active, and core 4 is brought online when 7+ threads are active. Through my testing I have found that a single core running at 475 Mhz has enough power to effectively process a constant low load. If hotplugging values are set lower then the kernel tends to unnecessarily bring additional cores online while in a low load state. If the kernel is told to activate cores later then we begin to notice lag/stuttering due to thread switching.
KERNEL TWEAKS:
The following tweaks directly impact how the kernel controls our tablets hardware.
CPU Frequency Table:
The CPU frequency table sets the frequencies that are available to the CPU. The following tweak modifies the minimum freq step that is available to the CPU, to apply it add the following line to your init.d script:
echo "475000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
Through my testing I have found that if an app is open and generating a very low load we cannot utilize frequencies below 475 mhz. If allowed to drop below 475 mhz core freq bounces between 204 mhz and 475 mhz while in an active low load state; which indicates that freq steps below 475 mhz are incapable of handling the load induced by the activation of a foreground app. Preventing the CPU from dropping below 475 mhz increases responsiveness and stabilizes CPU load as the CPU cannot drop to ineffective frequencies. This does not impact battery life because of the design of the Tegra 3 processor. The Tegra 3 has 5 cores; 4 primary fast-process cores and 1 slow-process battery saving core. If our tablet is asleep or idling/inactive (no foreground app) then processing is handled by the low-powered battery saving core. If any foreground app is open our kernel activates a combination the 4 primary cores. Scaling_min_freq has no impact on the battery saving core. Therefore, increasing scaling_min_freq ensures we utilize effective frequencies while in an active state without preventing the CPU from dropping to lower frequencies while inactive.
CPU Voltage Table:
The CPU voltage table sets the voltages that are supplied to frequencies in the frequency table. Processing power is increased by frequency and voltage; while it is decreased by leakage, which is increased by heat. As voltage increases so does heat. Therefore, voltage has a positive and negative impact on processing power. The optimal voltage table balances the costs of reducing voltage with the benefits of reducing heat. When undervolting we want to drop voltages as low as possible without decreasing the load that a frequency step can handle. If voltages are dropped too low the need to jump to higher frequencies negates the benefit of running lower voltages. At this point, stability is also compromised. In order to change your CPU voltage table add the following line to your init.d script:
echo "1337 1300 1275 1250 1225 1200 1175 1150 1125 1100 1075 1050 1025 1000 975 950 925 900 875 850 825 800 775 750 725 700 687 675" > /sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table
The voltage table above has been rescaled and undervolted such that heat production is decreased while performance and stability are maintained. Battery consumption correspondingly decreases as less voltage is drawn by each freq step. Lower voltages are used across the entire table yet the undervolting is not very severe, if voltages are dropped any lower the load that each freq step can handle begins to decrease and introduce instability. The lowest and highest freq, where CPU utilization is highest, are undervolted the most. The voltages supplied by the table are optimal for the load each freq step needs to process, which is indicated by improved CPU scaling. CPU load is lower and more stable, low to mid range freq are used more, and upper range freq are used less. The CPU responds to changes in load more appropriately; while in a low load state we are much more likely to jump to a midrange feq than an upper range freq.
GPU Voltage Table:
The GPU voltage table sets the voltages that are supplied to freq in the freq table. Hundsbuah's voltage table is nearly optimal. The voltage supplied to 700 mhz (1425 mV) cannot be dropped without negatively impacting performance. That being said, the voltages supplied to lower freq can be dropped and rescaled such that performance is maintained. The following voltage table reduces heat production and battery consumption without impacting performance and stability. To edit your GPU voltage table add the following line to your init.d script:
echo "1425 1375 1325 1275 1225 1175 1125 1075 1025 975 925" > /sys/devices/system/cpu/cpu0/cpufreq/gpu_voltage_control
I/O TWEAKS:
I/O (input/output) refers to the communication between an information processing system and external sources (users, network cards, monitors etc). I/O operations involve an input device, a processing unit, and an output device. Whether or not a device is classified as input or output depends on one's perspective because many devices can serve as an input or produce output. Within computer architecture the CPU is the processing unit and main memory (RAM) is the output device. Any operation involving the transfer of data to/from this combination (ex - from an SSD) is considered I/O. I/O operations utilize both slow-access bulk storage (ROM) and fast-accesss memory (RAM), which prevents the CPU from processing flows of information at the same rate in both directions. The bottleneck introduced by R/W operations on slow-access storage often underlies laggy/unresponsive performance. I/O scheduling is utilized to avoid lag/stuttering that results from disparate rates of information processing.
Scheduler:
I/O schedulers control the flow of information between input devices, processing units, and output devices. Schedulers utilize algorithms to maximize the efficiency of I/O operations. Thus, I/O performance is significantly impacted by the scheduler that we use. To evaluate each scheduler's performance both Quadrant and Android Tuner were used; Quadrant for global I/O performance, Anroid Tuner for specific R/W speeds. I ran all schedulers through 6 trials in Quadrant and 6 trials in Android Tuner to control for variability in test scores and the effects of confounding variables. Following trials I calculated the mean R/W speed of each scheduler for all tested file sizes. Mean memory, I/O and total Quadrant scores were also calculated. Schedulers were then ranked from 1-6 within the previous measures. Finally, schedulers were ranked globally based on the mean of all within measure ranks. Results are as follows:
1)sio
2)deadline
3)row
4)cfq, noop
5)bfq
While the aforementioned ranks accurately reflect global I/O performance schedulers excel in a different areas. I suggest checking out my data at the following link and selecting the scheduler that is optimal for your system - https://www.dropbox.com/s/iie89tn33qe07j8/Lucius.Zen - IO Scheduler Data.xlsx?m=.
NOTE - CROMi-X Users - The following tweak is applied by default in CROMi-X.
To change your scheduler to "sio" add the following line to your init.d script:
echo "sio" > /sys/block/mmcblk0/queue/scheduler
echo "sio" > /sys/block/mmcblk1/queue/scheduler
NOTE - Detailed descriptions of each scheduler can be found at the following link - http://forum.xda-developers.com/show....php?t=1369817.
NOTE - Additional I/O tweaks can be found in the "I/O Scheduler Tweaks" section in post #3.
Structural/Clerical Section
METADATA:
INTRODUCTION:
Please advance through post #1 in the order I have laid out. I include prompts to links or other sections when necessary. I suggest reading the entire guide before applying any tweaks. See the "Appendix" section (post #3) for additional tweaks, mods, and useful resources.
Kernel Compatibility:
I am running Hundbuah's latest kernel. However, these tweaks should work well with other kernels (ex - _that's kernel).
Android Version/ROM:
This guide is based on the latest version of the android 4.2 ROM CROMi-Xenogenesis by sdbags. The modifications made in newer versions of android should have little impact on the effectiveness of these tweaks.
Init.d Scripts:
CROMi-X and other users can utilize the appropriate scripts attached to post #1 to apply tweaks implemented via init.d. To activate the script simply save it and remove the .txt appendage at the end of the file. See "Step #5: Enable Your Script" in my guide to writing init.d scripts for application instructions - http://forum.xda-developers.com/showthread.php?t=2198510.
Caution:
It is not possible to brick your device by applying the tweaks/mods in this guide. I have done terrible things to my tablet and she still works like a charm. However, I suggest taking a Nandroid backup of your /system, /data, and boot partitions before proceeding (see "Data2SD/ROM2SD" section in post #1).
Disclaimer/Support:
I am not a developer. I am simply an android enthusiast. I can guarantee that if you thoroughly follow the instructions in this guide you will not run into any issues. That being said I will not hold your hand. I have spent an immense amount of time ensuring this guide is incredibly thorough and easy to follow. I welcome all feedback relating to how this guide can be improved and promise I will do all I can to help anyone with issues. However, I have already spent far too many hours preparing this guide. I only ask that you do your best to avoid being a dumbass.
Happy Tweaking!
Lucius
IMPLEMENTATION GUIDE:
The following list outlines how I set up my system on a microSD formatted for ROM2SD (related section - "Data2SD/ROM2SD" - post #1). This roadmap is meant to simplify the overall application of this guide. Detailed instructions can be found in post #1 & #3. System files and installable mods can be obtained through links in the "Basics" section in post #1.
1) Wipe old data for fresh install (see "Data2SD/ROM2SD" - post #1).
- Boot into TWRP
- Install mount-rom2sd.zip (attached to post #1)
- Wipe cache, dalvik, system, data, and internal storage
- Format /data
- Power off
2) Install system and mods (see "Data2SD/ROM2SD" - post #1).
- Boot into TWRP
- Install CROMi-X to microSD
- Install mount-rom2sd.zip
- Install CrossBreeder mod (see "CrossBreeder Mod/AdAway App" - post #3)
- Install Disable_Journal.zip (attached to post #1 - see "Disable Ext4 Journalling" - post #3)
- Reboot System
3) Disable unnecessary apps (see "Disable Apps" - post #3).
4) Modify CPU/GPU profiles (see "CPU/GPU Freq Caps" - post #1).
5) Apply init.d script (attached to post #1 - see my guide to init.d scripting for application instructions - http://forum.xda-developers.com/showthread.php?t=2198510).
6) Disable CrossBreeder's governor & I/O tweaks (See Step #2 in "CrossBreeder Mod/AdAway App" - post #3)
7) Disable boot animation (see "Disable Boot Animation" - post #3).
8) Remap dock keyboard (see "Remap Dock Keyboard" - post #3).
9) Enable AdAway app & reboot when prompted (see "CrossBreeder Mod/AdAway App" - post #3).
CHANGE LOG:
Code:
[B]Feb.24/14:[/B]
- Added "Step #2 - Disable CrossBreeder's Governor & I/O Tweaks" in the "CrossBreeder Mod/AdAway App" section in post #3 - important for CrossBreeder mod users only
- Updated Quadrant scores in the "CPU/GPU Profiles" section in "CPU/GPU Freq Caps" in post #1
- Updated "Implementation Guide" in post #3
- Added note to "Remap Dock Keyboard Section" in post #3 - found APP_SWITCH function that invokes recent apps menu
[B]Feb.21/14:[/B]
- Added "Implementation Guide" section to post #2
- Renamed "Instructions" section in post #2 to "Introduction"
- Edited and cleaned up "Disable Ext4 Journalling" section in post #3
- Updated Power Saving mode Quadrant score in the "CPU/GPU Profiles" section in post #1
[B]Feb.20/14:[/B]
- Added new flashable .zip (Disable_Journal.zip) for disabling journalling - old one wasn't configured for our device - thanks LetMeKnow!
- Updated Quadrant scores in the "CPU/GPU Profiles Section" in post #1 and added screenshots
[B]Feb.19/14:[/B]
- Added "I/O Scheduler Tweaks" section to post #3
- Updated scripts to include aforementioned changes
- Added note to "Scheduler" section in post #1
[B]Feb.18/14:[/B]
- Added "Disable Logging/Logcat" section to post #3
- Updated scripts to include aforementioned change
- Reorganized post #3
[B]Feb.17/14:[/B]
- Added "Disable EXT4 Journaling" section to post #3
- Added "Set GPU FPS Limit" section to "CPU/GPU Freq Caps" in post #1 - thanks LetMeKnow!
