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I have an overclocked Samsung Epic and it the improvement in speed in everyday use is significant. Because the processor voltage is set lower than stock there is no sacrifice in battery life. With the Asus Transformer do you get a definite and significant benefit from overclocking? I am not talking about test bench scores but real world noticeable responsiveness. When I skim through the forums it is difficult for me to tell? Some people swear by sticking with stock. I would appreciate others perspectives.
Thanks
The improvements from overclocking vary on the application.
Home screen switching is choppy regardless of overclocking simply because the launcher lacks optimization. Browser performance is improved a little bit, but mainly remains unchanged as well. Games run noticeably smoother, especially Fpse. Task switching gets a small boost, as some applications will be able to load faster.
If you're a big gamer, overclocking is definitely worth it. For everything else, it won't make much of a difference.
I haven't played too many games (mostly Stardunk and Stupid Zombies) on my TF, but I haven't noticed any issues with them. I have also played high profile 720p video with absolutely no stuttering or artefacts.
In other words, I haven't felt the need to overclock yet. But if you are doing heavy gaming and/or video processing of some kind, it might be worthwhile.
For me, there's hardly any need to OC. It all depends on what you wanna do. To many people who play a lot of games on their TF, they report increases in performance (especially with emulators) but on other things I never really noticed any difference. I'm currently underclocking my TF, and have been for about a week, with no noticable stutters or performance issues and have great battery life.
And it's not really an "effort" to flash a new kernel... the hardest thing is waiting for your device to boot up again...
I have a transformer, galaxy tab 10.1, and a xoom. I've used just about every kernel that can be overclocked for each one of them, and to be honest I haven't really seen any improvements from them. I don't really play many games on my tablets though, so maybe there really is some benefit in that area.
Galaxy's screen
How do you rate the screen of the Galaxy Tab 10.1? Is it as good as the Super AmoLED (+)'s from Samsung mobiles?
droidx1978z4 said:
I have a transformer, galaxy tab 10.1, and a xoom. I've used just about every kernel that can be overclocked for each one of them, and to be honest I haven't really seen any improvements from them. I don't really play many games on my tablets though, so maybe there really is some benefit in that area.
Click to expand...
Click to collapse
This seems so counter-intuitive to me. If you overclock a PC CPU there is a very direct correlation with performance. There are always limiting factors such HD acess, etc., but there is a definite and noticeable difference across applications. What is even more surprising is that we are talking about very large % increases vs what people can do in the PC world. People are overclocking these CPUs by 50% plus...You would think you would see a very noticeable improvement but that doesn't seem to be the case.
My main interest is in browser performance. For example, XDA forum pages load extremely slow in all browsers I have tried (stock, Opera, Dolfin) with 5-6s to refresh vs instant on desktop browser. Also flash video tends to freeze and stutter some times. My internet connection is over 20Mb/s down and 5Mb/s up. I was hoping that I would find overclocking safe and provide a noticeable improvement.
earlyberd said:
The improvements from overclocking vary on the application.
Home screen switching is choppy regardless of overclocking simply because the launcher lacks optimization. Browser performance is improved a little bit, but mainly remains unchanged as well. Games run noticeably smoother, especially Fpse. Task switching gets a small boost, as some applications will be able to load faster.
If you're a big gamer, overclocking is definitely worth it. For everything else, it won't make much of a difference.
Click to expand...
Click to collapse
So for web page loading you haven't noticed much of a difference? How about flash video?
Thanks.
Overclocking can be a bit like collecting .. 'string' , because it is mostly done for the sake of itself, kind of like the many Ham Radio fans who talk about their "rigs", etc etc.
Yeah, of course if you can get, like in the old old days, a celeron 300 that overclocks to 450, and is dead stable, it was noticeable, and if you had a droid 1, which overclocked (many did) with ease from 500 to 1000+ , then it was again, noticeable, just not a staggeringly 2 times increase, because there are too many other factors.
The number of bus errors, and retries and slowness of the original bus speeds, and other components makes for a not-quite-as-expected by the numbers 'increase'. I would still mess with it, but not for the obvious reasons. I like under-volting more, and over-clocking only the slightest bit where nothing ever crashes or FCs. The moment you overclock, you really shouldn't be asking questions about 'Why does blah blah netflix crash?' because it crashes because you overclocked, and nothing else matters until you stick a kernel back at stock in there.
The other thing I love about alternate kernels is that you've got control of what modules you either compile in or compile and load as .ko files. cifs, tun, ntfs, whatever, it is all very useful, so there are lots of good and not-as-good things about it.
