hey guys,
just wanna to find out do undervolting & overclocking really does improve the
battery life & performance ?
Share your comment here thanks!
As for battery life, I've noticed no real difference, no matter the version.
As for performance... it's definitely visible in benchmarks, a bit less in gaming
Graveir said:
As for battery life, I've noticed no real difference, no matter the version.
As for performance... it's definitely visible in benchmarks, a bit less in gaming
Click to expand...
Click to collapse
I did see an improvement in HD games, Verry little or no Lag at all
Graveir said:
As for battery life, I've noticed no real difference, no matter the version.
As for performance... it's definitely visible in benchmarks, a bit less in gaming
Click to expand...
Click to collapse
agreed too that the battery life just same as before >.<
if i did not use overclocking,does the battery life is better ?
i see no difference in battery life in either ways.
I´ve just saw difference while changing use of features like wi-fi, 3G and GPS, Overclock to me doesn´t made any difference on battery life. About UnderVolt I didn´t test any
I'm surprised the power saving mode isn't talked about much. I use to have the TF700 w. the dock and when I turn on the this mode it last almost as long as the 700 w. the dock attached. This is the way a power mode setting should be done bcuz there is virtually zero lag which doesn't make sense since the cpu is underclocked to 1ghz. No disrespect to Asus and the TF700, but their power saving mode is useless since everything becomes so laggy. I honestly want to find out how Samsung can achieve this bcuz I really see no point in it being clocked at 1.4ghz.
Sent from my GT-N8013 using Tapatalk 2
Pic of CPU clock at and battery life?
Sent from my SGH-T989 using xda app-developers app
Sent from my GT-N8013 using Tapatalk 2
lols u recharged it...
and use cpu spy to show ur cpu clock plz
I can confirm. Putting note 10.1 in CPU power savings mode will limit the Max CPU to 1ghz. No lag either. No need for screenshots of CPU spy. Just put your note into power savings mode with CPU one ticked. Then open CPU spy. Reset the timer. Then refresh it. Now you will see your CPU maxes out at 1ghz.
I get great battery life in normal usage. But if I want stellar battery life and not near a charger, ill put it into power savings mode. I do the same thing with my Galaxy S3.
Web browsing, most games, and everything still work just fine on power savings mode. For even longer lasting battery use the screen low power level also. Amazing how well my tablet and phone performs on power savings. For the first time, my Note 10.1 and Galaxy S3, I feel no need or rush to root or anything. Both devices perform so well out the box.
demandarin said:
I can confirm. Putting note 10.1 in CPU power savings mode will limit the Max CPU to 1ghz. No lag either. No need for screenshots of CPU spy. Just put your note into power savings mode with CPU one ticked. Then open CPU spy. Reset the timer. Then refresh it. Now you will see your CPU maxes out at 1ghz.
I get great battery life in normal usage. But if I want stellar battery life and not near a charger, ill put it into power savings mode. I do the same thing with my Galaxy S3.
Web browsing, most games, and everything still work just fine on power savings mode. For even longer lasting battery use the screen low power level also. Amazing how well my tablet and phone performs on power savings. For the first time, my Note 10.1 and Galaxy S3, I feel no need or rush to root or anything. Both devices perform so well out the box.
Click to expand...
Click to collapse
Another decent app to monitor CPU usage is cool tool, real time, always on top
demandarin said:
I can confirm. Putting note 10.1 in CPU power savings mode will limit the Max CPU to 1ghz. No lag either. No need for screenshots of CPU spy. Just put your note into power savings mode with CPU one ticked. Then open CPU spy. Reset the timer. Then refresh it. Now you will see your CPU maxes out at 1ghz.
I get great battery life in normal usage. But if I want stellar battery life and not near a charger, ill put it into power savings mode. I do the same thing with my Galaxy S3.
Web browsing, most games, and everything still work just fine on power savings mode. For even longer lasting battery use the screen low power level also. Amazing how well my tablet and phone performs on power savings. For the first time, my Note 10.1 and Galaxy S3, I feel no need or rush to root or anything. Both devices perform so well out the box.
Click to expand...
