Database Info

Undervolt?

THIS THREAD IS MEANT FOR DEVS ON THE MATTER OF UNDERVOLT
According to the guy who made setcpu.
pershoot just changed the voltage used by adjusting the voltages (in mV) in the acpu_freq_tbl table in acpuclock-scorpion.c
So if we just edit the table in our own acpuclock-arm11.c(or acpuclock-arm11.c-OCing), that should give us undervolt?
It can't be that simple?
Code:
/* MSM7201A Levels 3-6 all correspond to 1.2V, level 7 corresponds to 1.325V. */
enum {
VDD_0 = 0,
VDD_1 = 1,
VDD_2 = 2,
VDD_3 = 3,
VDD_4 = 4,
VDD_5 = 5,
VDD_6 = 6,
VDD_7 = 7,
VDD_END
};
Thanks to kleranc for idea.
I should probably update this since it has been reincarnated for some reason. lol.
Regardless, this image will explain everything(thanks jus10o for the nice drawing):
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I have to be clear about a few things though:
Under my own testing, and from my own experiences; our processor isn't capable of exerting itself that much. So if you are using an undervolted kernel, it really only undervolts the higher frequencies as you can see in the table above. This is good and bad.
Good: Because you're not using that much juice from the battery and you keep a lower core temp
Bad: Because you may notice performance loss
It also has to be noted that not all processors will behave equally: you may experience no performance loss, or you may experience complete loss. It's a roll of the dice.
About lower frequencies and undervolting(from GSM Hero forum):
dipje said:
To all
Now, about the 'undervolting': A lot of talk and discussion has been going on in the kernel thread(s), and I think every kernel 'hacker' in the end ended up with pretty much the same frequency table and settings. Going lower than VDD_3 ended up in waking-issues or not-responding heroes. Some worked, most didn't. You see the ROMs here and there that used 19mhz and / or VDD_2 or lower now releasing updated versions with just a bit more juice and mhz during sleep, because some heroes really aren't waking up properly.
Or aging 7200 just needs a bit of juice apparently
Click to expand...
Click to collapse

Is the only benefit of undervolting better battery life?

Mr. Biggz said:
Is the only benefit of undervolting better battery life?
Click to expand...
Click to collapse
Well at higher-frequencies we'd benefit a lot on battery life. With just about everyone using Overclock kernels, this could really help out.
For some of us, battery life means a lot.

So phusson has a simple fix for dropping VDD levels.
Here
Name sounds familiar? Yeah he's the same guy who helped us get overlocking on our msm7k phones
So credit to him. Should have somthing ready by tomorrow.

if i am not mistaken lowering the voltage would increase the heat at high clock speeds. this is just a guess from my engineering background.

Kenpoman said:
if i am not mistaken lowering the voltage would increase the heat at high clock speeds. this is just a guess from my engineering background.
Click to expand...
Click to collapse
Yes it would increase the heat, but no substantially. Besides, we wouldn't decrease the voltage too much. Finding just a "safe" undervolt to conserve battery(if it exists).

figured i should update since this has been done...
http://forum.xda-developers.com/showpost.php?p=6885956&postcount=1041

Kenpoman said:
if i am not mistaken lowering the voltage would increase the heat at high clock speeds. this is just a guess from my engineering background.
Click to expand...
Click to collapse
Huh? Excuse me, but I have an engineering background too (materials science) and must have missed that lecture. What is the principle behind this? I'm really skeptical because I'm 99% sure from my years of PC modding experience that a lower voltage is synonymous with better battery life, longer life-time (opposite effect of over-volting), and lower temperatures.
There are no disadvantages other than instability, which only happens if your voltage is TOO low.
Edit: here's a source that backs my claim
http://forum.notebookreview.com/har...es/235824-undervolting-guide.html#post3183068

Sparticuz said:
figured i should update since this has been done...
http://forum.xda-developers.com/showpost.php?p=6885956&postcount=1041
Click to expand...
Click to collapse
But will this work on sense based ROMs? I know that the frameworks are different with AOSP ROMs. I've been wanting to do this for a while now but I have no expertise at all.

RE: c00ller
I have to agree with c00ller on this. As an engineer with a physics background, and more importantly, an avid PC overclocker, it is considered common knowledge that lower voltages produce less heat, decrease power consumption, and sacrifice stability at higher clock speeds.
Considering that some of our hero's can be clocked up to 768 mHz stable, undervolting should be doable to a reasonable extent. In fact, if somebody wanted to keep stock frequencies, ie up to only 528, a significant amount of undervolting could probably be accomplished.

foolforfood said:
But will this work on sense based ROMs? I know that the frameworks are different with AOSP ROMs. I've been wanting to do this for a while now but I have no expertise at all.
Click to expand...
Click to collapse
Check out my blue echo rom later tonight. Decadence just built me a boot.img for my rom with oc/UV at 710 oc and free autokiller built in. Ill upload tonight and its a sense based rom

Just for the sake of clarity:
Will this work on sense roms? (a simple yes or no will do)
Can this be worked into existing kernels?
If someone has a free second, if you want to throw the undervolting into darch's 710 kernel for fresh 2.3.3, i'll test it within 10 minutes of it being posted and throw my results out here.