One thing I hate is when a dev insists on creating a kernel that has a 'default' speed greater than stock so that you've instantly got an ordeal if you've got one of the many gizmos that will not overclock to his default (like 1.6 to pick a number out of a hat).. Just make them all start at default, then allow us , the users, to setup overclocking via testing with setcpu or some such thing. Much easier than basically bricking things right off.
I sometimes look at those guys that overclock 'seriously' (by 3-4 times) using a container of liquid nitrogen that lasts for ~5 minutes and it is all for bragging rights, setting records , etc and think they're insane, but that is also part of it. Some are happy if they can just post here that they got 9,000 mF on some test despite not being able to do anything else reliably.
hachamacha said:
Overclocking can be a bit like collecting .. 'string' , because it is mostly done for the sake of itself, kind of like the many Ham Radio fans who talk about their "rigs", etc etc.
Yeah, of course if you can get, like in the old old days, a celeron 300 that overclocks to 450, and is dead stable, it was noticeable, and if you had a droid 1, which overclocked (many did) with ease from 500 to 1000+ , then it was again, noticeable, just not a staggeringly 2 times increase, because there are too many other factors.
The number of bus errors, and retries and slowness of the original bus speeds, and other components makes for a not-quite-as-expected by the numbers 'increase'. I would still mess with it, but not for the obvious reasons. I like under-volting more, and over-clocking only the slightest bit where nothing ever crashes or FCs. The moment you overclock, you really shouldn't be asking questions about 'Why does blah blah netflix crash?' because it crashes because you overclocked, and nothing else matters until you stick a kernel back at stock in there.
The other thing I love about alternate kernels is that you've got control of what modules you either compile in or compile and load as .ko files. cifs, tun, ntfs, whatever, it is all very useful, so there are lots of good and not-as-good things about it.
One thing I hate is when a dev insists on creating a kernel that has a 'default' speed greater than stock so that you've instantly got an ordeal if you've got one of the many gizmos that will not overclock to his default (like 1.6 to pick a number out of a hat).. Just make them all start at default, then allow us , the users, to setup overclocking via testing with setcpu or some such thing. Much easier than basically bricking things right off.
I sometimes look at those guys that overclock 'seriously' (by 3-4 times) using a container of liquid nitrogen that lasts for ~5 minutes and it is all for bragging rights, setting records , etc and think they're insane, but that is also part of it. Some are happy if they can just post here that they got 9,000 mF on some test despite not being able to do anything else reliably.
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Click to collapse
Great post!
+1
Very philosophical ! ;-)
I guess what I am getting at is if you overclock to 1.2Ghz-1.3Ghz on the Transformer can you have a stable system that shows an appreciable improvement in responsiveness? Moving from hypothetical to actual...have you done this? Any specific kernel?
The engineer in me is looking for a definitive answer. ;-)
Thanks.
sstea said:
Very philosophical ! ;-)
I guess what I am getting at is if you overclock to 1.2Ghz-1.3Ghz on the Transformer can you have a stable system that shows an appreciable improvement in responsiveness? Moving from hypothetical to actual...have you done this? Any specific kernel?
The engineer in me is looking for a definitive answer. ;-)
Thanks.
Click to expand...
Click to collapse
Yeah, I've done this, just not on the TF yet. I'm working on a kernel right now that doesn't have OC built-in and activated at boot, so that we can use setcpu to screw around with it and find that 'sweet spot' that works for us, also under-over-volting. What I'd really like is to build in all the modules I like, setup over/under-clocking-volting and have it boot at 1 G. I mean, a dual-core 1G is nothing to sneeze at, and then try to ramp it up without screwing with over-volting immediately. I never like other peoples ROMs or Kernels because they have made their own crazy judgement calls. I like my own crazy judgement calls
Here's what I've noticed: When you have 'up-to-date' technology , as we do, in the TF, then overclocking that is totally stable makes a difference and it is noticeable. For me it's the FC's that kill the deal, but this chip and box appear to have plenty of headroom so I'm guessing that 1.2, 1.3, 1.4 are all good possibilities.
Example: My HTC Incredible phone has been overclocked to 1.1 from 1.0G for ~a year or so, and it doesn't FC, and it is faster, noticeably than at 1. It's only a 10% increase and yet it feels much quicker, so go figure. Those things are also subjective, so grain of salt... Example2: A stock droid1 is one I took to a double overclock, 550 to 1000, and yes it was faster at some things, but the underlying infrastructure didn't really support the faster CPU so I really never noticed a 100% increase that matched the clock speed. I left it that way for a year without any damages and it still boots up fine at 1 G.