Click to collapse
same here.1st android device that i m not looking for custom rom
Here I thought it was my ignorance not wanting to or feeling the need to root. I have only had one other android device that being a BN Nook 16G using the help here I did root that. It is nice to know I'm not the only one that doesn't feel compelled to make drastic changes, at this point at least.
hy there,
im on latest sokp rom on my g2 (d802)
i want to get more juice from my battery, so I setup my core setings at 1036 mhz max and minimum 300 mhz.
wil this provide me a lot off battery in real life and will it also reduce heat ? even if i watch hd movie or play graphical games
In theory yes it should but not as much as you think cause it will be offset because it will have to keep a higher frequency for a higher period of time. Temperature should be reduced a lot but keep in mind games will lag if they need the extra power
drivenby said:
In theory yes it should but not as much as you think cause it will be offset because it will have to keep a higher frequency for a higher period of time. Temperature should be reduced a lot but keep in mind games will lag if they need the extra power
Click to expand...
Click to collapse
hmm, well after i underclocked i played asphalt 8 for like 20 mins and game performance did not changed significantly. and i feel that the phone is now cooler then before when multitasking stuff.
is there also another way that can realy increase battery life besides underclocking.
abati said:
hmm, well after i underclocked i played asphalt 8 for like 20 mins and game performance did not changed significantly. and i feel that the phone is now cooler then before when multitasking stuff.
is there also another way that can realy increase battery life besides underclocking.
Click to expand...
Click to collapse
you also can try custom governors
Hey there, you may be suffering a placebo effect, it can give you a little extra juice, but in my opinion you get most of your battery with these 4:
1. Reduce timeout to 15sec.
2. Adjust screen brightness to be as low as possible (lux helps with this)
3. Eliminate vibrations of any kind (haptic feedback, notications that make your phone vibrate ex. whatsapp) and so on...
4. Data (Use Wifi if possible, 2g when you are not using your phone and airplane mode in some cases extend your battery for a lot too)
Don't expect to get more than 30 min of extra use changing your kernel configurations. ALTHOUGH if you are a heavy user (let us say, in this case, a heavy gamer) there are some kernel configurations you should check.
Also remember, if a task takes you 30min but only consumes 1 % per 30 min compared to doing the exact same task in 30seconds consuming the same 1% which one is worth it?
Phones hardware is way above the software we have available at this time, underclocking and undervolting is an option and you won't feel the difference but, as I've stated before, those are not the main issues of the battery drain.
I hope I've helped you out!
Hello,
I have a peculiar problem with my OnePlus Two
The faster A57 cores don't get activated, I have tried using Antutu, played Asphalt 8 And NFS NL for hours.
But the cores just won't get triggered
I'm using A1 CPU tool to monitor the same.
Even CPU Z wouldn't show me any activity on the other 4 cores while Antutu was running.
Any ideas? It's brand new can be returned
Oxygen OS - 2.1.1
A2003_14_151011
Sent from my C6602 using XDA Free mobile app
Denhot said:
Hello,
I have a peculiar problem with my OnePlus Two
The faster A57 cores don't get activated, I have tried using Antutu, played Asphalt 8 And NFS NL for hours.
But the cores just won't get triggered
I'm using A1 CPU tool to monitor the same.
Even CPU Z wouldn't show me any activity on the other 4 cores while Antutu was running.
Any ideas? It's brand new can be returned
Oxygen OS - 2.1.1
A2003_14_151011
Sent from my C6602 using XDA Free mobile app
Click to expand...
Click to collapse
I just installed A1 CPU to verify your issue.
It shows cores 0,1,2,3,4 are used at 1344ghz for me as well.
When i check with synapse (i'm on AK kernel) it shows all cores are used.
I guess it's a limitation with A1 CPU tool. Try with other tool that supports such architecure.
I was sceptical on the same but, out of the box I remembered seeing 1777 MHz frequencies.
Thanks a lot
I shall try more tools and get back.
Though I think if you're on a different kernel and had the A1 CPU tool been correct it would be redundant, Because core allocation would be done on kernel level (in my knowledge).
Sent from my iPad using Tapatalk
I know that it was already discussed but maybe someone has found a solution.
The problem is that performance of device gradually decreases proportionally to the level of the battery.
For example:
- battery is 90%, Real Racing 3 runs perfectly,
- battery is 45%, some lags appear during gameplay
- battery is 10%, heavily FPS drop, almost impossible to play
Battery saver is turned off, device is cold in all tests.
If I would like to save my battery level - I will turn on battery saver manually,
but I WANT to have good game experience not depending on battery level
This is really crazy.
Tested on stock OOS 2.1.1, with stock kernel, with Boeffla an AK, tested on Exodus ROM - everywhere I can see this weird behaviour.
