Power saving mode on lollipop lags more than on preview - Nexus 5 Q&A, Help & Troubleshooting

This is one thing i have noticed that power saving mode lags a lot more in official uptate than in preview lpx13d. Has any one noticed this. Also does changing kernel n tuning cpu governors n frequencies affect power saver? i generally underclock to 2ghz and my governer is elementalx i/o is row and buffer size is 512
Sent from my Nexus 5 using XDA Free mobile app

I think it's normal.
If you want no lag when using Power Saving Mode, use faux kernel.
Because it has turbo boost, and works good with Power Saving with no lag.

Yeah, I noticed lag too when battery saver was on too. I did not even have but maybe 3 apps open in recent apps. It definitely was not just a little lag either, it was pretty bad. I definitely would not say that is 'normal' considering when you put an M8 or any other device in battery saving mode, it lags absolutely nothing like that. I wonder if it is because they have the CPU too under clocked for battery saving more. Regardless of the cause that is definitely something Google needs to work out.

AndroidPurity said:
Yeah, I noticed lag too when battery saver was on too. I did not even have but maybe 3 apps open in recent apps. It definitely was not just a little lag either, it was pretty bad. I definitely would not say that is 'normal' considering when you put an M8 or any other device in battery saving mode, it lags absolutely nothing like that. I wonder if it is because they have the CPU too under clocked for battery saving more. Regardless of the cause that is definitely something Google needs to work out.
Click to expand...
Click to collapse
You can try what I suggest above. On Lollipop, the one I know is stock kernel is not the best anymore.

I personally use Hybrid Kernel. For the moment, I see it as the most updated kernel simply because all of the drivers are updated, and there's some CAF code but it works on AOSP wonderfully.
Keep in mind, there are plenty of other good kernels and I have tested them all. This is what works best for ME.

I noticed the same issue with my S4 5.0.1. Turning on power save mode causes lag especially when scrolling anda tapping. I used Root Booster in Battery mode also if it makes the lag worse.

Related

[Q] Question about Kernels

Hi, my Triumph should be arriving in the mail in just a few days and i was wondering which is the best kernel or ROM and Kernel combination that is best for battery life? I've heard that battery life on the Triumph is not so good. Maybe it's false but i would still like to know.
jerenater10 said:
Hi, my Triumph should be arriving in the mail in just a few days and i was wondering which is the best kernel or ROM and Kernel combination that is best for battery life? I've heard that battery life on the Triumph is not so good. Maybe it's false but i would still like to know.
Click to expand...
Click to collapse
I would go with CM7
That's what i was planning on. Does your Triumph give you battery problems?
jerenater10 said:
That's what i was planning on. Does your Triumph give you battery problems?
Click to expand...
Click to collapse
The battery life is a lot better now with the latest builds of CM7 and MIUI.
I just use CM7 and leave wifi and bluetooth off, no juice defender or anything like that and I can easily go all day with no charge, typically about a day and a half and my battery is getting low but it really depends on what you are doing like games, wifi, videos and whatnot.
Before I think there was a problem with the battery draining while in idle but things have cleared up since then, There are also third party kernels you can OC and everything, but you can use them to undervolt as well to save some battery if you know what you are doing. over on androidforums there is a lot more chatter about this phone, just so you know.
ketjr81 said:
The battery life is a lot better now with the latest builds of CM7 and MIUI.
I just use CM7 and leave wifi and bluetooth off, no juice defender or anything like that and I can easily go all day with no charge, typically about a day and a half and my battery is getting low but it really depends on what you are doing like games, wifi, videos and whatnot.
Before I think there was a problem with the battery draining while in idle but things have cleared up since then, There are also third party kernels you can OC and everything, but you can use them to undervolt as well to save some battery if you know what you are doing. over on androidforums there is a lot more chatter about this phone, just so you know.
Click to expand...
Click to collapse
Thanks. I got my phone today and im loving it so far. Do you know which of those third party kernels are good for battery life and that i can install over stock? I'm not quite ready to install a ROM yet but i already did the HTC Thunderbolt Build.prop tweak and obviously im rooted.
It's usually not the kernel but whatever governor you have it set to use. Even the stock can get improved performance if you switch the governor to such--”performance”--but I'm probably not the guy to tell you about which one is best.
I also have the silly feeling a lot of misconceptions abound here...in the form of ”I changed this setting and now my device lasts longer..., oh btw I no longer play with it 24/7.” In other words, use drastically impacts battery performance. JuiceDefender is an amazing tool but it won't do you a bit of good if you're testing out your phone's Adobe Flash capabilities regularly.
Sent from my Wildfire S
The Savagezen and interactive (not sure if interactive is on any of the kernels for this phone.) gov isn't that great. At least not in my experience. I had SmartassV2 on my girlfriends phone and it got ~3600 on Antutu benchmark at 1.5 and when I used Savage at 1.5 she got ~1700. The interactive gov made my friends Dinc2 noticably slower. Just switching home screens it lagged to the point it was hard to get into the app to change the gov.
CM7 + TheOC kernel allows adjusting voltage & overclock or underclock. You really should flash a CM7 ROM. Having it just rooted can be dangerous because you're not using a custom recovery to make a backup image, and if something messes up, you don't have a backup ROM to restore. Going to a different ROM forces you to make a backup, then there's a backup to restore if you mess things up.
Governors just tell the CPU how fast to ramp up to a certain frequency, & how long to stay there. It's hard to balance fast ramp up (less lag), and low battery drain (spend more time in the lower frequencies). I like interactive/x, find that smartassv2 spends too much time in the mid frequencies (~500) even for light work. Using the app CPU Spy helps a lot to see what's going on. Also it tells you whether your phone is sleeping properly when screen is off, which is a big factor for battery drain.