In another post I started, I was asking what keys were required to boot 'safe mode' which exists in android OSs, and if I knew that, I'd try one of the OC'd kernels right now. IF not, I don't feel like unbricking again.
If you're interested, here's a good link for building your own: (generic android, not TF really:
http://www.droidforums.net/forum/rescue-squad-guides/31452-how-compile-your-own-kernel.html
Thanks for the response. With such a large community of Transformer users I am hoping to find a solid, conservative kernel that I can overclock with. Creating one myself is beyond my current technical capabilities.
Can anybody tell me how to do it? I think most of the heat (implies battery drain) and downgrading performance comes from the 4 A53 cores in LITTLE cluster, so I want to shuts all of them (if possible) and use only the two big cores.
Yes with resurrection rom and the custom kernel.
It is the A57 cores that overheat. I am not sure adding that much load is a good idea.
From my experience, CM13 from ketut has better CPU task management and seems to lower temps and battery consumption on normal usage. Of course playing games will also heat the device but it in opinion provides better sustained performance.
OK, so it's not so possible with official ROM, eh? I can't make any core offline (it goes back online too fast that setting 444 permission afterwards with && is too late ) even though perfd has been stopped. I wonder who really controls the cores...
leledumbo said:
OK, so it's not so possible with official ROM, eh? I can't make any core offline (it goes back online too fast that setting 444 permission afterwards with && is too late ) even though perfd has been stopped. I wonder who really controls the cores...
Click to expand...
Click to collapse
official ROM kernel uses core_ctl hotplug, how to configure read here
http://forum.xda-developers.com/xperia-z5/general/root-required-performance-battery-t3376233
int0x19 said:
official ROM kernel uses core_ctl hotplug, how to configure read here
http://forum.xda-developers.com/xperia-z5/general/root-required-performance-battery-t3376233
Click to expand...
Click to collapse
Aaa... so those are the culprits... nice info
Hi XDA community!
I was doing research in to the current custom kernels available for our phone. Pretty much every kernel developer advertises their kernel as having improved performance and battery. One of the problems I found is that it is quite difficult to compare the performance and battery of kernels without trying it out for a week or so. I thought for the benefit of not only myself (who doesn't have time to test every kernel), but for the community that it would be helpful to have a thread that compares kernels.
Each post being a short comparison of at least 2 kernels should be sufficient. Performance, battery life, conditions (e.g. ROM, heavy user? non-gamer? etc. ) and special features (that set it apart)of a kernel would be good ways to compare them. Perhaps a quick rundown of your current kernel and why it suits your needs best could be good as well.
This is not a thread to tell me what you think the best kernel is. I believe that all custom kernels have their merit being somewhere on the balance between battery life and performance + a few features and suiting different people based on their needs.
Gonna reply to this thread I made a while ago after a bit of testing. I think it would be a good starting point for anyone who is indecisive with kernels.
Today I thought I'd compare 2 kernels that I've been using a fair bit recently. Both are based on S7 edge firmware, but have counterparts for S8 ROMs. The disclaimer is that I didn't have time to try every version of the kernels, nor will I promise that my experience will be the same as yours.
Tkkg1994's Superstock vs Farovitus' Notorious kernel
The competitors
Superstock kernel
Created by the famous developer of Superman, Superstock, Batman and Ironman ROMs.
Recommended by the developer himself over his other more modded kernel (Superkernel)
Stock Samsung values for CPU and GPU speed
Safety net green
Other performance/battery enhancements as laid out on his page https://forum.xda-developers.com/s7-edge/development/kernel-superstock-v1-3-5-t3453462 and below in the special features section.
Notorious kernel
Most popular custom kernel (by thread activity and likes)
Under clocked cores
Safety net green
Comes underclocked: Big: 312-1872 small: 234-1586
stock value for CPU speed
Plenty of performance and battery tweaks outlined in his page https://forum.xda-developers.com/s7...orious-kernel-tw-dqd1-g93xx-g93xxd-3-t3600711 and below in the special features section.
They both sound pretty good, but it's the real life performance that matters right?
Versions used
I've used super stock 2.7.1 and 2.9 (the versions that came with superman ROM 2.6 and 2.7 respectively). 2.9 will be the one discussed today. I have found the performance quite similar between the 2 versions however.