Bradart said:
Just for the sake of clarity:
Will this work on sense roms? (a simple yes or no will do)
Can this be worked into existing kernels?
If someone has a free second, if you want to throw the undervolting into darch's 710 kernel for fresh 2.3.3, i'll test it within 10 minutes of it being posted and throw my results out here.
Click to expand...
Click to collapse
Read my post above urs. That's the exact kernal that will be in my rom just undrrvolted. I'm running it now and it work just great

That sounds good, but I'm really really happy with my ROM setup, and just want to add in a UV kernel. Nothing against you Papa, but is there any way to get a flashable zip of just the kernel?

foolforfood said:
That sounds good, but I'm really really happy with my ROM setup, and just want to add in a UV kernel. Nothing against you Papa, but is there any way to get a flashable zip of just the kernel?
Click to expand...
Click to collapse
Ill post it later. I'm at work right now and on my phone. I wasn't saying to use my rom. I was just saying it could be pulled from my rom once I add it tonight

Papa Smurf151 said:
Ill post it later. I'm at work right now and on my phone. I wasn't saying to use my rom. I was just saying it could be pulled from my rom once I add it tonight
Click to expand...
Click to collapse
Awesome, you're fantastic! I'll be checking that out tonight then. Thanks!

foolforfood said:
Awesome, you're fantastic! I'll be checking that out tonight then. Thanks!
Click to expand...
Click to collapse
Don't thank me...thank decadence

Papa Smurf151 said:
That's the exact kernal that will be in my rom just undrrvolted.
Click to expand...
Click to collapse
Papa: Since there are multiple versions of all of these kernels at this point, I just want to be clear...
Is the undervolted kernel that you're going to post a mod of the "DarchKernelv4 710mhz with Free Memory Tweak For Fresh 2.1.1/2.1.2/2.3.3" ??
Some people were reporting possible issues with the FreeMem Tweak and there was talking rolling back to v3...so, are you basing off of v3 or v4? And am I correct in thinking that's the right kernel family?

fwhite42 said:
Papa: Since there are multiple versions of all of these kernels at this point, I just want to be clear...
Is the undervolted kernel that you're going to post a mod of the "DarchKernelv4 710mhz with Free Memory Tweak For Fresh 2.1.1/2.1.2/2.3.3" ??
Some people were reporting possible issues with the FreeMem Tweak and there was talking rolling back to v3...so, are you basing off of v3 or v4? And am I correct in thinking that's the right kernel family?
Click to expand...
Click to collapse
That is the exact kernal and its v4. I've been running it for a few days with no issues with the freemem killer. Now its been undervolted and ill post tonight

Papa Smurf151 said:
That is the exact kernal and its v4. I've been running it for a few days with no issues with the freemem killer. Now its been undervolted and ill post tonight
Click to expand...
Click to collapse
Just to clarify kernel != ramdisk .
The kernel is #15 from darchdroid 2.7 from the uv.zip just thrown together with the ramdisk from 2.3.3. That equals the new boot.img.

What schedular and governor do you use in jellybean?

Hey all
as the topic states what governor and scheduler do you use for jellybean ? What settings? How's the battery life and performance? It seems like jellybean is different in how it uses the CPU compared to ICS
I'm currently using interactive and deadline and I only get 3.5 hour on screen...in ICS I used to get 4 to 5 hours
Sent from my Nexus S using Tapatalk 2

I've always stuck with ondemand. Suits my needs. I've never seen a dramatic change in battery between the OS upgrade.

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When I upgrade to JB these are the settings I'll use for ondemmand. The rest of my settings are in my signature.
Nexus S (GMS i9020a)
Paranoid (1.6 - 4.0.4)
Matrix Kernel (CFS - 20.0)
Ondemmand (800/200)
Deep Idle (Off - Noop)
Live OC - 100 (400/800)
BLX - 98 (Inverted Apps)

Interactive. Really nice and speedy!
Sent from my Nexus S using Tapatalk 2

Interactive
Faster with _thalamus' test22 than 23 for me
Sent from my Nexus S using xda app-developers app

I've never had good battery with Interactive.
Nexus S (GMS i9020a)
Paranoid (1.6 - 4.0.4)
Matrix Kernel (CFS - 20.0)
Ondemmand (800/200)
Deep Idle (Off - Noop)
Live OC - 100 (400/800)
BLX - 98 (Inverted Apps)

I plan on flashing thalamus' interactive or may wait until the next JB update from Adam . I heard its a actually better in some areas. If its done right, I don't think it would be too bad. Bugless Beast on GB had interactive as its stock governor and battery was great. I've used interactive on some kernels and it was god awful.
Edit: Just flashed. Wow.