Performance mode

I see a great deal of people writing about poor performance on this tab and real, real bad lag and benchmarks ect and i know on stock this machine does not perform awesome but i just wonder... are you guys aware there are 2 performance mode settings in the stock rom? if you go to settings, then power saver, then scroll down to and click sytem performance, then change it to performance mode. then there is another one right on your task bar thats real easy to find, says power saving mode balanced and performance. turn both settings to performance and i found it worked better for me when i was on stock. just curious if some of yall did that or not.
conan1600 said:
I see a great deal of people writing about poor performance on this tab and real, real bad lag and benchmarks ect and i know on stock this machine does not perform awesome but i just wonder... are you guys aware there are 2 performance mode settings in the stock rom? if you go to settings, then power saver, then scroll down to and click sytem performance, then change it to performance mode. then there is another one right on your task bar thats real easy to find, says power saving mode balanced and performance. turn both settings to performance and i found it worked better for me when i was on stock. just curious if some of yall did that or not.
Click to expand...
Click to collapse
The one in power saver is just that.
Work on low battery if it is on.
So I just leave it in middle setting.
You want to get the most out of the tablet? Root that sucker and overclock it. I run mine at mine at 1.5 GHz and it'll handle just about everything I throw at it. :thumbup:
Sent from my Transformer Pad TF300T using Xparent Purple Tapatalk 2
how do i make it automatically select PERFORMANCE MODE every time it boots up?
currently, it'll reset to balanced mode when i restart the tablet
As far as I know, you can't.