I've used Notorious 1.9.1
Kernel Mods (that I used)
Both were kept very close to how the developers intended
I changed the to IO scheduler on Superstock to Zen
And I changed the internal IO scheduler on Notorious to Row, external to maple
Both I used Westwood TCP congestion control.
Both I kept with the stock governor (interactive)
no undervolt for notorious kernel
Conditions - my ROM and usage pattern
Superman ROM 2.7 with Magisk root
Debloated
Black theme, wallpaper and ui etc.
clock widget xperia running
Force doze with significant motion detector disabled
Greenify privileged mode (pretty much all social messaging apps greenified)
Magisk module to doze google play services
I turned off pretty much all the advanced features: smart alert, smart stay, don't turn on when dark etc.
Auto brightness on.
BT always on (connecting to car and smartwatch)
Location always on
4g, volte and viLTE on
WiFi off (I got plenty of data)
Charged to ~75% at night every day
Use was moderate. Involved BT audio on 15 minute drive to and from work. Variable tasks being done on phone: calls, texting, messaging (whatsapp, messenger lite), looking up internet, occasional remote desktop. 8-9hr day at work. Some messaging, calls, texting at home but less than at work.
No games on phone - I have a busy job and I have a PC, PS4 and WiiU.
Performance
Superstock has very good performance. Absolutely no lags. UI feels smooth and fluid. I don't game however.
Notorious feels smooth and snappy despite being quite underclocked. Developer sped up the boot animation fps. Maybe it's in my head (and therefore insignificant if any), but possibly a bit slower to start apps. No lags however. Again, I don't game on the phone.
Battery
Superstock
Very good battery. A fair bit better than stock. I could lose between 1-4% overnight (6-9hr sleep). Never bothered measuring SOT but the phone lost on average ~20-25% per day moderate use as outlined above.
Notorious
Excellent battery. On my off days, I found that notorious enters deep sleep faster than superstock leading to less idle drain. It also seems to drain battery slower when screen on. Would lose 1-3% over a 6-9hr sleep. Average day would use up about 12-17% battery moderate use as outlined above.
Special features
Superstock is a plain kernel that just works out of the box. Not many modding opportunities - can adjust clock speed within the stock range. No voltage change. Can use the 3 basic governors. conservative, interactive (stock), on demand. Can change IO scheduler and TCP congestion algorithm. Only notable feature is the safety net green. A few services disabled according to the developer, but that is about it.
Notorious is very customisable with mtweaks many governors to choose from (I only bother using interactive). Under/overvolt and under/overclock avaliable for CPUs. Under/overvolt and under/overclock available for GPU. Boeffla kernel wake lock blockers. IO scheduler change, TCP algorithm change. I changed very few settings, but it is also commonly undervolted. On the thread, people liked to use bluactive, impulse and relaxed governors rather than interactive. With Notorious, I found that undervolting didnt really increase battery life much and gave me the increased paranoia of silent corruption/ instability. I change the TCP and IO so that it theoretically optimises my user experience. Realistically, I found no difference compared to stock and it was more for my obssesive compulsive side.
Verdict
For a non-gamer like me who uses the phone for calling, messaging, internet, video, music notorious provides more than adequate performance with greater battery savings than superstock.
Superstock I'd imagine to have much greater performance under a big load. It was subjectively more responsive and faster when doing my low power tasks.
At the end if the day both were much better than stock for me in terms of battery. I'd say that Superstock would be more for performance and Notorious would be more for battery saving. Any questions or comments, ask away!
Eggleston11 said:
Gonna reply to this thread I made a while ago after a bit of testing. I think it would be a good starting point for anyone who is indecisive with kernels.
Today I thought I'd compare 2 kernels that I've been using a fair bit recently. Both are based on S7 edge firmware, but have counterparts for S8 ROMs. The disclaimer is that I didn't have time to try every version of the kernels, nor will I promise that my experience will be the same as yours.
Tkkg1994's Superstock vs Farovitus' Notorious kernel
The competitors
Superstock kernel
Created by the famous developer of Superman, Superstock, Batman and Ironman ROMs.
Recommended by the developer himself over his other more modded kernel (Superkernel)
Stock Samsung values for CPU and GPU speed
Safety net green
Other performance/battery enhancements as laid out on his page https://forum.xda-developers.com/s7-edge/development/kernel-superstock-v1-3-5-t3453462 and below in the special features section.
Notorious kernel
Most popular custom kernel (by thread activity and likes)
Under clocked cores
Safety net green
Comes underclocked: Big: 312-1872 small: 234-1586
stock value for CPU speed
Plenty of performance and battery tweaks outlined in his page https://forum.xda-developers.com/s7...orious-kernel-tw-dqd1-g93xx-g93xxd-3-t3600711 and below in the special features section.