- Added "Search Applications Provider" to "Disabled Apps" section in post #3
Updates Related to CROMi-X:
- Updated script for CROMi-X 5.3a compatibility
- Updated "Cromi-X Installer Options" section in post #3
- Added note to "TCP/IP Protocols and Congestion Algorithms" section in post #3
- Added note to "Scheduler" section in post #1
[B]Jan.13/14:[/B]
- Caught up on editing, reformatting, and reorganizing - fewer errors, clearer instructions, increased consistency across post #1-3 - not a single sub section made it out unscathed :)
- Modified intro to post #1
- Changed "Introduction" section in post #2 to "Instructions"
- Added "Init.d Scripts" section to "Instructions" section
- Added Google Search, Search, and User Dictionary to "Disabled Apps" section
- Added link to my TCP congestion algorithm data in "Optimal TCP Congestion Algorithm" section
Updates Related to CROMi-X:
- Updated script for CROMi-X users, please use new script for compatibility reasons - script was altered and renamed as entries in sdbags 50CleanTWEAKS script need to be removed or overwritten for compatibility reasons - see notes below
- Added note to "max_boost" in the "Interactive Governor Tweaks" section
- Added note to "Optimal TCP Congestion Algorithm" in the "TCP/IP Protocols and Congestion Algorithms" section
- Added note at the top of the "Interactive Governor Tweaks" section
- Added note at the top of the "Hotplug Config" section
[B]Jan.5/14:[/B]
- Updated CPU voltage table - midrange voltages rescaled and undervolted more - results in less heat, less battery consumption, greater usage of mid range freq, lower and more stable cpu load, feels more responsive, benchmark scores maintained, no decrease in stability thus far - attachments also updated
- Apologies for the many updates, voltage table tweaking can be finicky, tends to be a work in progress, should be the last for a while
[B]Jan.4/14:[/B]
- Changed top voltage (1.9 Ghz) in CPU voltage table from 1350 mV to 1337 mV as it is running much more stable - attachments also updated
[B]Jan.3/14:[/B]
- Moved "Introduction" to post #2 - ran out of room in post #1
- Added "GPU Voltage Table" section to the "Kernel Tweaks" section in post #1
- Uploaded a copy of the scripts I use - download and remove the .txt appendage to use - see my guide to writing init.d for application instructions
[B]Jan.2/14:[/B]
- Added "CPU Voltage Table" section to the "Kernel Tweaks" section in post #1
[B]Dec.30/13:[/B]
- Added "Disable Boot Animation" section to post #3
[B]Dec.27/13:[/B]
- Updated links to descriptions of governors/schedulers as they were out of date
- Added "Noozxoide Settings" section to post #3
- Added "Optimal TCP Congestion Algorithm" section to "TCP/IP Protocols and Congestion Algorithms" in post #3
- Added note to "Remap Dock Keyboard" section
- Cleaned up "Data2SD/ROM2SD" section
[B]Dec.26/13:[/B]
- Added "Remap Dock Keyboard" section to post #3 - thanks berndblb!
[B]Dec.23/13:[/B]
- Added "TCP/IP Protocols and Congestion Algorithms" to Appendix
- Went through and edited entire guide several times over to make everything as clear and easy to read as possible
[B]Dec.19/13:[/B]
- Added "I/O Tweaks" section
- Updated "Introduction" section (disclaimer)
- General cleaning, editing, clarification
[B]Dec.17/13:[/B]
- Cleaned and updated "Data2SD/ROM2SD" section - thanks _that and Thibor!
- Updated "Caution" section
[B]Dec.16/13:[/B]
- Tested CROMi-X 5.2.3, updated guide to reflect new changes - thanks sdbags!
- Changed "Introduction" section significantly
- General editing, cleaning, and reorganizing - simpler, more concise, easier to understand :)
[B]Dec.15/13:[/B]
- Added max_normal_freq tweak to "Interactive Governor Tweaks" section
- Added scaling_min_freq tweak to "Frequency Table Tweaks" in the "Kernel Tweaks" section
- Moved "CrossBreeder Mod/Ad Blocking" section to post #3
- Fixed typo in "Set CPU Freq Caps" in the "CPU/GPU Freq Caps" section - first line editing core 2/3/4 were improperly labelled as core 1 - copy/paste error, sorry guys
[B]Dec.14/13[/B]
- More editing - Arghhhhhh!!!
- Added "CROMi-X Installer Options" and "Disabled Apps" sections to post #3
- Updated "Special Thanks" section in post #3
- Updated "CPU/GPU Freq Caps" section - dual/quad core modes are no longer needed to increase utilization of the entire freq table - better performance without hurting efficiency or battery life
- Added quadrant scores to "CPU/GPU Profiles" section
- Reorganized "Interactive Governot Tweaks" section - ready to add the most powerful governor tweak thus far
[B]Dec.13/13[/B]
- Added "Disclaimer" section in "Intro"
- Updated Post #2 and #3
- More editing
[B]Dec.12/13:[/B]
- General cleaning, reorganizing, editing
- Ready for more tweaks
[B]Dec.6-11/13:[/B]
- And the updating begins...
- Updated "Introduction", "Basics", "Data2SD/ROM2SD", and "CrossBreeder/Ad Blocking" sections
- Updated "CPU/GPU Profiles" and "Stock (Interactive) Governor Tweaks" section
- Added "Hotplug Config" Section
SPECIAL THANKS:
This guide would not have been possible without the support of the xda community. I would like to take this opportunity to thank the community at large for all of your support. I would also like to formally thank the following individuals:
@Dees_Troy for bringing TWRP to our device.
@scrosler for the original CleanROM.
@clemsyn for his awesome kernel development.
@sdbags for CROMi-X and his incredible support.
@Hundsbuah for Hundsbuah's Kernel and explaining the inner-workings of kernel tweaking.
@_that for ROM2SD, kernel development, and his incessant need to challenge everything that I do. Thank you for helping keep my brashness in check, tolerating my lack of knowledge, and explaining rather than simply lecturing.
@Mistar Muffin for Data2SD
@idcrisis and @fivefour for their CrossBreeder Mod and sticking it to the man.
@buhohitr for the essential. support he provided during my initial foray into the "Android Development" section
@LetMeKnow for GPU fps unlocking, Disable_Journal.zip, sharing his results, and general support.
RESEARCH AND TESTING:
In order to evaluate a tweak I conduct experiments using a pretest-posttest design, which involves comparing mean pretest/posttest scores within and between a test group and a control group. Both groups are subjected to testing before the application of the experimental manipulation to establish an estimate of baseline performance in the measure of interest. Following pretests the experimental manipulation is applied to the test group while the control group is left constant. Posttest measures of both groups are then made. The mean score of both groups in pretests and posttests are calculated. To evaluate the overall effect of the experimental manipulation mean posttest scores are compared between the test and control group. If mean scores in the test group are greater than the control group then it is likely that the experimental manipulation was effective. Statistical hypothesis tests are needed to validate the comparison by ensuring within group variability does not exceed between group variability. If within group variability is higher than between group variability we cannot be sure that our mean scores are actually different. The pretest posttest design gives us the ability to evaluate changes within both groups as well. This is done by comparing mean pretest to protest scores within each group. If the control group made statistically significant improvements between the pretest and posttest this decreases our confidence in the validity of our between group comparison; unless the change within the control group can be accounted for. To create a test and control group ROM2SD was used to install two seperate systems on the same microSD card (32GB Sandisk UHS-1). One install was utilized as the control group, the other was utilized as the test group. Both setups were exactly the same in all respects to ensure accurate comparisons of mean test scores. The tweak being applied represents the experimental manipulation. Each tweak was tested in a separate experiment on a clean system. In between blocks Sd Maid was used to clear caches and junk files and dalvik/cache were cleared via TWRP. Various benchmarking and system monitoring tools were used to measure performance. While benchmarking and system monitoring tools are great they are not perfect. Thus, the effect of each tweak was subjectively tested in real world use for 3 days at minimum. Generally speaking I do not put much faith in others' subjective opinions; however, I make sure I know exactly what to look for with respect to a tweaks impact on performance. This is the point where I ask you to momentarily suspend disbelief, take my word for it, and try these tweaks for yourself. If you think I am nuts after all the more power to you.
Additional Resources
APPENDIX - USEFUL RESOURCES/TWEAKS/MODS:
CROMi-X INSTALLER OPTIONS:
I select the following options during the CROMi-X installation process:
DPI - 200
Launcher - Apex Launcher
Sound Manager - X-Loud Audio Mod (Noozxoide)
Tweaks - Browser2RAM, Zip Align .apks
Apps - AdAway App
Hard Core Tweaks - Force GPU Rendering
DPI Settings:
DPI, or dots per inch, determines how images are rendered across the pixels on your display. Setting DPI to a lower value results in content looking smaller. Changing DPI settings will not impact performance. 240 DPI is standard for most tablets because it makes things easiest to see/use for the widest number of people. 200 is better if you use your tablet as a laptop replacement because more content can be displayed at any given time.
Launcher:
I suggest using Apex Launcher. It has great features that extend functionality if desired. The UI is also incredibly customizable and can be stripped down to the bare essentials. Disabling features and cleaning up the UI is more important to me than adding features. Apex also won an award for top 5 apps in 2012 from xda. Make sure you select "Lock launcher in memory" in Apex's "Advanced Settings".
NOOZXOIDE SETTINGS:
The optimal noozxoide settings depend on the speakers you are using. I am utilizing the following settings for our tablets built-in speaker.
Noozxoide Xlimiter Processor:
- Compress and reduce overload for smooth audio - Enabled
- Select Effect Strength - Hard
Noozxoide Balanced X-EQ Processor, Noozxoide Maxxbass Processor:
- Deliver balanced natural soundstage and premium bass - Enabled
- Digital Presets - Cinema
- Noozxoide VE-Engine - Stongest
Noozxoide Logic Surround ES Processor:
- Create VSUR on practical monitors and widen the soundstage - Enabled
- Create Room Size - Live
CROSSBREEDER MOD/ADAWAY APP:
The CrossBreeder Mod utilizes 5 techniques to reduce lag. See the CrossBreeder mod link in post #1 for further details. From my experience it noticeably improves web page loading speed and the responsiveness of apps relying on mobile networks. It also completely removes ads instead of covering them with the "Web Page Not Availabe" dialogue. In order to enable ad removal you will need the CrossBreeder mod and AdAway app (obtained via the CROMi-X installer or the following link - http://forum.xda-developers.com/showthread.php?t=2190753).
Step #1 - Enable CrossBreeder:
If you did not install CrossBreeder during your system installation download the CrossBreeder mod and move it to your external storage. Boot into TWRP and install CrossBreeder (if you are flashing to a microSD make sure device nodes are set correctly). Wipe cache/dalvik and reboot.