Sent from my Nexus S

chronophase1 said:
I plan on flashing thalamus' interactive or may wait until the next JB update from Adam . I heard its a actually better in some areas. If its done right, I don't think it would be too bad. Bugless Beast on GB had interactive as its stock governor and battery was great. I've used interactive on some kernels and it was god awful.
Edit: Just flashed. Wow.
Click to expand...
Click to collapse
i got alot of radio dumps with jelly belly 0.1.4 so i flashed _thalamus' kernel test22 (interactive) and test23
i upgraded to 0.1.5 so far so good

So test 22 is actually better than 24? Got a link for 22?
Sent from my Nexus S using Tapatalk 2

i even can't change my governor in JB
are you using nstools for set your governor?
after using Jellybean, i dont know why i cant set the governor anymore..
the governor tab is just gray and stuck on my nstools.
i tried in air kernel and thalamus and they behave the same

Thalamus' kernel only has one governor. Try using another application, like SetCPU to change it for Air Kernel.

GianFahmi said:
are you using nstools for set your governor?
after using Jellybean, i dont know why i cant set the governor anymore..
the governor tab is just gray and stuck on my nstools.
i tried in air kernel and thalamus and they behave the same
Click to expand...
Click to collapse
Try fix permission in cwm
Sent from my Nexus S using xda app-developers app

what do you think guys ? noop . cfq or deadline ?

Deadline or noop are usually suggested for ondemand. Check out this thread for all this and more.
http://forum.xda-developers.com/showthread.php?t=1441905

GianFahmi said:
are you using nstools for set your governor?
after using Jellybean, i dont know why i cant set the governor anymore..
the governor tab is just gray and stuck on my nstools.
i tried in air kernel and thalamus and they behave the same
Click to expand...
Click to collapse
Fix permissions..
Sent from my Nexus S 4G using xda premium

Currently at 15hr 34min on battery with 29% left... only 1hr screen-on time... stock kernel included in cm10 ROM... I have everything turned on 4G, GPS, sync, etc... so to me, this is actually pretty good life... if I turned that stuff off I'm sure life would increase quite a bit...
Interactive gov
Noop scheduler
200/1200MHz
Sent from my Nexus S 4G using Tapatalk 2

I use the default "schedular" and default governor. I have a hint of an idea what a schedular does, and I roughly know what the governor does and why. That doesn't mean I have to change it. I have flashed quite a few ROMs and tried tweaks like omgwtfphonebooster V200. in 90% of the cases it just wasn't worth the trouble (You get a bit of placebo if you really believe in it but then that's it). So I have a question for you: Do you think you understand more about governors, schedulers and android OS than a proper dev either from google or here on XDA (like thalamus). Just because you can tweak almost every part of the system doesn't mean you have to . It's set to ondemand by default because ondemand does it's job very well.
Don't get me wrong I completely understand what you're doing, I did that myself for the past two years, because I thought yeah I know better than google and I must OC otherwise the phone is crap. I mean it can't run as fast on 1GHz as on 1.2GHz, the second nr. is obviously bigger so it must be better. I mean it's a phone, not a supercomputer or a gaming machine, get a PC for that or a stupid console if you have to.
I find my Nexus S runs very smooth on Stock with thalamus kernel, and it's not a constant rebooter. To be fair I'm not on stock but on CM10 because I'm addicted to voodoo sound + DSP manager, but that's a completely different story and I can actually hear the difference.

I'm actually glad thalamus put the voodoo sound add on to his kernel. That's all I felt was missing from it. And I agree. This phone is fast enough as it is. I understand a little bit about both, but I tend to just leave the scheduler alone since it's beyond my comprehension(for now). I've messed with a few governors here and there, but really don't care anymore. lol. I've just grown tired of it. Ondemand/interactive just work when done properly, as seen in a few kernels. I'd rather have something that doesn't reboot all the damn time than the fastest Nexus S on the block. But that's the glory of Android. Everyone can flash what they want pretty much to their heart's desire.