They both sound pretty good, but it's the real life performance that matters right?
Versions used
I've used super stock 2.7.1 and 2.9 (the versions that came with superman ROM 2.6 and 2.7 respectively). 2.9 will be the one discussed today. I have found the performance quite similar between the 2 versions however.
I've used Notorious 1.9.1
Kernel Mods (that I used)
Both were kept very close to how the developers intended
I changed the to IO scheduler on Superstock to Zen
And I changed the internal IO scheduler on Notorious to Row, external to maple
Both I used Westwood TCP congestion control.
Both I kept with the stock governor (interactive)
no undervolt for notorious kernel
Conditions - my ROM and usage pattern
Superman ROM 2.7 with Magisk root
Debloated
Black theme, wallpaper and ui etc.
clock widget xperia running
Force doze with significant motion detector disabled
Greenify privileged mode (pretty much all social messaging apps greenified)
Magisk module to doze google play services
I turned off pretty much all the advanced features: smart alert, smart stay, don't turn on when dark etc.
Auto brightness on.
BT always on (connecting to car and smartwatch)
Location always on
4g, volte and viLTE on
WiFi off (I got plenty of data)
Charged to ~75% at night every day
Use was moderate. Involved BT audio on 15 minute drive to and from work. Variable tasks being done on phone: calls, texting, messaging (whatsapp, messenger lite), looking up internet, occasional remote desktop. 8-9hr day at work. Some messaging, calls, texting at home but less than at work.
No games on phone - I have a busy job and I have a PC, PS4 and WiiU.
Performance
Superstock has very good performance. Absolutely no lags. UI feels smooth and fluid. I don't game however.
Notorious feels smooth and snappy despite being quite underclocked. Developer sped up the boot animation fps. Maybe it's in my head (and therefore insignificant if any), but possibly a bit slower to start apps. No lags however. Again, I don't game on the phone.
Battery
Superstock
Very good battery. A fair bit better than stock. I could lose between 1-4% overnight (6-9hr sleep). Never bothered measuring SOT but the phone lost on average ~20-25% per day moderate use as outlined above.
Notorious
Excellent battery. On my off days, I found that notorious enters deep sleep faster than superstock leading to less idle drain. It also seems to drain battery slower when screen on. Would lose 1-3% over a 6-9hr sleep. Average day would use up about 12-17% battery moderate use as outlined above.
Special features
Superstock is a plain kernel that just works out of the box. Not many modding opportunities - can adjust clock speed within the stock range. No voltage change. Can use the 3 basic governors. conservative, interactive (stock), on demand. Can change IO scheduler and TCP congestion algorithm. Only notable feature is the safety net green. A few services disabled according to the developer, but that is about it.
Notorious is very customisable with mtweaks many governors to choose from (I only bother using interactive). Under/overvolt and under/overclock avaliable for CPUs. Under/overvolt and under/overclock available for GPU. Boeffla kernel wake lock blockers. IO scheduler change, TCP algorithm change. I changed very few settings, but it is also commonly undervolted. On the thread, people liked to use bluactive, impulse and relaxed governors rather than interactive. With Notorious, I found that undervolting didnt really increase battery life much and gave me the increased paranoia of silent corruption/ instability. I change the TCP and IO so that it theoretically optimises my user experience. Realistically, I found no difference compared to stock and it was more for my obssesive compulsive side.
Verdict
For a non-gamer like me who uses the phone for calling, messaging, internet, video, music notorious provides more than adequate performance with greater battery savings than superstock.
Superstock I'd imagine to have much greater performance under a big load. It was subjectively more responsive and faster when doing my low power tasks.
At the end if the day both were much better than stock for me in terms of battery. I'd say that Superstock would be more for performance and Notorious would be more for battery saving. Any questions or comments, ask away!
Click to expand...
Click to collapse
Hello,
Thank you for the very detailed review. :good:
May I ask how did you flash the notorius kernel ?
Did you installed the Superman ROM and then reflash the kernel over it ?
Thank you. :fingers-crossed:
Tqhao94 said:
Hello,
Thank you for the very detailed review. :good:
May I ask how did you flash the notorius kernel ?
Did you installed the Superman ROM and then reflash the kernel over it ?
Thank you. :fingers-crossed:
Click to expand...
Click to collapse
Glad I'ts helping someone choose, cos I was very on and off abuot which one i wanted until i actually did the tests.