Step #2 - Disable CrossBreeder's Governor & I/O Tweaks:
The CrossBreeder mod implements governor and I/O tweaks that may interfere with the application of the tweaks in this guide. To disable CrossBreeder's governor and I/O tweaks open a root explorer and navigate to the following file:
/system/etc/CrossBreeder
Next remount the /system partition as rewritable (see "Step #5 - Enable Your Script" in my guide to writing init.d scripts for details - http://forum.xda-developers.com/showthread.php?t=2198510). Once your /system partition is mounted as rewritable locate the following files:
/system/etc/CrossBreeder/START_TWEAKING_GOVERNOR
/system/etc/CrossBreeder/START_TWEAKING_IO
And change their name to:
/system/etc/CrossBreeder/STOP_TWEAKING_GOVERNOR
/system/etc/CROssBreeder/STOP_TWEAKING_IO
Step #3 - Enable AdAway App:
Once you have rebooted open the AdAway app. Select "Download Files and Apply Ad Blocking". Reboot your system when prompted. All ads should now be completely removed.
REMAP DOCK KEYBOARD:
To remap the dock keyboard we need to edit the following file using a text editor:
/system/usr/keylayout/asusdec.kl
I suggest backing up this file to an additional location before you begin editing. To remap a particular key simply delete the function to the right of the key's number and replace it with the desired function. Once you are done editing save the file and reboot your tablet.
EXAMPLE:
key 142 SLEEP WAKE UNLOCK
key 142 FORWARD_DEL WAKE UNLOCK
NOTE - Invoking the APP_SWITCH function opens the recent apps menu.
NOTE - The files below asusdec.kl contain the keyboard mappings for various external keyboards (ex - generic PC keyboards). I suggest checking out these files as they contain numerous functions that can be remapped to our keyboard dock (ex - escape).
NOTE - For a list of useful keyboard shortcuts see the following thread - http://www.transformerforums.com/fo...list-shortcut-keys-keyboard-dock.htmlhortcuts
DISABLE APPS:
Disabling the following apps will not impact basic functionality, cause instability, or boot looping. However, I primarily use my tablet as a laptop replacement; therefore, I offload many functions that I find better suited to my phone (ex - location based anything, lockscreen, daydream, etc).
Asus Battery
Asus Sync
Basic Sleep Mode Apps
Bluetooth Share
Calculator
com.android.backupconfirm
com.android.lockscreen
com.android.providers.partnerbookmarks
com.android.sharedstoragebackup
com.asus.pcsynclauncher
com.asus.quicksearch
com.asus.youtubesearch
com.google.android.voicesearch
Gallery
Google Backup Transport
Google Partner Setup
Google Search
Google Text-to-speech Engine
Live Wallpaper Picker
Market Feedback Agent
Mobile Data
Mobile Network Configuration
MusicFX
Network Location
Photo Screensavers
Search
Search Applications Provider
Setup Wizard
Setup Wizard
Sound Recorder
Talkback
User Dictionary
Wi-fi Direct Share
DISABLE BOOT ANIMATION:
Disabling the boot animation significantly reduces heat production and battery consumption brought about by the boot sequence. Core temperature ranges between 44-46 degrees celsius following a cold boot with the boot animation enabled. Core temperature ranges between 38-40 degrees celsius following a cold boot with the boot animation disabled. To disable the boot animation add the following line to the bottom of your build.prop file (found in the /system directory) using a text editor:
debug.sf.nobootanimation=1
DISABLE EXT4 JOURNALLING:
The ext4 file system utilizes journalling as a safeguard against data loss. A journalling file system keeps track of write operations in a journal before committing them to storage. In the event of a shutdown brought about by a system error it is possible for write operations to be interrupted, which may introduce inconsistencies in the file system. Instead of doing an entire file system check the journal is examined for write operations that were potentially interrupted. Thus, journalling allows ext4 file systems to quickly recover from crashes as entire file system checks can be avoided. However, write operations cannot be executed until the journal is updated and actively maintaining a journal requires memory and processing resources. Therefore, disabling journalling is advantageous from a performance perspective. I have found that disabling journalling reliably produces an increase in performance. To test I ran through 5 trials in Quadrant with journalling disabled and 5 trials with journalling enabled. On average disabling journalling increased total score by 88.2 points. The minimum and maximum total scores out of 5 trials were also much higher with journalling disabled. These results suggest that disabling journalling is a reliable way to improve performance. Follow the steps below to disable journalling:
Step #1:
Download Disable_Journal.zip (credit - @LetMeKnow) from post #1 and move it to your microSD card.
Step #2:
Boot into TWRP and install Disable_Journal.zip (if you are flashing to a microSD make sure device nodes are set correctly). Wipe cache/dalvik and reboot.
DISABLE LOGGING/LOGCAT:
Logcat, the android logging system, provides a mechanism for collecting and viewing system debug output. Various logs from applications, portions of the system, and kernel are recorded in logcat so that users can debug system failures/crashes brought about by errors in processes. Thus, logcat can be an incredibly useful tool for developers, testers, and advanced users. However, maintaining logcat involves recording thousands of lines of data as processes are executed, which requires system resources. Despite logcat's usefulness as a debugging tool it negatively impacts performance. To test I ran through 5 trials in Quadrant with logcat disabled and 5 trials with logcat enabled. On average disabling logcat increased total score by 20.2 points. The minimum and maximum total scores out of 5 trials were also higher with logcat disabled. Therefore, disabling logcat is advantageous for users who do not require advanced debugging capabilities. To disable logcat add the following line to you init.d script:
rm dev/log/main
I/O SCHEDULER TWEAKS:
The following tweaks improve I/O performance by modifying parameters that control the behaviour of the I/O scheduler. Detailed explanations can be found beneath each tweak.
iostats - 0
Disables I/O stats, which reduces overhead.
rotational - 0
Optimizes I/O scheduler behaviour for non-rotating storage. Scheduler no longer uses logic meant to reduce seek times.
rq_affinity - 1
Forces the kernel to process I/O requests on the CPU core that issued the request. Improves the effectiveness of CPU data caching.
nr_requests - 1024
Increases the size of the I/O request queue so that more requests can be sorted before execution.
read_ahead_kb - 6144
Increases the size of the read-ahead cache, which improves the reading of sequential data.
To evaluate the effectiveness of the above tweaks I compared mean R/W speeds of various file sizes following the application of each tweak. The above parameters represent independent variables (experimental conditions) and R/W speed, measured via Android Tuner, represents the dependent variable. I subjected each experimental condition to 5 trials to control for variability in test scores. In the first set of trials no tweaks were applied in order to establish a baseline measure of R/W speed (baseline condition). After establishing baseline performance each tweak was applied and tested in a sequential manner (experimental conditions C0-C4). Following trials the mean R/W speed of each file size was calculated for each experimental condition. In order to compare the impact of each tweak the total mean R/W speed of each experimental condition was also calculated. Global R/W speed increased sequentially following the application of each experimental manipulation. These results suggest that all of the aforementioned tweaks have a positive and measurable impact on I/O performance. You can find an excel chart detailing my results at the following link - https://www.dropbox.com/s/ezkbenk1ruql9rt/Lucius.Zen - Scheduler Tweaks Data.xlsx?m=.
To apply the above tweaks add the following lines to your init.d script:
MMC=`ls -d /sys/block/mmc*`;
for i in $MMC;
do
echo "0" > $i/queue/iostats;
echo 0 > $i/queue/rotational;
echo "1" > $i/queue/rq_affinity;
echo 1024 > $i/queue/nr_requests;
echo "6144" > $i/queue/read_ahead_kb;
done;
echo "6144" > sys/devices/virtual/bdi/179:0/read_ahead_kb
TCP/IP PROTOCOLS AND CONGESTION ALGORITHMS:
TCP/IP is a core set of communication protocols used to transfer data over the Internet and similar networks. IP packets are the vehicle devices use to transfer data between an application program and a web host. They are comprised of a header, which contains the source/destinatin address (among other things), and a payload, which contains the actual data. TCP, part of the transport internet layer, provides intermediate communication between an application and a host. When sending large chunks of data a program can issue a single request to TCP instead of breaking down data into a series of IP packets and requests.
Due to network congestion and other factors IP packets are often lost. TCP maintains the ordered delivery of packets by detecting packet loss, requesting retransmission, reordering data, and minimizing network congestion. When a host receives a stream of packets it reassembles the data into the sequence that was originally sent. Once the receiver confrims the soundness of the data it sends a packet acknowledging its retrieval. To avoid overloading the connection between a program and a host this aknowledgement must occur before more packets can be sent/recieved.
For each connection TCP maintains a congestion window. The TCP congestion window is maintained by the sender and is used to prevent network congestion/overload due to packet loss. When packet aknowledments are received the size of the TCP congestion window increases exponentially until a timeout occurs or the receiver reaches its bandwidth limit. Thus, as more packets are acknowledged the maximum segment size (specifies the largest amount of data in a single TCP segment) of the congestion window becomes larger; every round-trip time the maximum segment size effectively doubles. A mechanism called "slowstart" controls the maximum segment size of the TCP congestion window. To prevent network overload TCP congestion avoidance algorithms modify TCP window size, "slow-start", and the slow-start threshold. Thus, TCP congestion avoidance algorithms have a significant impact on the speed of packet delivery between an application program and a web host.
Optimal TCP Congestion Algorithm:
NOTE - CROMi-X Users - The following tweak is applied by default in CROMi-X.
My research and testing suggests that "lp" is the optimal TCP congestion algorithm. Although "westwood" produces marginally higher download/upload speeds (see the following post - http://forum.xda-developers.com/showpost.php?p=48088128&postcount=1884) "lp" results in a stronger connection between an application and a host; which is indicated by fewer timeouts, lost connections, and more responsive web browsing. This leads to the best overall user experience. To change your TCP congestion algorithm to "lp" add the following line to your init.d script:
/system/xbin/sysctl -w net.ipv4.tcp_congestion_control=lp
I salute you just for write this up. Thanks!!!! :good::good:
Thank you very much for this very detailed guide :good:
Thanks so much for this write up :good: just one question with regards to vsync, there seenms to be a lot of people that have experienced battery drain and/or screen tearing (especially during gaming) when disabling vsync, have you noticed this with the tf700?
yew123 said:
Thanks so much for this write up :good: just one question with regards to vsync, there seenms to be a lot of people that have experienced battery drain and/or screen tearing (especially during gaming) when disabling vsync, have you noticed this with the tf700?
Click to expand...