Aktifit said:
I use the default "schedular" and default governor. I have a hint of an idea what a schedular does, and I roughly know what the governor does and why. That doesn't mean I have to change it. I have flashed quite a few ROMs and tried tweaks like omgwtfphonebooster V200. in 90% of the cases it just wasn't worth the trouble (You get a bit of placebo if you really believe in it but then that's it). So I have a question for you: Do you think you understand more about governors, schedulers and android OS than a proper dev either from google or here on XDA (like thalamus). Just because you can tweak almost every part of the system doesn't mean you have to . It's set to ondemand by default because ondemand does it's job very well.
Don't get me wrong I completely understand what you're doing, I did that myself for the past two years, because I thought yeah I know better than google and I must OC otherwise the phone is crap. I mean it can't run as fast on 1GHz as on 1.2GHz, the second nr. is obviously bigger so it must be better. I mean it's a phone, not a supercomputer or a gaming machine, get a PC for that or a stupid console if you have to.
I find my Nexus S runs very smooth on Stock with thalamus kernel, and it's not a constant rebooter. To be fair I'm not on stock but on CM10 because I'm addicted to voodoo sound + DSP manager, but that's a completely different story and I can actually hear the difference.
Click to expand...
Click to collapse
i notice the difference in changing the scheduler and gov... for example... if i run my phone with interactive (like i am now) i get slightly better battery life than with ondemand... my preference is to run "wheatley" gov since i've ALWAYS seen the best in performance and battery with that gov... but most kernels don't add that in stock form... as for the scheduler... i run "noop" most of the time b/c my phone doesn't seem as stable running "deadline"... i have considerable lag when running deadline vs noop... as for OC'ing, that's sorta up in the air b/c i get great results and smoothness running it at 1000MHz... 1200MHz, i'm still trying to test if i notice a difference but so far its about the same, if not a little worse... i typically run it at 200/1000MHz and that works out wonderfully... 1400MHz is way too unstable for my phone even tho i definitely notice the speed increase!
you can't say that "tuning" our phones to suit our needs is trying to say that we know more than Google or the developers of this stuff b/c that's just false... we're tuning this stuff to OUR needs... they tune stuff for the safe side of things where most people won't have issues... it's just like tuning a car in a sense... manufacturers typically detune their cars to be on the safe/efficient side... take my old Civic Si (2006), i could safely rev it to 9000rpm but the default was set to 8300rpm even tho the parts could handle close to 10,000rpm before running a high risk of breaking... knowing the limits of our phone is the same thing... which is the purpose of this thread i'd assume!

[Kernel][ICS] TFQ Scorched Kernel ICS v1.0.29 (2012-12-21)

Team Fah-Q Presents...
Scorched Kernel for Blaze ICS v1.0.29
Built with the Linaro Toolchain v4.7, the purpose of this kernel is to fix bugs, add features, add performance, and hopefully save some battery where possible. However, battery life will most likely not be as good as stock, since the device is overclocked and DVFS (dynamic frequency and voltage scaling) is turned off. I have done my very best to squeeze every ounce of battery life out of this device.
It includes a brand new CPU Governor called Scorched, developed by me and based on the lagfree governor. It focuses on saving power and reducing the usage of the higher CPU frequencies unless necessary, while still keeping responsiveness and performance intact.
The kernel should work with any ROM that is derived from the stock Samsung ICS release IMM76D.LH5, however I recommend using it with the Tweaked ROM, as that is what I develop it against.
This is a kernel several months in the making. Hope you like it
It is STRONGLY advised to do a full nandroid backup in CWM before installing the kernel,
as the installer will overwrite kernel modules in /system/lib/modules. You've officially been warned
NOTE: This thread is reserved for bug reports, logcats, and other development related discussion. General discussion, questions, etc should be posted in this thread​Kernel Features
IO Schedulers:
zen (NEW)
vr (NEW)
sio (NEW)
deadline
cfq
noop
CPU Governors:
scorched (NEW)
lagfree (NEW)
interactive (NEW)
ondemand
conservative
userspace
powersave
performance
Other Features:
Overclocked to 1.72 GHz
Voltage control support
Support for init.d scripts, added automatically during installation of the kernel.
ZRAM support with Google Snappy compression, with a default size of 64 MB.
Other tweaks and fixes, too minor to note. Check the Google Code site if you're interested.
Credits/Thanks
withere2 - Endless testing, testing, ideas, more testing, scripting support, more testing. Did I mention testing?
erikmm - Pulling me into kernel development
showp-1984 - Lots of initial help getting off the ground with kernel development
faux123 - Some source code from his Samsung GS2 github repo

Changelog and Downloads
Changelog and Downloads
2012-12-21 - Version 1.0.29 - tfq-scorched-kernel-ics-1.0.29-signed.zip
ADB now runs as root. Not as easy as you might think to do it properly...
2012-12-17 - Version 1.0.22 - tfq-scorched-kernel-ics-1.0.22-signed.zip
Initial public release of kernel
Resolved issue with battery life. Standby time should be almost double that of version 1.0.20
The source code for this kernel can be found on Google Code:
http://code.google.com/p/scorched-kernel-t769-ics/
All previous release versions of the kernel can be found on the Scorched Google Code site
http://code.google.com/p/scorched-kernel-t769-ics/downloads/list

FAQ
FAQ
What is the Scorched CPU Governor?
The Scorched CPU governor is rather similar to the lagfree governor both in its source code and its purpose. The difference is that while lagfree seeks to give performance-on-demand by increasing immediately to the maximum CPU frequency, Scorched jumps immediately to a mid-point frequency and then gracefully increases or decreases the CPU frequency as required. This provides both performance-on-demand as well as extended battery life.