May be some system files must be edited to overcame this issue?
jemcik said:
I know that it was already discussed but maybe someone has found a solution.
The problem is that performance of device gradually decreases proportionally to the level of the battery.
For example:
- battery is 90%, Real Racing 3 runs perfectly,
- battery is 45%, some lags appear during gameplay
- battery is 10%, heavily FPS drop, almost impossible to play
Battery saver is turned off, device is cold in all tests.
If I would like to save my battery level - I will turn on battery saver manually,
but I WANT to have good game experience not depending on battery level
This is really crazy.
Tested on stock OOS 2.1.1, with stock kernel, with Boeffla an AK, tested on Exodus ROM - everywhere I can see this weird behaviour.
May be some system files must be edited to overcame this issue?
Click to expand...
Click to collapse
Hi Jemcik, hi Denhot!
I'm facing the same issues on my new device and it's definately not normal!
With a battery level of 19% I was not able to get the 4 A57 cores online, which results in lower system performance. Have you found a solution?
@Denhot!
Maybe we should rename the thread into: IS OPT PERFORMANCE REALLY DEPENDENT ON BATTERY STATUS AND IS IT A ROM FEATURE OR AN ISSUE!?
I think, one of the kernel devs should be able to answer this question.
ollimi1 said:
With a battery level of 19% I was not able to get the 4 A57 cores online...
Click to expand...
Click to collapse
It looks like some system configuration files with kernels activation policy have to be edited,
but I haven't found yet which files exactly.
jemcik said:
It looks like some system configuration files with kernels activation policy have to be edited,
but I haven't found yet which files exactly.
Click to expand...
Click to collapse
I've never experienced such a function!
CPU power depending on battery voltage!? 62k with full battery, 49k with 20% battery both with same CPU temps!
Hopefully not a general problem on our side with the motherboard Voltage Regulator or something.
Have you been to a kernel thread and asked this question? If not, I will ask this in AK's kernel thread. Maybe he knows more about it!
The 4 high performance cores will only be activated when needed. What app are you using to check the core usage? Every now and then you should see 2 of the high performance cores sometimes coming to life every now and then, with the other 4 power efficent cores being more busy. Use CPU-Z to check.
Due to the way Oxygen OS's stock kernel works, only 2 of the high performance cores will ever be active, alternating between the 4 cores in an attempt to keep the phone cool and not throttle as often. If you want all 4 high performance cores to be active as well as overclocking it back to its original speeds, you'll need to flash a custom kernel.
jemcik said:
I know that it was already discussed but maybe someone has found a solution.
The problem is that performance of device gradually decreases proportionally to the level of the battery.
For example:
- battery is 90%, Real Racing 3 runs perfectly,
- battery is 45%, some lags appear during gameplay
- battery is 10%, heavily FPS drop, almost impossible to play
Battery saver is turned off, device is cold in all tests.
If I would like to save my battery level - I will turn on battery saver manually,
but I WANT to have good game experience not depending on battery level
This is really crazy.
Tested on stock OOS 2.1.1, with stock kernel, with Boeffla an AK, tested on Exodus ROM - everywhere I can see this weird behaviour.
May be some system files must be edited to overcame this issue?
Click to expand...
Click to collapse
Hi,
would like to share I don't have a similar experience, with NFS NL or Asphalt, phone was consistent with no lags even when it got unbearable to hold.
I as playing and simultaneously screen mirroring over to a TV.
Going from 65 to 25% over a long course.
I normally won't let my battery fall below 20%.
So the thing about Li-ion/pro is that as you go lower voltage decreases so to provide same power draw current increases.
Basically it would heat up faster.
That can be a reason combined with that their might be inbuilt measures to save battery like you said, nor as an engineer I would recommend you to stress your phone at those levels.
I can't explain the lag at 45%, didn't find it might try real racing 3 later to check.
Sent from my iPad using Tapatalk
trapistasajt said:
The 4 high performance cores will only be activated when needed. What app are you using to check the core usage? Every now and then you should see 2 of the high performance cores sometimes coming to life every now and then, with the other 4 power efficent cores being more busy. Use CPU-Z to check.
Due to the way Oxygen OS's stock kernel works, only 2 of the high performance cores will ever be active, alternating between the 4 cores in an attempt to keep the phone cool and not throttle as often. If you want all 4 high performance cores to be active as well as overclocking it back to its original speeds, you'll need to flash a custom kernel.