This is not the right forum to post this lol. This is meant to be about kernel reviews. The notorious kernel forum itself however isnt very clear.
It's just simply installing via twrp. dont forget to clear davlik/art cache after installation. Also, you need to flash root afterwards. I recommend you dont flash the root that the kernel comes with and to flash the root separately as there have been some bugs regarding that and also so that you can get the most up to date root.
Eggleston11 said:
Glad I'ts helping someone choose, cos I was very on and off abuot which one i wanted until i actually did the tests.
This is not the right forum to post this lol. This is meant to be about kernel reviews. The notorious kernel forum itself however isnt very clear.
It's just simply installing via twrp. dont forget to clear davlik/art cache after installation. Also, you need to flash root afterwards. I recommend you dont flash the root that the kernel comes with and to flash the root separately as there have been some bugs regarding that and also so that you can get the most up to date root.
Click to expand...
Click to collapse
That discussion was very helping but the question the i have is that i am a heavy gamer and most of my battery drain is caused due to games... which one would u suggest for better gaming battery life from the above mentioned?
Xial Xahab said:
That discussion was very helping but the question the i have is that i am a heavy gamer and most of my battery drain is caused due to games... which one would u suggest for better gaming battery life from the above mentioned?
Click to expand...
Click to collapse
Generally speaking this depends on the performance you need. If you can get your games to run sufficiently fast underclocked like on notorious, it will improve your battery life more just like it does in general. If it's too slow that way you'll have to see if super helps over stock. You could also try notorious and up the clock to more stock values but test out undervolting on it (as mentioned that does pose some risk) and see if your particular chip can be stable at a nice undervolt. Undervolting at high clocks can potentially save you a lot of battery life, but it depends on whether your chip is a "good" one or not.
Flandry said:
Generally speaking this depends on the performance you need. If you can get your games to run sufficiently fast underclocked like on notorious, it will improve your battery life more just like it does in general. If it's too slow that way you'll have to see if super helps over stock. You could also try notorious and up the clock to more stock values but test out undervolting on it (as mentioned that does pose some risk) and see if your particular chip can be stable at a nice undervolt. Undervolting at high clocks can potentially save you a lot of battery life, but it depends on whether your chip is a "good" one or not.
Click to expand...
Click to collapse
Yep agreed => try games out on notorious. if they can work well on low clock speed, then keep it. Trying speeds between stock and notorious can work if the games are too laggy. Stock values may be necessary depending on what games you are using.
Undervolt may also help to improve performance while at lower clock speeds a less heat generated. Less voltage does also theoretically mean less power used. I have found the difference in battery life and heat with underclock to be quite insignificant. People calculate it to be 2-5% less power used. Given notorious already uses less than 1% per hour on average use for me. It means i'll be saving at best 5% of 1% so 0.02% per hour. Not much power saved and not worth in my opinion given the side effects.
Eggleston11 said:
Undervolt may also help to improve performance while at lower clock speeds a less heat generated. Less voltage does also theoretically mean less power used. I have found the difference in battery life and heat with underclock to be quite insignificant. People calculate it to be 2-5% less power used. Given notorious already uses less than 1% per hour on average use for me. It means i'll be saving at best 5% of 1% so 0.02% per hour. Not much power saved and not worth in my opinion given the side effects.
Click to expand...
Click to collapse
The key is to undervolt during gaming, not idle. Undervolt can give exponentially more power savings at high clock speed. I agree it's not going to help for low clock speed and isn't usually worth the risk to corruption. With my Nokia N900 (back when you actually had to milk out all the MHz you could just to get 3D games on a phone, or in my case MAMEing arcades i could greatly increase gaming time when i dropped the volts for the highest CPU frequencies.
I appreciate your careful review of the two kernels. I'm still trying to figure out the ROM jungle for my new S7 Edge. Are these kernel and ROMs you are talking about snapdragon compatible or it this thread purely in exynos territory?
Flandry said:
The key is to undervolt during gaming, not idle. Undervolt can give exponentially more power savings at high clock speed. I agree it's not going to help for low clock speed and isn't usually worth the risk to corruption. With my Nokia N900 (back when you actually had to milk out all the MHz you could just to get 3D games on a phone, or in my case MAMEing arcades i could greatly increase gaming time when i dropped the volts for the highest CPU frequencies.
I appreciate your careful review of the two kernels. I'm still trying to figure out the ROM jungle for my new S7 Edge. Are these kernel and ROMs you are talking about snapdragon compatible or it this thread purely in exynos territory?