Click to collapse
I cannot report on the effects of disabling vsync on gaming because I do not play on games on my tablet. I havent experienced excessive battery drain or screen tearing during any benchmarks or stress tests that ive used. I dont experience any while watching a 1080p youtube video in a floating browser while reading multiple articles on the web with lots of pinching and zooming. If i were going to ever experience screen tearing, I imagine that would do it lol.
lucius.zen said:
I cannot report on the effects of disabling vsync on gaming because I do not play on games on my tablet. I havent experienced excessive battery drain or screen tearing during any benchmarks or stress tests that ive used. I dont experience any while watching a 1080p youtube video in a floating browser while reading multiple articles on the web with lots of pinching and zooming. If i were going to ever experience screen tearing, I imagine that would do it lol.
Click to expand...
Click to collapse
Thanks, will give it a try.
I'm pmr there is an option for compressed ram, what choice do you use?
Sent from my MB865 using xda app-developers app
yew123 said:
Thanks, will give it a try.
Click to expand...
Click to collapse
I don't think you can disabled vsync on tf700. Even if you disable vsync in PMR it does nothing.
Great guide. Is there any way of making a flash able zip so we don't have to re do it all when we upgrade rom?
Sent from my Xperia S using XDA Premium HD app
ishamm said:
Great guide. Is there any way of making a flash able zip so we don't have to re do it all when we upgrade rom?
Sent from my Xperia S using XDA Premium HD app
Click to expand...
Click to collapse
+1 and an uninstall zip
Sent from my ASUS Transformer Pad TF700T using xda premium
Where exactly in the internal storage do the zip files for apps go if you have data2sd enabled?
---------- Post added at 05:06 PM ---------- Previous post was at 04:46 PM ----------
And has anyone else had an issue where the network tweaks cause your Wifi to be disabled? I had to stop using them because of this.
gvsukids said:
I'm pmr there is an option for compressed ram, what choice do you use?
Sent from my MB865 using xda app-developers app
Click to expand...
Click to collapse
Only tweaks that are included are mentioned. Dont implement zram compression. Its an old optimization meant for lower end devices. It will reduce performance rather than improve it.
buhohitr said:
+1 and an uninstall zip
Sent from my ASUS Transformer Pad TF700T using xda premium
Click to expand...
Click to collapse
I include instructions on creating rescue packages in my guide, i will upload my .zip for PMR today.
primaleph said:
Where exactly in the internal storage do the zip files for apps go if you have data2sd enabled?
---------- Post added at 05:06 PM ---------- Previous post was at 04:46 PM ----------
And has anyone else had an issue where the network tweaks cause your Wifi to be disabled? I had to stop using them because of this.
Click to expand...
Click to collapse
I include instructions on how each partition and storage point is mounted in data2sd, see the "Note" at the end of Step #3.
buhohitr said:
I don't think you can disabled vsync on tf700. Even if you disable vsync in PMR it does nothing.
Click to expand...
Click to collapse
It doesnt have any impact on benchmark scores but I noticed flash elements in web pages were rendering faster with it enabled, especially when maximizing fullscreen flash videos. It used to take 3 sec for the GPU to render a streaming flash video when switched to fullscreen, now it takes around .8s.
I used to hate using flash. Which sucks, bc i use flash a lot, so I have spent a lot of time trying to optimize web browsing and flash. It still isnt perfect, but at least performance and stability are comparable to a laptop now. It just works better. At least it does exactly what you expect, no more errors, or unresponsiveness. The experience of consuming media over the web is much better overall after implmenting all my tweaks.
IF YOU HAVE A QUESTION, PLEASE REREAD THE INSTRUCTIONS IN DETAIL BEFORE ASKING IT.
I have answered 4 questions already that I really did not need to answer. The answers were already included somewhere in my guide. I dont mind answering questions, however, i wrote the guide with so much detail for a reason lol. The answers are there, please make sure you are thorough when reading my guide, I was quite throrough when I wrote it .
primaleph said:
Where exactly in the internal storage do the zip files for apps go if you have data2sd enabled?
---------- Post added at 05:06 PM ---------- Previous post was at 04:46 PM ----------
And has anyone else had an issue where the network tweaks cause your Wifi to be disabled? I had to stop using them because of this.
Click to expand...
Click to collapse
I havent had any network connection issues any my internet is terrible. I get a max download speed of 1.2 mb and only 50% signal strength in my bedroom. I have actually noticed wifi performance is better. Webpages open instantaneously, like apps do. Loading a new page in xda.com takes less than one sec, it basically happens instantly. Right now my signal is full strength, webpages are loading really fast, and streaming stuff is a pleasure. When I get my new phone I will definitely do up a video review on wifi performance and web browsing so you can see how fast web pages load.
ishamm said:
Great guide. Is there any way of making a flash able zip so we don't have to re do it all when we upgrade rom?
Sent from my Xperia S using XDA Premium HD app
Click to expand...
Click to collapse
I have had some issues creating a flashable .zip for PMR tweaks, the method I thought I could use doesn't work the way I anticipated. If I can figure this out I will post it, however, in the mean time it is really easy to apply the tweaks yourself. Now that I know which tweaks to apply it takes less than 5 min. Once youve done it twice you should have it memorized no problem
[KERNEL] [ROOT] [SM-N920T/W8 Exynos 7420] [19 February] SkyHigh TW 5.1.1 Kernel [ v4.5 ] [Synapse ++]
*** DEVELOPMENT & SUPPORT CEASED FOR 5.1.1 ***
WARNING
Code:
[COLOR="Red"]PLEASE SHOW RESPECT TO ACTUALLY [COLOR="PURPLE"][B]READ POSTS #1-3[/B][/COLOR]
[URL="http://forum.xda-developers.com/announcement.php?a=81"][B]XDA RULE #1 "SEARCH BEFORE POSTING"[/B][/URL] (GOOGLE, XDA & THREAD),
IF YOU DON'T LIKE A UP-FRONT "MATTER OF FACT" APPROACH,
[B]THEN DON'T BOTHER POSTING[/B]. [/COLOR]
FEATURES
Code:
* Based on official Samsung source: [URL="http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=F&searchValue=n920"]Samsung OSRC[/URL]
* ramdisk source: N920TUVS2COKC
* Compiled with Linaro gcc-linaro-4.9-2015.02-3-x86_64_aarch64-linux-gnu
* Linux 3.10.96
* [COLOR="red"]AUTO-ROOT binary v2.52[/COLOR] & Install busybox v1.24.1-Dorimanx
* [COLOR="Red"]KNOX WARRANTY VOID: 1[/COLOR]
* [COLOR="red"]SELinux PERMISSIVE[/COLOR] (for Titanium Backup and other apps to work correctly)
* adb insecure
* stock dt.img
* init.d script support (drop in script & set permissions to 755 or 777 and reboot)
* [COLOR="red"]DEEP SLEEP FIX[/COLOR]
* [COLOR="red"]IN-CALL REBOOT BUG "FIX"[/COLOR]
* Possible Screen Mirroring / AllShare Cast fix
* Secure storage = false (should prevent WIFI settings & passwords wiping on reboots)
* RAM management tweaks
* GearVR [U]reported[/U] working (depends on ROM/firmware version installed)
* [B]Synapse app support[/B] for many kernel configurations + more !!
* Many descriptions are in the app ! If you require more info, don't be lazy, please [B]SEARCH[/B] like I did ;)
SYNAPSE FEATURES
ABOUT
PayPal Donation link
SkyHigh kernel thread link
Up time
Total
Sleep
Awake
A57 CPU
A57 big Cores Frequency Scaling
live frequency
MAX: 2400 MHz (stock 2100 MHz is default)
MIN: 500 MHz (stock 800 MHz is default)
A57 VOLT
HPM voltage control
A57 big Cores voltage control
A53 CPU
A53 LITTLE Cores Frequency Scaling
live frequency
MAX: 1600 MHz (stock 1500 MHz is default)
MIN: 200 MHz (stock 400 MHz is default)
A53 VOLT
HPM voltage control
A53 LITTLE Cores voltage control
CPU GOV
CPU governors
interactive (default)
on-demand
conservative
ktoonservative (hotplug)
userspace
performance
Interactive governor live load at current frequency (A57+A53)
Interactive governor tuning (profiles)
Default
Battery
PerformanceTurbo Mode
A57 GOV
A57 governor tunables
A53 GOV
A53 CPU governor tunables
MULTICORE
HMP threshold tuning profiles
Default
Performance
Battery
HMP threshold controls for up/down migration
Power Aware Scheduling control
HMP LITTLE Packing
PEWQ (Power-efficient Workqueues) control
Exynos Core Control Interface (choose 5 > 8 cores online)
CPU STATS
CPU0 time in state
CPU4 time in state
BOOST
Input-Booster profiles
key
touchkey
GPU
GPU stats
Current clock freq
Live Frequency Utilization (load)
Time in state
GPU power policy control
coarse_demand (default)
demand
always_on
GPU frequency scaling
Max freq control to 852 MHz (700 MHz is default)
Min freq control to 100 MHz (stock 266 MHz is default)
GPU Governor
Default
Interactive (default)
Static
Booster (more graphic and benchmark performance)
GPU Interactive Governor tunables
highspeed clock
highspeed load
highspeed delay
GPU VOLT
HPM voltage control
GPU voltage control
THERMAL
Sensor temperatures
A57
A53
GPU
ISP
CPU thermal control
normal temp
critical temp
GPU thermal control
On/Off thermal manager
temp levels 1 > 5
throttling freq levels
Memory thermal control
normal temp
critical temp
ISP (Image Signal Processor) thermal control
temp levels 1 > 5
BUS
Memory Bus HPM voltage control
Memory Bus voltage control
Internal Bus voltage control
ISP (Image Signal Processor) voltage control
IO
I/O Schedulers
BFQ (tweaked for SSD)
DEADLINE (tweaked for SSD)
FIOPS
CFQ = default (tweaked for SSD)
NOOP
ROW (tweaked)
Storage read-ahead (256 KB)
General IO tuneable
Add random
IO stats
Rotational
No merges
RQ Affinity
NR requests
I/O scheduler tunables
MEMORY
Memory state
Total
Free
Low Memory Killer Profiles
Low
Medium
Custom (recommend)
Default (default)
Aggressive
Exterminate
Low Memory Killer minfree tuning (OOM LMK)
Adaptive Low Memory Killer
vmpressure_file_min
Samsung SPCM Service control (Enabled = default/stock)
Ultra Kernel SamePage Merging (UKSM)
UKSM stats
Scan Delay Interval
UKSM Governor
Max CPU consumption
Dynamic FSYNC control (enabled)
Dynamic dirty page writeback control (enabled)
Dirty writeback active
Dirty writeback suspend
Virtual Memory
Virtual NAND Swap control (VNSwap)
ZSwap memory pool
Adaptive Dirty Background Ratio on suspend / resume
Adaptive Dirty Ratio on suspend / resume
Drop caches (Clear VFS cache after boot)
Laptop Mode
Swapiness
Adaptive vfs_cache_pressure on suspend / resume
ADVANCED
Entropy (max 4096)
Gentle Fair Sleepers control (disabled)
Arch Power control (enabled)
randomize_va_space control
pm_freeze_timeout control
Google Play Services Battery Drain Fix
Driver wakelock controls
SensorHub
ssp_sensorhubSSP
sig_motion_sensor
pickup_gesture
grip_sensor
tilt_detector
proximity_sensorbcm4773
bcm4773_gps
POWER SUSPEND
Modes:
Autosleep
Userspace
Display Panel
Hybrid (Autosleep + Display Panel) = default
PowerSuspend State (enable only with Userspace mode set)
Version push button
AUDIO
(Sound Control by AndreiLux)
Jack media volume control
L/R channel volume
mono mixer
Speaker volume control
Earpiece volume
Main Equalizer
Advanced Stereo Equalizer
SCREEN
Live panel brightness
sweep2sleep control
NETWORK
TCP congestion control
All available enabled.