Battery discussion, No more heat, 2 days battery life, Same Performance

The Problem With The S4 That It Has More Cpu Then It Needs. It Doesnt Have To Use It Cpu Up To 1600 Mhz, But It Automatically Does,
It Works Perfectly At 2 Cores And 800 Mhz, No Difference, Only A Better Experience , Please Read On
Ok Guys, This Will Be The Battery Discussion Page For The S4, We Will Be Doing Kernel And Under Volting Test, And Ways To Save Battery,
We Will Post Battery Records Here, And Many Other Things, This Is How It Works
I Will Post Mine Tomorrow After Fully Charging
Must Be Fully Charged Till 5 Percent Charge Without Pluging In Cable In Between,
And You Must Use Your Device As You Would Everyday
Install Cpu Spy
This Is The Layout You Fill In For Your Post
ROM:
KERNEL:
CPU MIN:
CPU MAX:
CPU GOVERNOR:
CORES ONLINE:
CORES OFFLINE:
Click to expand...
Click to collapse
Information Of How You Used Your Phone During The Process
And Any Other Information Like The Apps You Have Installed, And The App You Use To Save Battery With, Or Your
App Alternatives For Better Battery Life
Attach Photos (screenshots) Of Your Battery Record, Stats, And On Screen Time Using The Stock App In The Settings
And Your Cpu Spy Page
"i For One Have 2 Cores Offline And Under Volted To 250-800 On Both Online Cores And Have The Ondemand Governor Activated, And I Havent Felt Performance Lost, Runs Temple Run And Subway Surfers Perfectly, And No Heat, Even If Im Charging With Wifi On And Im Downloading Something, Its Great
Seems to be a nice idea. But could you elaborate as on why the text is bold and you had to use capslock for 1/2 of it!?
@slind ok i fixed the post. i will be posting links to the posts who are great battery savers without loosing performance
So basically, we use an I9500 like an Ace or a Grand to get rid of heating and battery drains.. Andyou suggest that it won't result in performance loss. I'd suggest playing games that are more graphically intensive and not just Temple Run.. Try copying data from one memory card to another, or simply try running a Full HD Video. Also, check out web browsing or maybe multitasking, and you'll see where the performance dies out.
I think the fix should come in the upcoming releases of stock firmware by Samsung. By turning off a couple of cores, you're only going back a couple of years. I don't think I upgraded from the S3 to S4 for that reason.
cabloomi said:
The Problem With The S4 That It Has More Cpu Then It Needs. It Doesnt Have To Use It Cpu Up To 1600 Mhz, But It Automatically Does,
It Works Perfectly At 2 Cores And 800 Mhz, No Difference, Only A Better Experience , Please Read On
Ok Guys, This Will Be The Battery Discussion Page For The S4, We Will Be Doing Kernel And Under Volting Test, And Ways To Save Battery,
We Will Post Battery Records Here, And Many Other Things, This Is How It Works
I Will Post Mine Tomorrow After Fully Charging
Must Be Fully Charged Till 5 Percent Charge Without Pluging In Cable In Between,
And You Must Use Your Device As You Would Everyday
Install Cpu Spy
This Is The Layout You Fill In For Your Post
Information Of How You Used Your Phone During The Process
And Any Other Information Like The Apps You Have Installed, And The App You Use To Save Battery With, Or Your
App Alternatives For Better Battery Life
Attach Photos (screenshots) Of Your Battery Record, Stats, And On Screen Time Using The Stock App In The Settings
And Your Cpu Spy Page
"i For One Have 2 Cores Offline And Under Volted To 250-800 On Both Online Cores And Have The Ondemand Governor Activated, And I Havent Felt Performance Lost, Runs Temple Run And Subway Surfers Perfectly, And No Heat, Even If Im Charging With Wifi On And Im Downloading Something, Its Great