multi core support
is there anyway of changing it to were we have multi core support ( in regards to offlining 2nd 3rd etc cores ) to save battery by chance cause some other kernels ive tested have that capability if i knew how to do so myself ( im slowly learning with massive reprocussions lol ) but would that be possible at all

awesome finally some scorchness for the blaze

merwin said:
Changelog and Downloads
2012-12-17 - Version 1.0.22 - tfq-scorched-kernel-ics-1.0.22-signed.zip
Initial public release of kernel
Resolved issue with battery life. Standby time should be almost double that of version 1.0.20
The source code for this kernel can be found on Google Code:
http://code.google.com/p/scorched-kernel-t769-ics/
All previous release versions of the kernel can be found on the Scorched Google Code site
http://code.google.com/p/scorched-kernel-t769-ics/downloads/list
Click to expand...
Click to collapse
Many thanks for your hard work.
However I've been using this kernel for a couple of days now with tweaked 2.1, and deleted battery stats but my battery life is really poor.
I've left the system essentially in standby for several full charge cycles but I only get 10 hours with next to no use, if lucky.
With stock kernel and Blz3r v3 and with heavy usage I would easily get 14 hours.
I'm still going to keep on using it and characterizing it and hope it gets better.
Sent from my SGH-T769 using xda app-developers app

theshowman said:
Many thanks for your hard work.
However I've been using this kernel for a couple of days now with tweaked 2.1, and deleted battery stats but my battery life is really poor.
I've left the system essentially in standby for several full charge cycles but I only get 10 hours with next to no use, if lucky.
With stock kernel and Blz3r v3 and with heavy usage I would easily get 14 hours.
I'm still going to keep on using it and characterizing it and hope it gets better.
Sent from my SGH-T769 using xda app-developers app
Click to expand...
Click to collapse
Not sure what to tell you. I've attached an image with my stats on it. That's 7 hours, mostly standby, dropping 30%, with wifi calling, exchange sync, gmail sync all on.
And this is more of a general Q&A thread topic also

soldier1184 said:
is there anyway of changing it to were we have multi core support ( in regards to offlining 2nd 3rd etc cores ) to save battery by chance cause some other kernels ive tested have that capability if i knew how to do so myself ( im slowly learning with massive reprocussions lol ) but would that be possible at all
Click to expand...
Click to collapse
Please ask this in the general questions thread.

Using just CPU0
soldier1184 said:
is there anyway of changing it to were we have multi core support ( in regards to offlining 2nd 3rd etc cores ) to save battery by chance cause some other kernels ive tested have that capability if i knew how to do so myself ( im slowly learning with massive reprocussions lol ) but would that be possible at all
Click to expand...
Click to collapse
This app will let you use 1 core, both or link them together as one:​
PC Link: https://play.google.com/store/apps/...sMSwyLDEsInJzLnBlZGphYXBwcy5LZXJuZWxUdW5lciJd​

nickmcminn60 said:
This app will let you use 1 core, both or link them together as one:​
PC Link: https://play.google.com/store/apps/...sMSwyLDEsInJzLnBlZGphYXBwcy5LZXJuZWxUdW5lciJd​
Click to expand...
Click to collapse
In my own testing, I have found that it is often worse to turn off a core completely, than to aim for a lower clock speed on both active cores. My theory is that the increase of speed with multithreading speeds up processing over the single corr, thus staying at a higher frequency for less time.
Just a personal observation.

I'm New
I'm sorry if i sound like an idiot, but Does this work on the stock ICS rom? I'm rooted btw
and does it support undervolting?

Thank you, Very stable and responsive kernel. Only issue I've had after installing the kernel is that when I try to send an app from play.google.com to my phone it doesn't show up. I can still install from within the phone itself just not website to phone, not sure if it's related to this Kernel or not but started after flashed it.
Again I'm not 100% positive that it's related so will need to do some more testing...

techclan said:
Thank you, Very stable and responsive kernel. Only issue I've had after installing the kernel is that when I try to send an app from play.google.com to my phone it doesn't show up. I can still install from within the phone itself just not website to phone, not sure if it's related to this Kernel or not but started after flashed it.
Again I'm not 100% positive that it's related so will need to do some more testing...
Click to expand...
Click to collapse
Looks like the problem with the apps not getting pushed to the devide was a stuck process, my "smooth calendar" was at 83% cpu utlization and app pushes were being halted.

Android ICS 4.0.4 UVLH5 + Scorched Kernel ICS v1.0.29

techclan said:
Android ICS 4.0.4 UVLH5 + Scorched Kernel ICS v1.0.29
Click to expand...
Click to collapse
That's about right for the benchmark. I'm considering going a slightly different route with the kernel that may reduce performance a bit but should up battery life significantly.
Sick 2 year old at home so I've had limited time to play, unfortunately.

merwin said:
That's about right for the benchmark. I'm considering going a slightly different route with the kernel that may reduce performance a bit but should up battery life significantly.
Sick 2 year old at home so I've had limited time to play, unfortunately.
Click to expand...
Click to collapse
Hope your 2 year old gets well soon. Yes sacrificing a bit of performance to up the battery is definitelyitly worth it. Also seems like your scorched will outilizelize 384 and above, not sure how much battery can be saved but basic call functions and such can perfectly work on 192Mhz

roms
does this work on pacman rom 4.1.2 for the blaze please respond quickly my current kernel is random rebooting and this worked when i was on stock rom