Click to expand...
Click to collapse
Agreed that the ~5% savings would translate to a greater amount of power saved during gaming in theory. I dont personally game on my phone, so your experience on this is better than mine haha.
I have the G935F. As far as I understand these kernels are for Exynos only. Good luck if you are searching for a good development scene with the snapdragon version. There are a few ROMs and Kernels i think. I have no idea about quality.
Hi everyone,not sure if the subject has been discussed before or not. I tested my E6653 variant of the Z5 today on Antutu and was rather shocked at what i scored. Now i know Antutu scores arent a true reflection as scores are variable depending on device temp,apps running etc etc. But i am still at a loss becaurge the best my device scored was 78000. That is a whole 20000 lower than what Antutu says the average score is for the Z5.
My device is unlocked and rooted. Im currently running it on Mrom v2.4.8 with the default kernel for the rom. I have played around with the kernel settings by changing governors etc but with no better than the 78000 i scored. My question is,how do i get a better performing device without sacrificing any to little battery efficiency in the process? Does anyone maybe have any insight into this as i feel my phone greatly underperforming with the current setup.
Not sure if it's relevant, but my Z5C (7.11 stock rooted with Magisk) managed to score 95K in latest Aututu:
CPU: 31886
GPU: 35768
UX: 21834
MEM: 5176
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Mods I installed to help improve performance:
Green Kernel (For Z5C exclusively, pretty sure there is alternative around this forum)
FSC V5.1 (Very balanced thermal mod)
Brevent app (Eliminate bloated background processes)
Manually debloated (A must for stock rom, using settings app and SD Maid)
Note that 720p and 2GB RAM may effect my final scores, take them respectively. It normally hits 5hrs+ screen on time with moderate usage however I don't play games on my device, and overall it's quite responsive considering the SD810 except for multitasking.
I never liked MRom for how bloated it is at first installation with many underlay modifications that fail to meet my sony experience expectation. When in the worst cast scenario tho, there are always options to downgrade to 6.0 or custom roms.
So my Moto X Pure only gets around 5 hours SOT and around 2-3 hours playing games. I seen a 3200 mAh battery replacement on Amazon and I'm wondering if anyone has tried it? I'm using the Resurrection Remix OS with my CPU set to power save in the battery options. Please post your battery stats and ROM information so I can see if my phone would benefit from a battery change.
Hybrid Theory said:
So my Moto X Pure only gets around 5 hours SOT and around 2-3 hours playing games. I seen a 3200 mAh battery replacement on Amazon and I'm wondering if anyone has tried it? I'm using the Resurrection Remix OS with my CPU set to power save in the battery options. Please post your battery stats and ROM information so I can see if my phone would benefit from a battery change.
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LoL... With your SOT and game times, your battery is holding up pretty well. I would not expect much of an increase from any battery replacement you may get.
Regarding batteries from Amazon, be wary-especially of those claiming more mAh. Typically higher mAh means a larger battery so be skeptical. Based on what I have read in forums and reviews, it seems many of the batteries for this phone from Amazon, regardless of advertised mAh, have been hit or miss. Some manage to do well for 3 to 6 months then problems start.
aybarrap1 said:
LoL... With your SOT and game times, your battery is holding up pretty well. I would not expect much of an increase from any battery replacement you may get.
Regarding batteries from Amazon, be wary-especially of those claiming more mAh. Typically higher mAh means a larger battery so be skeptical. Based on what I have read in forums and reviews, it seems many of the batteries for this phone from Amazon, regardless of advertised mAh, have been hit or miss. Some manage to do well for 3 to 6 months then problems start.
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I lowered my GPU frequency to 300 MHz that seemed to help a lot especially when playing games my battery doesn't drain as fast. I even lowered my screen resolution to 720p and set my GPU frequency to 180 MHz. The OS is smooth but when I start playing some 3D games you can definitely notice FPS drop so I put it back at 300 MHz. I couldn't increase my battery by lowering my CPU frequency for some reason my battery life seems worse when I try to mess with the CPU. The only thing I managed to do was disable my big cores in kernel auditor when they aren't needed and setting my low memory killer to aggressive in kernel auditor seemed to help my battery as well. That's just my personal experience hopefully someone will get something out of it.