Default = westwood+
Screen mirror/allshare cast fix control (enabled)
Clean WIFI Lease
WIFI Passwords
Save
Restore
WiFi Power Mode While Screen-On/Off
Force Off
Off
Fast (default = screen ON)
Max (default = screen OFF)
WiFi DTIM Interval While Screen-On/Off
RX wakelock timeout control
TCP/IP network security
3G DNS speed & security tweak
Google
OpenDNS
Comodo, Level3
Norton_DNS
Smart_Viper
GPS time-zone
Original
Asia
Europe
Oceania
North America
South America
Africa
IPV6-protocol
IPv6 Test push button
IPv6 enable / disable
optimistic detection
SECURITY
KNOX control
NO_ACTION (default)
Disabled
Enabled
SELinux
Live status
BATTERY
Battery info
Charging controls
HV power supplies
A/C Mains
A/C Mains (screen-on)
Standard downstream port
Dedicated charging port
Charging downstream port
Accessory charging adapter
MHL power
Wireless power
Store Mode
enable / disable (master control)
Store Mode Maximum
Store Mode Minimum
Battery SCALING calibration (fuel gauge reset)
LED
LED disable control
LED Fade-in/out Time Period
LED Fade control
Fade-in
Fade-out
Test notification push button
Stop notification push button
FS (File System)
Display FS Type
FS Controls
remount System r/w r/o
remount RootFS r/w r/o
Scrolling cache control
Optimise Databases (SQLite3)
FSTrim lagfix
Wipe options
cache reboot
dalvik-cache reboot
cache & dalvik-cache reboot
Clean up
clipboard cache
/data/tombstones
/data/anr logs
/data/dropbox logs
lost+found
CORTEXBRAIN
Live status
Cortexbrain-Background-Process (Master Switch)
CortexBrain Functions
WiFi Auto
Media Manager
System-Tweaks
Kernel-Tweaks
nmi_watchdog
CRONTAB
Live status
CronTask (Master Switch)
Cron Tasks
Clean RAM cache (every hour)
Google Service restart (every 3 hours)
Clean app cache & junk (every day at 4:30AM UTC)
clipboard cache
/data/tombstones
/data/anr logs
/data/dropbox logs
lost+foundOptimize databases (every day at 4:40AM UTC)
File system trim (every day at 4:50AM UTC)
Battery scaling calibration (every Sunday at 5:00AM UTC)
Test Cron Task jobs
USB
USB status
USB mode selection
MTP
PTP
CD_ROM (drivedroid support)
USB_Keyboard-Mouse
MODULES
CIFS
NTFS
ISO9660_FS
UDF
XPAD
BACKUP & RESTORE
Name - Restore - Delete - Backup
profiles
kernel image
LOGS
Android Logger control (enabled)
LogCat
Kernel Logger control (enabled)
dmesg
last_kmsg
REBOOT
Reboot device
Recovery Mode
Download Mode
Power Off
Clear Synapse Data & Reboot
Restart Synapse
INFO
Reduced logging
exFAT FS support
NTFS R/W support with app
CIFS support (not tested)
ISO 9660 CDROM & UDF FS support
Frandom
mount partitions NOATIME and NODIRATIME by default
FSTrim on boot (ensure consistent IO throughput)
Entropy tweaks
Increased boot frequency
Power-efficient workqueue (PEWQ) efficiency patches
CLEANCACHE & ZCACHE
Microsoft X-BOX gamepad controller module (updated)
LZO de/compression algorithm
Slub tweaked
Much more - check source commits & Synapse
CREDITS
My family !!
@Chainfire - root & SuperSU / @Manh_IT - auto-root method
@AndreiLux - years of support for Exynos development and his various kernel features + Synapse app and UCI code
@halaszk88 - patches and Synapse code I adapted to many of my kernels
@dorimanx - BusyBox and various ramdisk tweaks/ideas
@apb_axel - I adapted and used many of the Synapse controls to suit my kernels
@arter97 - various source fixes/patches
@ktoonsez - ktoonservative hotplug governor
@LuigiBull23 - ktoonservative profiles I've adapted
XDA
Samsung OSRC
and many others!
check github source credits
IF I'VE FORGOTTEN ANYONE, PLEASE DON'T BE SHY AND SPEAK UP, THANKS
XDA:DevDB Information
SkyHigh Note 5 Exynos 7420 TMO Kernel, Kernel for the T-Mobile Samsung Galaxy Note5
Contributors
UpInTheAir
Source Code: https://github.com/UpInTheAir/SM-N920
Kernel Special Features: Synapse ++ | EXT4 | exFAT | NTFS | CIFS
Version Information
Status: Stable
Current Stable Version: 4.5
Stable Release Date: 2016-02-19
Created 2015-10-05
Last Updated 2016-03-04
Warning - ChangeLog - Requirements - Installation - Download - Source
** DISCLAIMER : FLASH AT YOUR OWN RISK **
WARNING :
Code:
[COLOR="Red"]* Under-volting can cause instability
* Over-clocking can cause freeze/reboot, heat & damage to CPU, GPU or other hardware
* Any customizations may void warranty
* May not be suitable for your device or customizations
* UpInTheAir is NOT responsible, the person you see in the mirror is !![/COLOR]
CHANGE-LOG
Open GitHub Change-Logs
Tap/click "Full Change log" under the latest version (i.e. v4.5)
Example: ALL commits (changes) for v4.4.1 > v4.5 are visible at the top section
Tap/click any commit and will display all comments in the top section and code changes in the bottom section for particular commit
REQUIREMENTS
Variant support for:
SM-N920T
SM-N920W8
Watch >>> THIS <<<
For BUG REPORTING: Stock UNMODIFIED TouchWiz (TW) 5.1.1 ROM (this means no Xposed or tweaks etc)
Custom recovery i.e.. TWRP
INSTALLATION
If you have systemless root installed, then you must REMOVE it as this kernel will auto-root a proven and stable 2.52 binary into system.
Open SuperSU app
Select "Full unroot" option
Reboot (or flash kernel)
Re-install SuperSU app
Uninstall any CPU control apps, tweaks and init.d scripts etc.
Recommend: Disable or remove KNOX (you can disable with Synapse once kernel is flashed)
Install Synapse app from Google Play and rate it ☆☆☆☆☆ !!
Device Settings:
Enable Developer Options > OEM UNLOCK
If flashing from previous SkyHigh kernel > Device settings > Applications > Synapse > Force Stop > clear data
If not installed > Install SuperSU from Google Play:
Boot into custom recovery and flash SkyHigh_kernel____.zip FOR YOUR DEVICE and reboot
After boot:
a) wait at least 120 secs to stabilize
b) Open Synapse
c) Tap "Understood"
d) DO this step so some defaults are set !!
1. tap the square menu button top right hand corner
2. tap the three dots button
3. "select all globally"
4. tap the back button next to it
5. apply
DOWNLOADS
Note5 SM-N920-T / W8 [ v4.5 ]
________________________________________________________________________
Note5 SM-N920P thread > HERE
________________________________________________________________________
OTHER Note5 international & dual SIM thread > HERE
________________________________________________________________________
S6 Edge+ SM-G928T / W8 thread > HERE
________________________________________________________________________
S6 Edge+ SM-G928C/F/G/I thread > HERE
________________________________________________________________________
S6 Edge+ SM-G928P thread > HERE
SOURCE
ALL KERNELS COMPILED WITH SAME SkyHigh SOURCE !!
Github
.
Help & FAQ
THREAD RULES & PROTOCOLS FOR THIS DEVELOPMENT THREAD:
I might not have your device variant and or able to reproduce your "issue". With this in mind, without providing as much information as possible, and resetting your device to a stable unmodified baseline, any potential troubleshooting or logs could be meaningless. So please follow the guidelines set out below. Thanks
BY POSTING YOUR ISSUES IN THIS THREAD, YOU ARE AGREE TO HELP YOURSELF FIRST BY PROVIDING INFO REGARDING:
Code:
1. DEVICE MODEL ?
2. ROM and firmware version (build number, boot-loader etc) ?
3. EXACT steps taken to reproduce YOUR issue
4. Screen-shots (if applicable)
5. Did you read Posts #1-3 completely?
6. Did you search the thread, XDA or GOOGLE?
7. Did you follow the install instructions EXACTLY?
8. What was your previous kernel?
9. Do you have any other known kernel tweaking apps, scripts or mods? ([B]remove them[/B]). [COLOR="Red"]This includes Xposed etc[/COLOR]
10. Try older kernel (if available)
11. Factory reset ?
12. Try latest stock [B]UNMODIFIED[/B] firmware (without custom ROM - if you have installed) and factory reset
13. Delete your ROM BusyBox (kernel uses it's own in /sbin)
ONLY IF YOU HAVE TRIED SUGGESTIONS ABOVE:
Turn on logging in Synapse and save logs AT TIME OF ERROR. AND post together with ALL the above information.
ELSE, DON'T WASTE MY TIME, YOU WILL BE IGNORED AND/OR POST REPORTED !!
THANK YOU :good:
NO FAST CHARGE
If using the pathetic original cable, try disconnect and reconnect the USB cable whilst power is still turned on to the charger
Use a thicker / better cable, will work every time (ie. Note4 OEM cable)
CAN I BUILD A KERNEL FOR YOUR __XX DEVICE ?
I will not build for any device that I can not compile using SAME source, personally test method or debug. Some device variants can compile with same source.
Sorry. I don't have the spare time for any more variant support.
"NO UCI SUPPORT"
It's a ROM busybox compatibility issue
Three choices:
Device > settings > applications > Synapse > force close & wipe data and REBOOT
OR
Remove your ROM busybox from /system xbin and /system/bin (Synapse will use the kernel busybox in /sbin).
Force stop Synapse and delete app data (device settings > applications)
Re-flash kernel as per Installation Instructions
OR
Try install a different busybox
Force stop Synapse and delete app data (device settings > applications)
Re-flash kernel as per Installation Instructions
Synapse or BACKUP/RESTORE ISSUES
It's a ROM busybox or sqlite3 compatibility issue
Remove both your ROM busybox & sqlite3 from /system xbin and /system/bin (Synapse will use it's own from kernel /sbin).