No its for ICS
Sent from my SGH-T769 using xda premium

[KERNEL] [N910C/H] [MM Stable] Perseus-Halaszk-universal5433 [06 May 2016]

- FIRST READ -
** THIS CAN BRICK YOUR DEVICE **
** ONLY FOR SM-N910C/H MARSHMALLOW** ​IF YOU NEVER FLASH AND SET A KERNEL BE AWARE​IF YOU ARE NOT HAPPY WITH THIS KERNEL FLASH OTHER CUSTOM KERNELS
(GoogyMaxN4 or Wanam or Ultimate)​
I asked for permission to announce this kernel and All credits goes to @halaszk88
DONATE to halaszk88
(Every Coffee you send, will help him to work overnights )
Github Source:
2016.05.06 - All Sources are up to date V2.2MM Version
https://github.com/halaszk/Perseus-halaszk-universal5433
Click to expand...
Click to collapse
Kernel Download:
https://github.com/halaszk/Perseus-halaszk-universal5433/wiki
Click to expand...
Click to collapse
Thanks;
Credits,and big thanks to:
-halaszk88
-AndreiLux
-UpInTheAir
-Faux123
-Yank555.lu
-Friedrich420
-Dorimanx
-Alucard24
-Flar2
-Myfluxi
-Savoca
-TwistedUmbrella
-and to many many others!
Click to expand...
Click to collapse

Bugs - Screen Shots
-BUGS-
WiFi must be always ON to prevent MicroLags, TouchLag, UI Lag (Discussed on AndreiLux issue tracker)
-My Personel Settings-
https://youtu.be/W1if5mkhY1Q
My personel settings are like this. UnderVolt settings will not be compitable with yours. Every SoC has it's own UV capability so try and find yours.
-Power Advantage Calculation for My SoC -
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
As per AndreiLux's measurment:
"A57 are about 1.87 more efficient in performance per Mhz and 4.23 times less efficient in perf/W outside of voltage droop."
-Benchmark ScreenShots-

Change log
All Info Can be Found here
https://github.com/halaszk/Perseus-halaszk-universal5433/wiki
.

Info
* Flash zip file from CWM/TWRP (I am using TWRP)
* Wipe dalvick cache and cache (only an advise)
* Install SYNAPSE from PlayStore (thanks @AndreiLux for synapse)
* Make settings over Synapse
Battery and CPU Freq Stats

Wow, a new kernel! Nice to see it here!

nice..happy to see this.. 1 suggestion.. maybe u should state whether this is for lollipop or kk..

randykzc said:
nice..happy to see this.. 1 suggestion.. maybe u should state whether this is for lollipop or kk..
Click to expand...
Click to collapse
When you look at the Geekbench 3 screenshot, you can see that it says that it's lollipop.
Edit: Topic name now says that it's lollipop.

New kernel!welcome !
Sent from Note 4C

Excellent work here! Hopefully we gonna have updates! Thanks a lot!
EDITED:
Are you already using the latest source code (BOC3) seems it's already released.

I am not the DEV, developer is @halaszk88
But he is working to merge BOC3 source at the moment.
BOC3 Source code released couple of hours after V0.9F compiled.
andrew.mackew said:
Excellent work here! Hopefully we gonna have updates! Thanks a lot!
EDITED:
Are you already using the latest source code (BOC3) seems it's already released.
Click to expand...
Click to collapse

I hope that this kernel is going to stay here over the years and not get banned from xda like Ultimate kernel. One question: does it have CPU overclocking? If it has, how high?
Edit: I see it now. Thanks!

kadiremrah said:
I am not the DEV, developer is @halaszk88
But he is working to merge BOC3 source at the moment.
BOC3 Source code released couple of hours after V0.9F compiled.
Click to expand...
Click to collapse
Awesome news! Looking forward to see new updates! Thank you and the dev!

Whats it mean S6 cross cover?
Can you make this for F model?

Oohh..how long I waited to see a custom kernel thread..... Now the fun begins... Million thanks for the effort.. Looking for updates...
Thanks again....

please share your synapse setting

Ok so I am on asv 7 oc big cores to 2 GHz 1293.75 v and small ones to 1700 mhz on 1350 v and the the gpu on a safe oc at 700 mhz on 1062.5 v on antutu i get 35k with perfomance governor with some settings on development settings turned on on ultimate kernel my max antutu score was 43 k so anyone want to collaborate here? Also anyone posting their results please post also ypur asv rating of your board it is visible on synapse... And i gotta say that it doesn't feel butter smooth yet i mean the general ui animations. I also didn't use a fridge wasn't on powersaving mode and didn't lower the resolution to test it further yet i can get higher scores on 1080p or even 720 but since the score is so low from the start i don't expect any miracles can the op describe to us how did he get that amazing score?