Hybrid Theory said:
I lowered my GPU frequency to 300 MHz that seemed to help a lot especially when playing games my battery doesn't drain as fast. I even lowered my screen resolution to 720p and set my GPU frequency to 180 MHz. The OS is smooth but when I start playing some 3D games you can definitely notice FPS drop so I put it back at 300 MHz. I couldn't increase my battery by lowering my CPU frequency for some reason my battery life seems worse when I try to mess with the CPU. The only thing I managed to do was disable my big cores in kernel auditor when they aren't needed and setting my low memory killer to aggressive in kernel auditor seemed to help my battery as well. That's just my personal experience hopefully someone will get something out of it.
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The CPU for the most part does pretty well scaling up and down based off processing needs. You probably just don't have CPU intensive apps so didn't notice much. You notice the GPU while playing games though. I think for the most part setting to a lower resolution might help with games at lower frequencies on the GPU in terms of maintaining higher fps at lower frequencies, but a 5.5 2K screen with simulated 720p probably doesn't net much battery life in other usage areas.
aybarrap1 said:
The CPU for the most part does pretty well scaling up and down based off processing needs. You probably just don't have CPU intensive apps so didn't notice much. You notice the GPU while playing games though. I think for the most part setting to a lower resolution might help with games at lower frequencies on the GPU in terms of maintaining higher fps at lower frequencies, but a 5.5 2K screen with simulated 720p probably doesn't net much battery life in other usage areas.
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Right I am able to keep my GPU on power save and it'll sit on 180 MHz and the OS is still smooth on 720p if I bump it up to 1080p I'll have to put the frequency at 300 MHz or else it'll lag. I noticed when I move through the OS the GPU will jump to unnecessary frequencies like 300 MHz or even 450 MHz. Keeping it locked to 180 MHz while using Firefox or watching YouTube helped a little bit. The main problem for me is the lack of kernels to choose from. I used this tutorial https://forum.xda-developers.com/nexus-5x/general/guide-advanced-interactive-governor-t3269557 to tune my CPU governor since the Nexus 5X has the same SOC but my rom Remix OS has a feature called CPU boost that I can't turn off unless I flash another kernel. The problem with the Moto X Pure is that it doesn't have many custom kernels. I managed to find one that works with my rom but the camera doesn't work. I could simply go to another rom but they lack the customization Remix has and some of them have SeLinux set to permissive and I don't really feel like dealing with escalation attacks and having my bank information stolen.
Hybrid Theory said:
Right I am able to keep my GPU on power save and it'll sit on 180 MHz and the OS is still smooth on 720p if I bump it up to 1080p I'll have to put the frequency at 300 MHz or else it'll lag. I noticed when I move through the OS the GPU will jump to unnecessary frequencies like 300 MHz or even 450 MHz. Keeping it locked to 180 MHz while using Firefox or watching YouTube helped a little bit. The main problem for me is the lack of kernels to choose from. I used this tutorial https://forum.xda-developers.com/nexus-5x/general/guide-advanced-interactive-governor-t3269557 to tune my CPU governor since the Nexus 5X has the same SOC but my rom Remix OS has a feature called CPU boost that I can't turn off unless I flash another kernel. The problem with the Moto X Pure is that it doesn't have many custom kernels. I managed to find one that works with my rom but the camera doesn't work. I could simply go to another rom but they lack the customization Remix has and some of them have SeLinux set to permissive and I don't really feel like dealing with escalation attacks and having my bank information stolen.
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Wow. Since I first got the phone 3 years ago, i personally just have had very little time to delve much into doing custom ROMs and kernels for this device due to work scheduling I'm moving to a new job this month and should have more time on my hands. I'm probably going to get back into things.
aybarrap1 said:
Wow. Since I first got the phone 3 years ago, i personally just have had very little time to delve much into doing custom ROMs and kernels for this device due to work scheduling I'm moving to a new job this month and should have more time on my hands. I'm probably going to get back into things.
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I'd compile a kernel for lineage based roms with the nougat modem but I'm not that smart I don't even have a computer to do it with lol.
So I went ahead and installed the EX Kernel Manager app and I downloaded the Hawktail governor profile. After doing that my battery went from 2-3 hours SOT to 4-6 SOT from 100%. When I play slither.io on the default CPU setup my battery would drop 10% every 10-15 minutes. With the Hawktail profile it drops 10% every 30-40 minutes. I thought this was incredible because NFC and Bluetooth was still on. I also found that the Alucard CPU governor gave me similar results during my observations. I really hope somebody else can benefit from this thread.
Here is the download link https://androidfilehost.com/?fid=24686679545610694
Remove the .txt extension and put it on your micro SD card or in the ElementalX folder. From the Ex Kernel Manager app go to CPU>Governor Options>Load then load the HawkTail file then click apply on boot.