Click to expand...
Click to collapse
post some screenshots with your screen time.
@adyscorpius
everyone has there preferences and there needs in a phone. and there own settings. and this is a Battery discussion thread. we will be doing many performance and voltage mods, so everyone could choose the settings that suits them. now please dont post aggressive post like that, im not stupid. i know that my settings are very low.
but for my most played games and most used apps. it doesnt seem to effect my performance, so im comfortable with my settings
i had the phone for 2 weeks, happily showing off battery performance and then i asked myself again, why the heck i bought this phone in the first place? BECAUSE IT HAS REPLACABLE BATTERY!.. LOL.. how silly i am trying to squeeze that little drop of power out of the battery when I can double the battery just by getting another spare.
no need to turn off anything, no need to drop performance or screen brightness.. just pure enjoyment of the full potential without worrying battery problem.. just get a spare.
cabloomi said:
@adyscorpius
everyone has there preferences and there needs in a phone. and there own settings. and this is a Battery discussion thread. we will be doing many performance and voltage mods, so everyone could choose the settings that suits them. now please dont post aggressive post like that, im not stupid. i know that my settings are very low.
but for my most played games and most used apps. it doesnt seem to effect my performance, so im comfortable with my settings
Click to expand...
Click to collapse
I didn't mean to be aggresive and sorry if you felt like that. All I mean is, there is a limit to which you can undervolt/underclock your phone without losing the functionality or speed. While underclocking to 1.0 ghz or 1.2 ghz sounds kinda normal, going all the way down to 800 Mhz and that too only on two cores is like running Galaxy Ace Dual Core instead. Why would I want to spoil my S4 for it?
That is all that I meant. And the phone is normally shelling out a good day's use in normal usage. Why bother so much about battery really???
My S4 i9505 came with MDE ROM from the factory, apart from doing dirty flashes over dirty flashes, finally someone came up with a recovery which is working. So i've :
1. Formatted system , cache , dalvik
2. Loaded in Djembey's stock slim deodexed ME2 ROM.
3. Using PimpMyROM, did some moderately less aggressive tweaks.
4. Capped the Max frequency at 1674MHz. Interactive gov, Noop sched.
5. Fully charged and unplugged.
6. Fully on 3G . Gmail sync for calendars, contacts, mail, keep, notes. Moderately heavy on Gtalk and Whatsapp. Browsing news and websites.
Observed 4 hours screen time.
Almost 15 hours of total usage + standby (This doesn't mean much, screen time depicts usage time more)
The phone still feels warmer than S2, under operation.
I've yet to try faux kernel yet, but i doubt it would get much better than this. The physical limit i feel is on the CPU, HD AMOLEDs, and the modem itself under normal usage.
Feel free to comment.
Hi,
hope you may be able to help. I have been trying almost everthing to increase the music volume as the s4 does not drive my senheiser headphones as well I would like. Is it possible to increase the gain through a kernel mod somehow?
Wow you're really random. This thread isn't even remotely discussing about the issue you raised.
Try the omega ROM thread, see if the functionality list includes volume hack.
Sent from my GT-I9505 using xda app-developers app
How does one go about disabling two of the cores ? c:

Boost performance and increase outdoor visibility..

I just read this over on phonearena and wondered if anyone else saw it and has tried it.
http://www.phonearena.com/news/How-...-visibility-of-the-LG-G3-without-root_id58888
Im tempted to try it but hesitant too.
It'll increase the overall performance of the phone, at the cost of a little bit battery life, since turning off thermal mitigation allows the cpu to clock at a higher speed more often while ignoring the heat.
I cant decide if its worth it. For the most part I dont have any complaints about the brightness but I also use Lux.
While it was a different phone I did this same thing with my LG G Pro with no adverse effects to the phones operation in just over a year. It is still going strong in fact, so I dont fear phone damage by doing this but on this phone I havent seen the need for it yet.
I've been using this setting for some time now. I see no decrease in battery life, indeed I've seen nothing negative from it.
Sent from my LG-D850 using Tapatalk 2
I've had both thermal settings off for a while now as well, it only powered down from heat once and that was because I was chrome casting Netflix and playing a intensive 3d game. Other than that it's fine, however I would expect it to get hot doing 2 large processes anyway. Battery life is still 4-5hiues SOT
By doing this my phone over heats and the turns itself off. Was running fine for a while with it on but I guess it was to much for the phone to handle.

Power Users: Post Your Optimal Setup!

This thread is intended to have power users post their best configurations so as to guide the rookies in optimizing their MXPs once they get unlocked and rooted. It's also intended to compare the best setups for battery, performance, gaming, multitasking, etc.
My main interest is in battery life, although lately I've been on the XDA Labs app like crazy and it's hurting my drain.
Constructive criticism welcome on how to improve the below records!
ROM: Stock MM Canadian
Kernel: Ultra Kernel R3
Governor: Smartmax
Frequencies: 200 big, 800 little
Xposed Framework modules: Force Fast Scroll, Lucky Patcher, GravityBox (duh!), Use USB For Marshmallow, Xposed GEL Settings
Best SOT: 8 hours
Best Drain (100% to 0%): 120 hours
Other miscellaneous tweaks: Shake Flashlight as a system app instead of double-chop (works great, just don't let go)
Launcher: Still figuring that out...but Nova and DarkLauncher are worthy contenders right at the moment
Voice Assist/Google Now on long-press Home: Disabled thanks to @pijes. Settings > Apps > Gear icon > Default Apps > Voice and Assist > None
Post below, power users! What's your best setup so far?
Bro, I would like you use Greenify and DS Battery saver
As you have xposed framework installed you can use boost mode in greenify and also
DS Battery saver also has a module so activate them and then choose slumberer and phew see your battery stats
Coming to launcher, right now Arrow launcher is good and smooth and I prefer that
Thank you!
ashwath230 said:
Bro, I would like you use Greenify and DS Battery saver
As you have xposed framework installed you can use boost mode in greenify and also
DS Battery saver also has a module so activate them and then choose slumberer and phew see your battery stats
Coming to launcher, right now Arrow launcher is good and smooth and I prefer that
Thank you!
Click to expand...
Click to collapse
Cool man thanks. I'll try the Greenify and DS you recommend. I've seen Greenify a lot around XDA. I'm excited to try it.
Tesla rom(seems faster/smoother then stock/anyother rom) plus Squid kernel. Governor is set to Lionfish and I/O scheduler is set to Row with 512kb readahead. Minimum frequency for the Big cluster is 800mhz and 499mhz for the little cluster. NFC and location disabled. Best battery life I ever got was with stock with the same kernel/settings configuration, had 9 hrs SOT and nearly 24 hrs overall.
xtremeed2705 said:
Tesla rom(seems faster/smoother then stock/anyother rom) plus Squid kernel. Governor is set to Lionfish and I/O scheduler is set to Row with 512kb readahead. Minimum frequency for the Big cluster is 800mhz and 499mhz for the little cluster. NFC and location disabled. Best battery life I ever got was with stock with the same kernel/settings configuration, had 9 hrs SOT and nearly 24 hrs overall.
Click to expand...
Click to collapse
What do you mean nearly 24 hours overall - how long before you had to recharge?
I need to learn more about I/O scheduling. I've changed to Row and 512 as you recommend but where will I see the difference? When I connect to my PC? When apps access internal storage?
I've changed my governor back to lionfish. Smartmax wasn't doing it for me. 200 big 800 little. I'll look into that Tesla ROM too.
I was hoping this thread was gonna be more popular. I hope some people have gotten use out of it so far! Grow little thread, grow!
It would be awesome to see more growth in this thread! It would enable prospective buyers to talk to current owners, and figure out what they might want before they sink money into the device!
*cough*cough*
Which is exactly what I was hoping to do! Does anyone know if sweep to wake/sleep is possible with the Moto X Play? It's honestly one of the most useful features I've ever seen from rooting et al.
I'll post my setup. Been using it this way for like 2 weeks so I feel it's stable.