Well UI is smooth here. But Antutu is low like yours. 35000 is a canceled one i think. GPU throttle frequencies are absolutely to high. My phone is not passing last gpu test with these settings. Strange is that gpu frequency stats never show any frequency above 420 MHz. The mainly used frequency is 266. That's the simole explanation for these low scores Looks like gpu oc and gpu scaling in general is not working correct atm. Anyway a nice attenpt and already good for daily use.
OP how do you got these scores?

This would be stock score

Glad to see you here!!
After the (in)glory of note3.. now we try with the 4..

My ASV is 8 using 981mV on 700MHz and 667MHz these two freq. need same voltage. And all gpu voltages must set precisely. If not test can be completed but with lower FPS so lower Score. DVFS helping to correct wrong Voltage of Freq. but this ErrorCorrectionTime seen as lower FPS.
And LL is said to has a PowerSaving bug. If "Settings/Power Saving/Power Saving Mode/Restrict Performance/CPU Performance" option ON whether PowerSavingMode settings is ON or OFF GPU does not go over 350MHz.
So go Settings/Power Saving/Power Saving Mode/Restrict Performance and set CPU Performance untick. May help
Enable 4x MSSA will give more detail but lower score so try stock values first, then find your setting step by step
For SMOOTHER UI please DISABLE "PowerEfficientWorkqueues" on Synapse/CORTEX_BRAIN menu
sephkateno said:
Ok so I am on asv 7 oc big cores to 2 GHz 1293.75 v and small ones to 1700 mhz on 1350 v and the the gpu on a safe oc at 700 mhz on 1062.5 v on antutu i get 35k with perfomance governor with some settings on development settings turned on on ultimate kernel my max antutu score was 43 k so anyone want to collaborate here? Also anyone posting their results please post also ypur asv rating of your board it is visible on synapse... And i gotta say that it doesn't feel butter smooth yet i mean the general ui animations. I also didn't use a fridge wasn't on powersaving mode and didn't lower the resolution to test it further yet i can get higher scores on 1080p or even 720 but since the score is so low from the start i don't expect any miracles can the op describe to us how did he get that amazing score?
Click to expand...
Click to collapse
pappschlumpf said:
Well UI is smooth here. But Antutu is low like yours. 35000 is a canceled one i think. GPU throttle frequencies are absolutely to high. My phone is not passing last gpu test with these settings. Strange is that gpu frequency stats never show any frequency above 420 MHz. The mainly used frequency is 266. That's the simole explanation for these low scores Looks like gpu oc and gpu scaling in general is not working correct atm. Anyway a nice attenpt and already good for daily use.
OP how do you got these scores?
Click to expand...
Click to collapse

[KERNEL]Quantum-Kernel for SM-T230NU

Quantum-Kernel for the SM-T230NU
If your still around and remember me from the old days, I m back and have with me a better version than I've built that includes new frequencies added. No more jumping frequencies!
For now on all builds will go to test folder until we find the perfect one.
WARNING! I AM NOT responsible for bricked deviceS, install at your OWN risk!
NOW LET THE FUN BEGIN!
Features:
-based on android 4.4.
*
-Kernel version: 3.10
*
oc to 1482....for now.
*
- custom governors, Lionheart, dancedance, Wheatley.
*
-oc axi, ram, and vpu for more stability.
*
-small tweaks
*
-f2fs support
Click to expand...
Click to collapse
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Sources:
-based off of @CTXz source.
Will add my github commits once i can fix my laptops wifi driver.
Changelog :
Added fiops and fifo schedulers, along with "darkness" CPU Governor. V3 only
Added support in kernel config...(not sure if it works quite yet) V3 only
V3.3 will be up tommorow, which includes the hotplugging, ksm and f2fs support
Click to expand...
Click to collapse
Downloads:
Quantum-Kernel
MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.
www.mediafire.com

beany23 said:
Custom kernel for the SM-T230NU.
If your still around and remember me from the old days, I m back and have with me a better version than I've built that includes new frequencies added. No more jumping frequencies anymore.
Features:
-based on android 4.4.2
- oc up to 1768
- custom governors, Lionheart, dancedance, Wheatley.
-based off of @CTXz source.
Downloads:
http://www.mediafire.com/file/2jufhxli7izan0t/BeastKernel-unified.zip
P.s. I've been seeing something about android 5.0 coming to our device, if someone would be wanting a kernel built let me know. Post a link and I'll get to it but until then here ya go .
Click to expand...
Click to collapse
sadly not my device sm-t231 lol i was searching for kernel for our device as u can see on the q&a tab 4 the timing is rite but sadly not my device

aqeelmessi10 said:
sadly not my device sm-t231 lol i was searching for kernel for our device as u can see on the q&a tab 4 the timing is rite but sadly not my device
Click to expand...
Click to collapse
I haven't built one for the smt231 before....how hard could it be.
U have the degaswifi3g right?