Device > settings > applications > Synapse > force close & wipe data
Reboot or re-flash kernel as per Installation Instructions
BACKUP & RESTORE
DO NOT restore profiles from different kernel version
Refer to THIS post for "how-to" screen-shots
Refer to THIS post for a "how-to" video (thanks @aldoblaga )
LOADABLE MODULES AREN'T WORKING
Check your /system/lib/modules directory. Are any ____.ko present?
Did you flash a ROM or wipe the system partition at any point? Doing this will remove them !
Re-flash the kernel will install the modules.
If modules aren't installed after flash, then re-flash and manually mount system in recovery first.
You can check running modules in terminal with:
Code:
lsmod
KTOONSERVATIVE GOVERNOR
Some info from the author: http://forum.xda-developers.com/showpost.php?p=60223338&postcount=3
DT2W & COLOUR CONTROL
No, I cannot make it work properly with single source for all supported variants
CPU POWER CONSUMPTION
The Samsung Exynos 7420 Deep Dive - Inside A Modern 14nm SoC (by ANANDTECH - Andrei)
F2FS SUPPORT
It's not needed. You wouldn't see any difference or measure much, if anything. Not worth the potential trade-off. This is not eMMC anymore
http://bgr.com/2015/03/17/galaxy-s6-storage-benchmarks/
STUCK ON SAMSUNG BOOT LOGO AFTER FLASH
Ensure you flashed the correct kernel for your device model
Ensure your download is not corrupted. Check MD5 hash or re-download
Your current base firmware (ROM, boot-loader version etc.) may be incompatible - UPDATE to latest with Odin and try again.
CM SUPPORT
Read Post #12
"Unauthorized actions have been detected, reboot to undo changes"
As it's a common warning found with all KNOX enabled android devices, you would have found the answer by Google search and also that it is actually unrelated to kernel and also unrelated to this kernel development..............
It is caused by the process of rooting/modifying your device. Unless you use KNOX, don't worry.
[Q] How to disable
[A] Freeze or delete your KNOX & Security related apps/processes manually (using root explorer or titanium backup (pro) or use Synapse > Security > disable KNOX
CAN I USE OTHER KERNEL CONTROL APPS
No, many features and options won't be available. Remove all other control apps to avoid conflicts !
Synapse is the recommended and has everything you need
BATTERY TIPS
Try some (or combination) of the CPU MULTICORE features in Synapse:
HMP profile = Battery
Power Aware Scheduling (slight performance cost) = Enabled
HMP LITTLE Packing (slight performance cost) = Enabled
PEWQ (power-efficient workqueue) (slight performance cost) = Enabled
Set A57 & A53 Interactive governor profile = Battery
Set Input-Booster for key/touchkey profile = Battery
Multi-tasking: enable UKSM & "low" or "quiet" profile (slight performance/battery cost)
Set all Advanced wake-lock controls to 1, except GPS. Set it to 4
Set WiFi wakelock control to 2 or 3
PERFORMANCE TIPS
Set A57 & A53 Interactive governor profile = Performance
Set A57 & A53 Interactive governor = Turbo Mode (battery cost)
Once in a while:
Optimize Databases
FSTrim
RANDOM REBOOT
Don't UV or UC CPU or GPU
Use SkyHigh defaults
Use a stock UNMODIFIED ROM for your device variant
No tweaks, Xposed or other CPU control apps installed
ASV_GROUP (ALL DEVICES ARE NOT CREATED EQUAL)
This is an example from my Exynos5420 source. Similar idea for Exynos420
http://forum.xda-developers.com/showpost.php?p=61579949&postcount=202
CAN I INCLUDE SkyHigh KERNEL IN MY ROM
Although I do appreciate your contribution here, if you could please do not include my kernel in any ROM package etc. This policy goes for anyone.
Having my kernel distributed outside my development thread just removes a lot of credit and more importantly, constructive user feedback that could be helpful to my development or user issue.
DOWNLOAD LINK NOT WORKING
I want to keep this project all in one place - ☆☆ NO MIRRORS ☆☆
Please try again in a few minutes
POOR CPU/GPU BENCHMARK or GRAPHICS PERFORMANCE
Disable any CPU MULTICORE options in Synapse
Disable any Battery profiles in Synapse. Set to default or Performance.
Allow the device to cool. Repetitive testing will heat the device hardware and invoke thermal throttling and lead to decreased benchmark.
HIGH CPU/GPU OC >> excessive heat >> thermal throttling >> reduced clock frequency >> DECREASE PERFORMANCE
DYNAMIC MANAGEMENT OF DIRTY PAGE WRITEBACKS
* [Christopher83]
This feature allows to have two different intervals for dirty page
writebacks and to dynamically manage them when the system has been
resumed (it's active) or when has been suspended.
Three new procfs parameters are exposed inside /proc/sys/vm path:
- dynamic_dirty_writeback is the activation status of this feature,
set 1 to enable it, set 0 to disable it and use the standard behaviour
- dirty_writeback_active_centisecs is the interval for the dirty page
writebacks when the system is active (screen on)
- dirty_writeback_suspend_centisecs is the interval for the dirty page
writebacks when the system is suspended (screen off)
This feature is in part inspired on Francisco Franco's patch:
https://github.com/franciscofranco/mako/commit/34d79548cf16b69c7d0154836018e7f258a22947
Click to expand...
Click to collapse
TCP/IP NETWORK SECURITY
* Thanks to zeppelinrox & V6SuperCharger
Hardening the TCP/IP stack to SYN attack
Bump up tw_buckets in case we get DoS'd
Ignore pings
Don't cache connection metrics from previous connection
Don't pass traffic between networks or act as a router
Enable spoofing protection (turn on reverse packet filtering)
Don't accept source routing
Don't accept redirects
- Further reading:
http://www.cyberciti.biz/faq/linux-kernel-etcsysctl-conf-security-hardening
http://www.symantec.com/connect/articles/hardening-tcpip-stack-syn-attacks
CHROMECAST - STREAMING PROBLEMS
* Thanks to @AtLmd Post
Lock screen MUST be enabled (simple screen lock swipe) I don't know why but it breaks the chromecast app's ability to resume smoothly if switched off
Synapse > Network > DTIM (both screen ON & OFF) = 1
Synapse > Network > WIFI Power Mode (screen OFF) = FAST
.
v1.4b released
v1.4b update for SM-N920-T device
Check out the change-log in Post #2.
Not tested because I don't use T-Mobile variant. I use a SM-N920-C
XDA RULE #1 'SEARCH BEFORE POSTING". Please READ Posts #1-3 BEFORE flashing !!
Bugs:
Still have the call reboot bug with N920C, but seems to be improved. Latest results of testing found in v1.2b release post
Have fun
Cheers
UITA
Will be running this today and let you know how it goes. Thank you very much for your time and work that you have done.
Install darthstalker last night with this kerner and I keep getting random restarts. Tends to happen more when making calls...
No sleep? ?
Random reboot. Rom:Breakdown 2.0
Last kmsg. Latest beta. Amazing battery life!
http://1drv.ms/1MUO22k
jpeps3 said:
No sleep? ?
Click to expand...
Click to collapse
I have sleep time. Sure there isn't an app keeping you up?
@UpInTheAir I'm glad to see you are at work on this kernel again. Welcome back! I hope your travels went well. Looking forward to seeing more of your work here.
dandroid7 said:
@UpInTheAir I'm glad to see you are at work on this kernel again. Welcome back! I hope your travels went well. Looking forward to seeing more of your work here.
Click to expand...
Click to collapse
I just don't have much time afraid. That's why I have to run the threads with a "matter of fact" approach. Particularly since I don't have your variant.
v1.5b released
v1.5b update for SM-N920-T device
Check out the change-log in Post #2.
Not tested because I don't use T-Mobile variant. I use a SM-N920-C
XDA RULE #1 'SEARCH BEFORE POSTING". Please READ Posts #1-3 BEFORE flashing !!
Bugs:
Random reboot during charge. Only rebooted at 100% during A/C charge on my SM-N920C device
Have fun
Cheers
UITA
Shaffer678 said:
I have sleep time. Sure there isn't an app keeping you up?
Click to expand...
Click to collapse
Who I find that out ??
jpeps3 said:
Who I find that out ??
Click to expand...
Click to collapse
Wake lock detector, or Better Battery Stats
UpInTheAir said:
v1.5b update for SM-N920-T device
Check out the change-log in Post #2.
Not tested because I don't use T-Mobile variant. I use a SM-N920-C
XDA RULE #1 'SEARCH BEFORE POSTING". Please READ Posts #1-3 BEFORE flashing !!
Bugs:
Random reboot during charge. Only rebooted at 100% during A/C charge on my SM-N920C device
Have fun
Cheers
UITA
Click to expand...
Click to collapse
Great kernel. Very good performance and battery life. Haven't had the random reboot issue but then again I only charge at night while sleeping.
Will flash new update tonight.
Thanks again for your work.
Sent from my SM-N920T using Tapatalk
I just installed this v1.5b kernel... I will give feedback tomorrow night sometime and let you know how it runs for me.
Thanks for all your hard work on this @UpInTheAir
This kernel run great on t-mobile variant but I can't call anyone...it lags while trying to call someone and once they pick up neither side can hear anything.
Sent from my SM-N920T using Tapatalk
lilviet93 said:
This kernel run great on t-mobile variant but I can't call anyone...it lags while trying to call someone and once they pick up neither side can hear anything.
Sent from my SM-N920T using Tapatalk
Click to expand...
Click to collapse
Can users please follow the development thread protocols and try a few things first. Example is top of Post #3 which you all would have read. I don't use your device variant, so I can't test the exact kernel build, neither can I read minds.
At the very least, details of your ROM and firmware need to be posted so others can give feedback on what is working and not.
Myself, have no issue on SM-N920C (H4 firmware), and with minmial searching found this piece of info from arter97. it may be applicable, maybe not.
http://forum.xda-developers.com/showpost.php?p=62742125&postcount=1303
You will need more feedback here so others may help build a BIGGER picture.
UpInTheAir said:
Can users please follow the development thread protocols and try a few things first. Example is top of Post #3 which you all would have read. I don't use your device variant, so I can't test the exact kernel build, neither can I read minds.
At the very least, details of your ROM and firmware need to be posted so others can give feedback on what is working and not.
Myself, have no issue on SM-N920C (H4 firmware), and with minmial searching found this piece of info from arter97. it may be applicable, maybe not.
http://forum.xda-developers.com/showpost.php?p=62742125&postcount=1303
You will need more feedback here so others may help build a BIGGER picture.
Click to expand...
Click to collapse
I kind of feel bad for you bro. If you expect these people to read I think your gonna be disappointed ?. Xda no longer makes people read or search. They all expect things handed to them. This is the majority these days. The old school guys is a dying breed.
UpInTheAir said:
Can users please follow the development thread protocols and try a few things first. Example is top of Post #3 which you all would have read. I don't use your device variant, so I can't test the exact kernel build, neither can I read minds.
At the very least, details of your ROM and firmware need to be posted so others can give feedback on what is working and not.