I'm currently running this:
Unlocked BL obviously
Stock Canada firmware (MPD24.65-18)
Rooted
Xposed Framework installed
Squid Kernel r14b
I have gravity box installed and that's really it as far as tweaks and stuff.
Averaging 5 or 6 hours SOT down to about 25% or 30%. Really depends on what I do and what network I use. Performance is great too.
I'm gonna mess around with some of this stuff tonight and see what I can do with it.
Sent from my XT1563 using Tapatalk
I'm trying the interactive governor in Squids kernel, some of the stuttering issues have disappeared. Like when I clear all recents in the task switcher screen or scrolling big web pages.
Sent from my XT1563 using Tapatalk
Marshmalux. Rooted. Xposed. Greenify. Powernap. Amplify.
Getting sot around 5.5 hours for my usage. Happy with that squid kernel latest r15. Lionfish on both cores
Sent from my XT1563 using Tapatalk
JohnHorus said:
It would be awesome to see more growth in this thread! It would enable prospective buyers to talk to current owners, and figure out what they might want before they sink money into the device!
*cough*cough*
Which is exactly what I was hoping to do! Does anyone know if sweep to wake/sleep is possible with the Moto X Play? It's honestly one of the most useful features I've ever seen from rooting et al.
Click to expand...
Click to collapse
Hey hey. Thanks for posting!
I'm sure sweep to wake is possible on the phone in some way, likely through a combination of rooting and Xposed modules. I know that GravityBox has a double tap on status bar to sleep feature.
One of the nicest features of the X Play is the Moto Display. It's nice to have the phone screen come.on showing notifications without fully waking the phone. Check out the Moto Display app on the Play Store. It's a totally sexy feature.
I'd say this phone is absolutely worth it for the battery alone. I personally feel the camera to be laggy especially with focus, so consider that if you're a shutterbug. I am very hopeful that software updates will being out the power of the camera but it doesn't have optical image stabilization so blir happens more frequently, at least for me. That could be my shake fingers though.
Feel free to ask any further questions!
brian10161 said:
I'm trying the interactive governor in Squids kernel, some of the stuttering issues have disappeared. Like when I clear all recents in the task switcher screen or scrolling big web pages.
Sent from my XT1563 using Tapatalk
Click to expand...
Click to collapse
Good stuff. Interactive does appear to handle web pages better. I did a Wikipedia search for The Simpsons and got a huge page. I flicked down to scroll it all at once and then Chrome froze. Hahahaba. Same with Lionfish though. Maybe I'm getting greedy thinking this phone is as powerful as my PC.
Lionfish was giving me great SOT results. Like I mentored in the OP: 8 HOURS! Was so happy to see that. Blew the socks off my Nrxus 4. I average between 6.5 and 8 usually, but WhatsApp and XDA Labs are hurting those scores now.
I haven't had to Greenify any apps yet - I only hsvr geeky ones installed anyway so they never keep the phone awake.
Gopinath15 said:
Marshmalux. Rooted. Xposed. Greenify. Powernap. Amplify.
Getting sot around 5.5 hours for my usage. Happy with that squid kernel latest r15. Lionfish on both cores
Sent from my XT1563 using Tapatalk
Click to expand...
Click to collapse
I think @squid2 deserves a lot of credit for extending the X Play even further. His kernel and work on TWRP make the X Play even more attractive than it is out of the box.
I prefer Ultra kernel personally because I believe the dev for that (@technoander) takes the latest releases of squid's and adds features to them. I may be mistaken but that's my impression. I'll try to clarify and report back. I should do a direct comparison of Ultra and squid's latest to be as objective as is possible with a subjective test. Hahaha.
I guess I should specify a bit further - sweep/tap2wake is really only effectively useful when the phone supports some kind of low-power state for the touchscreen, otherwise the screen has to remain on in order to use it.
I'm sure sweep2sleep would be possible, but if there's no low-power state for the screen, it wouldn't really matter for me in the end. Moto display sounds like exactly what I'm talking about, though I don't know if it includes any low power mode for the touch features, as well as the display.
I'm gonna look into this a bit more, and see if I can dig up any info. It would be a hardware feature, designed-in, so it definitely should be discoverable. I figure if I can find out all the information for one of the people who have written kernels for the phone, they shouldn't have a problem emulating the feature. It's popular enough, and with the low-power state, shouldn't be too complex to implement.
JohnHorus said:
I guess I should specify a bit further - sweep/tap2wake is really only effectively useful when the phone supports some kind of low-power state for the touchscreen, otherwise the screen has to remain on in order to use it.
I'm sure sweep2sleep would be possible, but if there's no low-power state for the screen, it wouldn't really matter for me in the end. Moto display sounds like exactly what I'm talking about, though I don't know if it includes any low power mode for the touch features, as well as the display.