This kernel made my T230 lag more with graphics than normally. (Only little bit though)
I didn't notice any performance increase otherwise either.
Also I think battery drain is much higher in deepsleep than in stock kernel. I had this problem with earlier custom kernels too.
But would be awesome if it gets more stable some day. Good job trying to still give a life for this old tab:good:

keikari said:
This kernel made my T230 lag more with graphics than normally. (Only little bit though)
I didn't notice any performance increase otherwise either.
Also I think battery drain is much higher in deepsleep than in stock kernel. I had this problem with earlier custom kernels too.
But would be awesome if it gets more stable some day. Good job trying to still give a life for this old tab:good:
Click to expand...
Click to collapse
Ya i figured out why too, when I was building back in 2015 I always struggled to get the CPU running smooth. I've found out that the kernel can run at 1768 but struggles due to the ram and axi, which both can only run so high. I've dropped the max to 1586 and plan on leaving it there because its is a lot smoother and over clocking the axi and ram improved the smoothness quite a bit but that literally the max I can get it for now. Will post another build tonight for you to check out.

DELETED

Sorry its taking some time. Something I changed is causing a bootloop, I'm trying to fix it now

keikari said:
This kernel made my T230 lag more with graphics than normally. (Only little bit though)
I didn't notice any performance increase otherwise either.
Also I think battery drain is much higher in deepsleep than in stock kernel. I had this problem with earlier custom kernels too.
But would be awesome if it gets more stable some day. Good job trying to still give a life for this old tab:good:
Click to expand...
Click to collapse
Try the new test build see how it is.

beany23 said:
Try the new test build see how it is.
Click to expand...
Click to collapse
It feels lagging too. Stock kernel lags too, but with it you can pull top bar down more smoothly(I think). This tab is kind of laggy with UI animations anyway so a bit hard to say is there a difference. I will still leave it installed over night to see how much battery it drains while in deep sleep with no wifi. Also even if it's lagging the cpu usage doesn't seem to need to go over 50% when using kernel adiutor(I only tried to pull top bar down switch menu though, but with this lag I though it should go higher). Not sure how high did the stock kernel cpu usage rise. Will check tomorrow when I install it back.

beany23 said:
Try the new test build see how it is.
Click to expand...
Click to collapse
I don't think here was any higher battery drain in deep sleep than with stock kernel. I think the cpu usage goes higher in stock(when just pulling menus in kernel adiutor, but now they move smooth/smoother). Also now I'm sure the stock kernel is much smoother with animations.

keikari said:
I don't think here was any higher battery drain in deep sleep than with stock kernel. I think the cpu usage goes higher in stock(when just pulling menus in kernel adiutor, but now they move smooth/smoother). Also now I'm sure the stock kernel is much smoother with animations.
Click to expand...
Click to collapse
I'm not home at the moment but I'll see what I can do when I get back.

keikari said:
It feels lagging too. Stock kernel lags too, but with it you can pull top bar down more smoothly(I think). This tab is kind of laggy with UI animations anyway so a bit hard to say is there a difference. I will still leave it installed over night to see how much battery it drains while in deep sleep with no wifi. Also even if it's lagging the cpu usage doesn't seem to need to go over 50% when using kernel adiutor(I only tried to pull top bar down switch menu though, but with this lag I though it should go higher). Not sure how high did the stock kernel cpu usage rise. Will check tomorrow when I install it back.
Click to expand...
Click to collapse
posted another test kernel. i took out the 156 frequency for now, seemed to make it buggy

beany23 said:
posted another test kernel. i took out the 156 frequency for now, seemed to make it buggy
Click to expand...
Click to collapse
Where did you posted the new kernel?

keikari said:
I don't think here was any higher battery drain in deep sleep than with stock kernel. I think the cpu usage goes higher in stock(when just pulling menus in kernel adiutor, but now they move smooth/smoother). Also now I'm sure the stock kernel is much smoother with animations.
Click to expand...
Click to collapse
keikari said:
Where did you posted the new kernel?
Click to expand...
Click to collapse
Under the test builds it's v2

beany23 said:
Under the test builds it's v2
Click to expand...
Click to collapse
I only see the one(the first) link under test builds.

keikari said:
I only see the one(the first) link under test builds.
Click to expand...
Click to collapse
https://www.mediafire.com/file/ip1ylwgperyf8iy/BeastKernel-testv2.zip

beany23 said:
posted another test kernel. i took out the 156 frequency for now, seemed to make it buggy
Click to expand...
Click to collapse
Yeah, now it is at least as smooth as stock kernel. I think some apps move a bit snappier. I'm gonna stick with this version for now.

keikari said:
Yeah, now it is at least as smooth as stock kernel. I think some apps move a bit snappier. I'm gonna stick with this version for now.
Click to expand...
Click to collapse
Awesome that its better, also do your games open at all? I'm having issues with them not opening

beany23 said:
Awesome that its better, also do your games open at all? I'm having issues with them not opening
Click to expand...
Click to collapse
I don't have any games in tab. Which game doesn't load, I can install and check if it works for me.

keikari said:
I don't have any games in tab. Which game doesn't load, I can install and check if it works for me.
Click to expand...
Click to collapse
Turbo racing jetpack joyride. Games I tried testing but wouldn't open