Myself, have no issue on SM-N920C (H4 firmware), and with minmial searching found this piece of info from arter97. it may be applicable, maybe not.
http://forum.xda-developers.com/showpost.php?p=62742125&postcount=1303
You will need more feedback here so others may help build a BIGGER picture.
Click to expand...
Click to collapse
No issues with that here. Followed all instructions (DUH) and no issues so far. Had one random reboot but that was because I accidentally OC and hit apply without realizing it, lol.
BACARDILIMON said:
I kind of feel bad for you bro. If you expect these people to read I think your gonna be disappointed ?. Xda no longer makes people read or search. They all expect things handed to them. This is the majority these days. The old school guys is a dying breed.
Click to expand...
Click to collapse
True that. It's getting harder and harder to type the same thing over and over again. They just don't want to fend for themselves.
Sent from my SM-N920T using Tapatalk
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Proto Kernel
Huawei Honor 9, P10 and P10+
This kernel is aimed for optimal relation between Performance and Battery on the Honor 9 and the P10 family.
It's built with Function and Optimization in mind, no mile-long list of Features and unnecessary Bloat.
P10/P10+ users should download appropriate version.
Users with CN versions (AL-00's, TL-00's, C636 Region and alike) must also download appropriate version (CN) or it will cause a major bootloop.
As of August 23rd, following recent Huawei decisions and intentional provocation of issues with custom firmware, EMUI 8 is only Officially supported up to B369. It will work with more recent versions up to September Patch but WE WON'T TAKE ANY BUG REPORTS FROM THEM.
OpenKirin 8.1 Roms and HavocOS-hi3660 are Officially supported, Compatible with other Treble 8.1 and 9.0 Projects BUT WE ADVISE STRONGLY TO BASE YOUR TREBLE ROMS ON B368 OR B369 AT THE MOST.
DISCLAIMER
I'm not responsible for bricked devices and nuked SD Cards or the inability of reading instructions. Unlocking bootloader, flashing kernels and such, voids your warranty. If you have any doubts or don't know what you're doing, SEARCH, READ and then ASK. And i can't and therefore won't respond to issues without logs.
FEATURES
- Compiled with Linaro AArch64 GCC 5.5 2017.10 and GCC 4.9 2017.01 (CN Versions) (ARMv8,A53 Optimized)
- Native ARM big.LITTLE CPU Driver while keeping Huawei's specific SMP Flow for Kirin SoC
- HiSi GPUFreq driver and Frequency Hopping Spread Spectrum feature
- UV (UnderVolt) on both CPU Clusters and GPU for better efficiency (All thanks to @nutcasev1.5)
- Energy Aware Scheduling (EAS) with "Schedutil" CPU Governor
- blu_active and blu_schedutil CPU Governors
- CAF CPU Boost driver and SchedTune Boost v3
- GPU Scene Aware (set as default)
- Maple, SIOPlus and Zen additional I/O Schedulers
- Aggressive GPU Suspend on Low Frequencies
- Swap and zRam disabled
- NTFS R/W Support
- Reduced Kernel Wakelock Sources by 90% in relation to Stock
- Advanced TCP Algorithms with "Westwood" Default
- Reactivation of the "setenforce" command
- Huawei's Analytics Engine disabled
- Capacitive Button Fix by @zxz0O0
- Wireguard VPN Support
REQUIREMENTS
- Unlocked Bootloader
For EMUI 8:
- TWRP Recovery - @zxz0O0 TWRP Mandatory for the H9
- EMUI 8 Stock Firmware up to B369 Officially Supported. Others may work.
For Treble 8.1 and 9.0:
- TWRP for 8.1 - Get it here -> Link
- You will have to place Zips on external SD because this TWRP can't decrypt internal storage.
- OpenKirin Projects and HavocOS-hi3660 Officially supported. Other projects should work as well.
ACKNOWLEDGEMENTS
- Huawei/Honor for the source code
- @osm0sis for the AnyKernel2 and AIK tools
- @zx2c4 for Wireguard
- @eng.stk for his awesome blu_active and blu_schedutil CPU Govs
- @franciscofranco for the small bits and pieces that just make things work
- @zxz0O0 for initial tips on EMUI8 boot structure and the Capacitive Button Fix
EAS DISCLAIMER
- It is possible, as reported on other device threads, that EAS may increase your active battery drain during the first 2 or 3 cycles of usage. This is normal. Just continue to use the device normally and it will tune itself to your use and battery life will stabilize afterwards.
DOWNLOAD H9
AFH
DOWNLOAD H9 CN
AFH
DOWNLOAD FOR P10/P10+
AFH
DOWNLOAD FOR P10/P10+ CN
AFH
XDA:DevDB Information
Proto8, Kernel for the Honor 9
Contributors
JBolho, nutcasev1.5
Source Code: https://github.com/JBolho/Proto
Kernel Special Features: EAS, UnderVolt, GPU Optimization, Persistent Spectrum Support, Wireguard
Version Information
Status: Stable - Final
Current Stable Version: 5.1F
Stable Release Date: 2018-10-24
Created 2018-04-21
Last Updated 2018-10-24
ProtoSSC, Changelog, Init.d Script and EMUI8 Theme
Q&A, Proto-Spectrum System Control, Proto init.d Script and Proto EMUI8 Theme
Proto-Spectrum System Control (ProtoSSC)
- Spectrum App - Google Play Link
- Spectrum System Control - AFH Download
"What is Spectrum and ProtoSSC?"
Spectrum, to put it simply, it's a quick and easy way of changing between Kernel settings oriented for 4 different scenarios, using pre-programmed profiles. More info? Check out the XDA link:
Spectrum App XDA Thread
Huge thanks to @frap129 for this work (and for Maple I/O too by the way)
ProtoSSC is a set of intructions that will give you full power over your system, completely eliminating Huawei's Management and Override Framework, replacing it with Spectrum-based Management, without having to mess around with files on internal storage.
Profiles are now built-in and are persistent after reboots (read notes)
ProtoSSC Instructions
First download the SSC flashable zip for your device file from the link above and place it on external SD card
Go to <root>/vendor/etc and delete the "perfgenius_boost_policy" and "perfgenius_config" XML files.
Go to <root>/vendor/bin/hw and rename (do not delete) "[email protected]" and "[email protected]" (just add ".bak" in the end)
Go to <root>product/etc/xml and delete the "uniperf_config_cust" XML file.
Go back to <root>/vendor and open the build.prop, find the lines "ro.config.hw_perfgenius" and "persist.sys.iaware.cpuenable" and change them from 'true' to 'false'.
If you were already using Spectrum, on your Internal Storage, delete the Spectrum folder, along with the profiles. Leave the Spectrum app installed.
Reboot to TWRP and flash the SSC file and reboot. (If you do not have Spectrum app installed, install it - Play Store link is above). Just give root permissions to the app and set whatever profile you want to use.
Every SSC Profile is now EAS based and separated by device family and was designed and tested for each purpose.
Every single profile has also some degree of underclocking, according to its design and purpose.
Therefore, we don't want to hear any noobs ranting about Antutu points.
Balance - Designed for normal everyday use. Best balance between performance and SOT.
Performance - Designed for more demanding use, heavy multi-tasking and heavy Camera usage.
Battery - Designed for the best Battery life while maintaining minimal settings to avoid lags. GPU and Big cluster capped to minimum frequencies.
Gaming - Specifically designed and tested for sustained performance with heavy 3D gaming.
IMPORTANT NOTES:
After a lot of headaches and trying to figure all this Huawei system out, with the precious help of people at fRom Future Roms TG Group, and of course the ProtoKernel Testing Team, we finally made the profiles 100% persistent, and CPU/GPU freqs will no longer be overriden by the system.
There is only one logic exception to this, and that is of course, the Thermal Engine. Suffice to say, we will never mess with this.
These devices are not gaming consoles, i've heard the complaints, and i adjusted Boost settings on Gaming profile to be less agressive and underclocked the Little Cluster as well. With highly demanding games it will heat anyway, but should be better now. I take no complaints regarding PUBG or hour-long gaming sessions.
What is the Proto init.d Script and how do i use it?
- The Proto init.d Script tweaks the TCP buffers to optimize Mobile Data performance and enables the USB Fast Charging by default.
The script is best used with Magisk and you have to place it under <root>/magisk/.core/post-fs-data.d or <root>/sbin/.core/img/.core/post-fs-data.d depending on Magisk version.
Download is attached to this post as a zip file.
There's a Proto EMUI8 Theme? Where do i get it?
Right this way! --> Download Proto Kernel EMUI 8 Theme
Put it on Themes folder on Internal Storage and it will show up on your Themes app.
"My device started to lag a bit, what's happening?"
- If this occasionally happens, you really should know that rebooting your device every other day is a good thing. Swap and ZRam are dead for good and i'm not bringing them back.
Enjoy!