I'm gonna look into this a bit more, and see if I can dig up any info. It would be a hardware feature, designed-in, so it definitely should be discoverable. I figure if I can find out all the information for one of the people who have written kernels for the phone, they shouldn't have a problem emulating the feature. It's popular enough, and with the low-power state, shouldn't be too complex to implement.
Click to expand...
Click to collapse
Cool - definitely report back - it would be nice to know if this is embedded in the hardware somewhere. I hope it is, unlike optical.image stabilization. Damn!
XxMikeMasterxX said:
What do you mean nearly 24 hours overall - how long before you had to recharge?
I need to learn more about I/O scheduling. I've changed to Row and 512 as you recommend but where will I see the difference? When I connect to my PC? When apps access internal storage?
I've changed my governor back to lionfish. Smartmax wasn't doing it for me. 200 big 800 little. I'll look into that Tesla ROM too.
I was hoping this thread was gonna be more popular. I hope some people have gotten use out of it so far! Grow little thread, grow!
Click to expand...
Click to collapse
Yes nearly 24 hrs before I had to recharge. As for Row you should notice it with both situations. I use it because of other phones I had before people were saying it was one of the better I/O schedulers.
Actually I have a picture of when I got it. Was nearly 23 hrs not 24 but still.
Hey developer,the banking apps I have does run after flashing a custom rom.Is there any workaround for this?.have to reflash stock after trying any custom rom.Its a pain in the as*.
xtremeed2705 said:
Yes nearly 24 hrs before I had to recharge. As for Row you should notice it with both situations. I use it because of other phones I had before people were saying it was one of the better I/O schedulers.
Actually I have a picture of when I got it. Was nearly 23 hrs not 24 but still.
Click to expand...
Click to collapse
Row is essentially the best scheduler. Benchmarking is weird, because by design it's an optimized test case and not a use case. Use cases will always be variable, but generally with a smartphone writes aren't too latency-sensitive. That's why Read Over Write generally works the best once your phone is settled, because reading is most of what it does. Doesn't write too often.
There are lots of custom governors, not so many custom schedulers, and lots of suggestions, but generally stock *IS* best, and if you don't understand it, you should not change it. Governors are fun to play with but even they can cause issues if poorly coded. Changing governors will give you a huge impact on battery, but also a relative impact on performance. It all depends on the use context. You'll rarely get much battery life without a performance hit unless you custom-tune settings for your own use context.
As for read-ahead, that value is iconic of exactly what I'm talking about. It is the "chunks" of data that your OS reads in one go. So if it needs 2k, or 2m, it reads a different number of chunks, but each chunk will be the size set by I/O read-ahead. Google likes 512 best. I've been told by the dev for the EX Kernel that internal Motorola devs like 128 best. Benchmarks like the biggest value possible, because they present the OS a massive pile of data and ask it to read it all as fast as possible. In that context, a large chunk size saves time. In most contexts, you read more than you need half the time. So a low value like 128 saves battery and memory.
---------- Post added at 09:10 AM ---------- Previous post was at 09:08 AM ----------
kiran91 said:
Hey developer,the banking apps I have does run after flashing a custom rom.Is there any workaround for this?.have to reflash stock after trying any custom rom.Its a pain in the as*.
Click to expand...
Click to collapse
Android pay does this too, it's a "security" feature built-in by the devs to stop hacking. Not really necessary, but then neither are smartphones, so you take what you can get I guess. No ROM developer can work around this for you. The app is detecting any modification whatsoever. Even root may cause it.
xtremeed2705 said:
Yes nearly 24 hrs before I had to recharge. As for Row you should notice it with both situations. I use it because of other phones I had before people were saying it was one of the better I/O schedulers.
Actually I have a picture of when I got it. Was nearly 23 hrs not 24 but still.
Click to expand...
Click to collapse
Badass dude. 9 hours SOT is wicked.
I'm finding the phone app drains the battery like crazy. Is this to be expected?
Hey @JohnHorus - thanks for your informative post. I'm currently trying Row 128 and will report back but I doubt I'll see any real-world difference in use. Memory and battery are two soft spots for me so I'm hopeful 128 will maintain solid performance.
Looking forward to reading about others' setups!
XxMikeMasterxX said:
Badass dude. 9 hours SOT is wicked.
I'm finding the phone app drains the battery like crazy. Is this to be expected?
Click to expand...
Click to collapse
Yeah in my experience it drains the battery more then doing other things for some reason. As you can see in my 9 hrs picture I only used the phone for like 2 minutes lol.

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