Version 5.1F - 10.24.18 [Final Feature-Development Release]
- Upstreamed to Linux 4.4.159
- Disable Huawei's D.U.B.A.I. functionality (No More Analytics for the H Company)
- Optimize build for big.LITTLE (GCC 5.5 based version only)
- Full Rebase of EAS to AOSP
- Implement Schedutil Governor
- Port Blu_Schedutil from OP6 Blu_Spark Kernel
- Deprecate Sched Governor
- Fix and Implement WALT (Window-Based Load Tracking)
- Add Tuned Zen I/O Scheduler (Now part of SSC Balance Profile)
- Separate SSC Profiles between Honor9 and P10 family (avoids error spamming on init logs and tailored freqs)
- Update Wireguard
- It's recommended you use the Kernel along with SSC and the init.d Script
Older Versions:
Version 3.0R - 09.19.18
- Upgrade to Linaro GCC 5.5-2017.10 (Keep Linaro GCC 4.9 for CN versions)
- Upstreamed to 4.4.103 - Kernel now on par with stock K970
- Increased Buffer on GPUFreq driver
- Port HiSi JPEG Processing Engine
- Update Wireguard to 0.0.20180910
- Update on SSC - All profiles are now based on EAS with heavy frequency customization
- Revert Proto init.d Script back to v1 due to Huawei's poor implementation of Skia
Version 2.5R - 08.20.18 [GPU Supercharger Edition]
- GPU - Reduce TLB Pressure and Prevent Memory Fragmentation
- GPU - Port and Optimize HiSilicon GPUFreq Driver and FHSS GPU Feature
- GPU - Re-Tune Scene Aware and Disable D.U.B.A.I. Analytics on GPU Govs
- Update Wireguard to 0.0.20180809
- Optimize Async I/O for SSD Storage
- Disable HiSi PerfHub
- Minor FS Optimization
- Initramfs Optimizations
- Minor Memory Fragmentation Optimization
- Updated Proto init.d Script to v2
Version 2.0R - 06.29.18 - Major Milestone Update
- Upstreamed to 4.4.73
- New Optimal Timer Frequency - 156HZ Set as Default
- Go Tickless - Enable Full Dynticks System
- Power Efficient Workqueues can now be toggled
- Revert CPU DDR Link Enabling and other HiSi CPU Functions
- Keep Kirin Specific SMP Flow but move to ARM big.LITTLE CPUFreq Driver
- Reduce Kernel Max Wakelocks down by 90% relative to Stock
- Minor RAM and DevFreq Tweaks
- GPU Scene_Aware Tuned for Power Efficiency
- Minor Log Spam on CPU's Silenced
- Reduce Timeout to Stop Processes and Enter Sleep
- Optimized Sound Output Gains and Eliminate Rates below 16Khz
- Implement UKSM 0.1.2.6
- Upgrade SchedTune Boost to v3
- Major Update to Spectrum Profiles to accomodate new features as well
- Update Wireguard to 0.0.20180620
Version 1.7.1R - 06.02.18 - Minor Fix Version
- @zxz0O0 Capacitive Button Fix now included
- Update Wireguard to 0.0.20180531
Version 1.7R - 05.28.18
- Upstream to 4.4.63
- Implement USB Fast Charging Capability
- Minor Efficiency Tweaks to Sched, SchedTune CPU Boost and LMK
- Removed Sociopath TCP Algorithm (Not needed, performance similar to Westwood)
- Update Wireguard to 0.0.20180524 and make it built-in instead of module
- Updated Spectrum Profiles
- Introduction of Proto init.d script - Tweaks TCP and Enables the USB Fast Charging by Default
Version 1.6R - 05.19.18
- Upstream to 4.4.52
- Add FRandom RNG Driver
- Add Dynamic SchedTune Boost
- Update Westwood TCP Algorithm
- Add Boeffla Wakelock Blocker
- Fix for possible Entropy depletion
- Update Wireguard to 0.0.20180519
Version 1.5R - 05.10.18
- Add blu_active CPU Governor and CAF Boost driver for non-EAS users
- Enable CPUFreq DDR Link
- Enable HiSilicon Low Temp CPU Frequency Set
- Timer Frequency set to 300HZ
- Powersave, Userspace and Conservative CPU Govs no longer available
- Automatic Process Group Scheduling Support
- SMT Scheduler Support for Multi-Threading Optimization
- Disable Scheduler Logging to reduce Overhead
- GPU Scene Aware - Battery friendly balanced GPU management. OpenGL may suffer, Vulkan is favored.
- Add Powersave GPU Gov for users that really don't need any GPU performance
- Maple I/O Scheduler tuned and set to default
- ZRam Disabled
- Entropy Tuned for improved performance
- Add FSync Toggle capability
- Disable CRC checks
- NTFS File System R/W Support
- Enable CleanCache Driver
- Skip Kernel Sync on Suspend
- Disabled Huawei Root Scanner
- Add Sociopath TCP Algorithm
- Update Wireguard to version 0.0.20180420
Version 1.2R - 05.04.18
- Add Maple and Tuned SIOPlus I/O Schedulers (SIOPlus now default)
- Tuned CFQ and Deadline I/O Schedulers
- Updated Sched Governor to Kirin970 .103 Source
- Updated CPUFreq Drivers and Governors to Kirin970 .103 Source
Version 1.1R - 04.26.18
- [FIX] Knuckle Gestures now work
- Reverted Huawei Max Freq. Detection for Increased Granularity on "big" Cluster
- Sched Governor now tuned for faster Freq Ramp-Down - [This may affect Benchmark Performance but not device overall performance and/or behaviour]
Version 1.0R - First Official Release 04.21.18
- Linaro AArch64 GCC 4.9 2017.01 (ARMv8,A53 Optimized)
- UnderVolt CPU/GPU by @nutcasev1.5
- Activate built-in EAS and set "Sched" Governor as default
- Enable Kirin Hotplug Flow for big.LITTLE
- Enable Aggressive GPU Suspend on Low Frequencies
- Deactivated Swap
- Reduced Kernel Wakelocks by 50%
- Set CFQ as Default I/O Scheduler
- Renamed Interactive Gov to bypass EMUI Governor Overrides
- Set Westwood as Default TCP Algorithm
- Reactivated "setenforce" command
- Added Wireguard VPN Capability
YES! a custom kernel, will take a look at this with AOSP oreo.
You say it under volts the CPU, is it possible to allow CPU OC'ing, since the A73 cores can hit 2.6GHz according to ARM, but we get stuck with 2.4GHz?
ambitiousButRubbish said:
YES! a custom kernel, will take a look at this with AOSP oreo.
You say it under volts the CPU, is it possible to allow CPU OC'ing, since the A73 cores can hit 2.6GHz according to ARM, but we get stuck with 2.4GHz?
Click to expand...
Click to collapse
The frequency is there on the kernel CPU files but it's not being considered, and plus, the max frequency is locked by Huawei on a hardware config file on vendor partition that sets all kinds of parameters. So far, fortunately, we managed to get around the override on that file that forced "interactive" to be default governor, no matter what was set on kernel, or else, EAS with its Gov as default wouldn't be possible.
But tampering with the file itself is not an option at this point in time.
JBolho said:
The frequency is there on the kernel CPU files but it's not being considered, and plus, the max frequency is locked by Huawei on a hardware config file on vendor partition that sets all kinds of parameters. So far, fortunately, we managed to get around the override on that file that forced "interactive" to be default governor, no matter what was set on kernel, or else, EAS with its Gov as default wouldn't be possible.
But tampering with the file itself is not an option at this point in time.
Click to expand...
Click to collapse
Ah, ok, still nice anyway, maybe someone will find a way to get around this lock.
ambitiousButRubbish said:
Ah, ok, still nice anyway, maybe someone will find a way to get around this lock.
Click to expand...
Click to collapse
Time will tell. Huawei's manner of doing things is a bit tricky. They set one thing on the kernel but then override it on the rom, or on Vendor (because of Treble compatibility)
I'm still pissed at them for switching to 64bit audio drivers exclusively, which nukes the ability to use currently available audio mods.
so , hang on, on the AOSP rom, i am able to change the CPU governor, and it DOES have an effect (bench on interactive gave ~180000 antutu v7, on performance gave ~200000) so, is it a setting in vendor, if its in the ROM itself, then a custom ROM might allow modifications from the kernel to take an effect, though the ROM may have to exclusively support the feature.
ambitiousButRubbish said:
so , hang on, on the AOSP rom, i am able to change the CPU governor, and it DOES have an effect (bench on interactive gave ~180000 antutu v7, on performance gave ~200000) so, is it a setting in vendor, if its in the ROM itself, then a custom ROM might allow modifications from the kernel to take an effect, though the ROM may have to exclusively support the feature.
Click to expand...
Click to collapse
You misunderstood me. You can change the governor after boot with any kernel management app, that's not the question. (I use KA for example)
But if you do not use one of those apps, the governor by default is interactive, even if you go into the kernel code and change it to something else. (that's why we had to find a way to override that)
Also, that vendor file sets Performance as governor during boot, and sets different governors also when the device is charging.
oh, ok, yes, that makes sense
Use su.d or service.d for change govs or sched like you wish with time wait until process found.
I use this way for my mod .
My H9 have no values stock , cpu at Lmk and no kernel app
k1ks said:
Use su.d or service.d for change govs or sched like you wish with time wait until process found.
I use this way for my mod .
My H9 have no values stock , cpu at Lmk and no kernel app
Click to expand...
Click to collapse
That's not a user-friendly solution. It's not even a solution in itself when it comes to developing...
If I want my kernel to be set a certain way, I have the obligation to make it so, without telling users to follow extra steps... Furthermore, no user should be forced to root in order to have a kernel work as it is intended. This is flash-and-forget, no extra steps needed.
If a certain user doesn't want to use it as-is, then of course, they can install a kernel app or use your method to set things their way, but that's out of my control or responsibility.
JBolho said:
That's not a user-friendly solution. It's not even a solution in itself when it comes to developing...
If I want my kernel to be set a certain way, I have the obligation to make it so, without telling users to follow extra steps... Furthermore, no user should be forced to root in order to have a kernel work as it is intended. This is flash-and-forget, no extra steps needed.
If a certain user doesn't want to use it as-is, then of course, they can install a kernel app or use your method to set things their way, but that's out of my control or responsibility.
Click to expand...
Click to collapse
It's a solution anyway.
By the way, great to see a custom kernel here.
Good initiative.
k1ks said:
It's a solution anyway.
By the way, great to see a custom kernel here.
Good initiative.
Click to expand...
Click to collapse
Thank you!
In the meantime i've been looking through some files and there are things that may be possible to improve but require root access and "manual labor" since TWRP still can't flash stuff on certain partitions.
If i can validate them with my testing, they may end up as some form of "Optional Root-Only Additional Optimizations" but the goal should be to provide something that performs without extra work.
Anyway, any and all feedback is appreciated, this device has great potential.
Nice work bro.. Will definitely give it a try.. :good:
JBolho said:
Thank you!
In the meantime i've been looking through some files and there are things that may be possible to improve but require root access and "manual labor" since TWRP still can't flash stuff on certain partitions.
If i can validate them with my testing, they may end up as some form of "Optional Root-Only Additional Optimizations" but the goal should be to provide something that performs without extra work.
Anyway, any and all feedback is appreciated, this device has great potential.
Click to expand...
Click to collapse
What do you mean " TWRP still can't flash stuff on certain partitions " ??
Twrp flash well .
If you want some support for the optionnal root add.
Yes great potential , sadly Huawei does not do like the others.
k1ks said:
What do you mean " TWRP still can't flash stuff on certain partitions " ??
Twrp flash well .
If you want some support for the optionnal root add.
Yes great potential , sadly Huawei does not do like the others.
Click to expand...
Click to collapse
Last time I checked, it still couldn't mount system... But thanks for the suggestion, this is still a work in progress, Huawei's methods are a bit mind bending and we're still figuring out what works and what doesn't. But there's still much room for improvement, I'm sure.
JBolho said:
Last time I checked, it still couldn't mount system... But thanks for the suggestion, this is still a work in progress, Huawei's methods are a bit mind bending and we're still figuring out what works and what doesn't. But there's still much room for improvement, I'm sure.
Click to expand...
Click to collapse
Of course , for sure . Stille much.
About mount system , i can help.
My mod that I develop on G+ need to mount system and mount root img too and works perfectly.
Works on most Huawei devices , H9 , P9 , P10...
Twrp Oreo manage successfully this step.
New Magisk use another way to mount because .img is in /data/adb/**.
@JBolho your kernel is working on my P10 (VTR-L29c432 Oreo b365), it's pretty fast I'm impressed with it, great work!
Update: Wifi and Bluetooth not working.
Working great on latest 362 ROM with KangVIP341. Safetynet passed, setenforce supported. But I still can not make VIPER4ANDROIDFX work in any way. Also nandroid backup is impossible from latest TWRP 3.2.1-0 v3. Error 255.
This kernel work on honor 8 pro.