Click to expand...
Click to collapse
This is consistent with what I've noticed. The time It didn't, a simple reboot helped solve it and it hasn't occurred since.
Also these tools can't monitor the other cores, if you're rooted why not try synapse as helkat suggested
Sent from my iPad using Tapatalk
Denhot said:
This is consistent with what I've noticed. The time It didn't, a simple reboot helped solve it and it hasn't occurred since.
Also these tools can't monitor the other cores, if you're rooted why not try synapse as helkat suggested
Sent from my iPad using Tapatalk[/QUOTE
Thanks man!
I know how the S810 should work!
But I thought the performance issues have only to do with the temps. But now it seems it have also to do with the battery level.
It would be good if someone tries to reproduce the following to verify it:
1. One run Antutu benchmark with fully charged battery and room cool temps.
To be sure the conditions are the same, shut the display off for one or two minutes, than start display again, kill all recent apps and run Antutu test and note the results.
2. Than wait or do something until your battery is down to 20%, shut the display off for the same time, kill recent apps and start Antutu test run again and compare the results.
I've also tried the same after a reboot, with always the same results.
With 100% I get scores between 60 and 66k and with lower capacity (20%) I get only 48 till 50k!
I am not interested about the benchmark results, but I need to know if this only occurs on my side.
Click to expand...
Click to collapse
So, guys!
I have tested it the last few weeks and it is a fact that the performance in benchmarks is dependent by the battery level.
We have tested it with 3 devices and it is always the same.
But thank God, it seems on the devices perfomance themselves (in apps/ui) this has no effect!
But each one can replicate this behavior very easy!
ollimi1 said:
Hi Jemcik, hi Denhot!
I'm facing the same issues on my new device and it's definately not normal!
With a battery level of 19% I was not able to get the 4 A57 cores online, which results in lower system performance. Have you found a solution?
@Denhot!
Maybe we should rename the thread into: IS OPT PERFORMANCE REALLY DEPENDENT ON BATTERY STATUS AND IS IT A ROM FEATURE OR AN ISSUE!?
I think, one of the kernel devs should be able to answer this question.
Click to expand...
Click to collapse
I have the same issue! When battery level goes lower than 20%, my A57 kernels become offline. I checked this with CPU-Z and PerfMon. And this is the same on stock or custom kernel. Now I am using Boeffla kernel. The most frustrating is that my UI suffer from this. I have lot of lags in simple apps, such as calculator or some messengers.
Same issue here, there are threads in one plus forums.
I think the threashold level is at 40 % ?? They made this to keep the battery up. You can also see faster battery drop till the 40-30% mark then it is harder to kill the battery.
I am also dissapointed in this, maybe we can search the kernel sources ? Or is there a daemon app that triggers this?
I received the phone with 20%-30% battery, started an antutu knowing how powerfull 810 chip is, then boom 45k same as the previos phone i had with 801 chipset...i was like what the fxck....runing antutu again with full battery - 66k.
well i have run benchmark in back ground with few game and apps .. and checked with cpuz max that i have notice was around 50-60% cpu load still 2 off those a57 cores were off using this device for 2-3 days it always turns off 2 cores for me rest 6 is working most of the time :/ Even in battery saver mode .. i am not sure if this is a cpuz issue as i have not rooted my device yet so cant say properly ..
Also i face some freq. benchmark issue like in benchmark it scores around single core - 690 multicore - 2.6K .. and if i restarts device it scores normal - 1.1K and 4.5K .. i have no idea whats wrong with this :/
20% Battery Mark
The drop in performance at 20% Battery is standard behavior of the Rom and Stock Kernel. The Big Cluster (A57) is completly shut down to save Battery. If you dont want this you have to use a custom Kernel which is able to switch this Battery saving strategy off. Boeffla Kernel for example can do that.
Read http://www.anandtech.com/show/9828/the-oneplus-2-review/2.
They "optimized" the soc.....
No they just turned off some cores so there is no heat problem.
So I think this is my first and latest oneplus.
they've hit the mark! What the hell, i think they must be sued for false marketing. Its just like buying a car with 400 hp and those hp are only there when i'm parked or listen to music, if i'm on the highway or on the ridge the car has 100 hp...wtf :|
Killer2k8 said:
they've hit the mark! What the hell, i think they must be sued for false marketing. Its just like buying a car with 400 hp and those hp are only there when i'm parked or listen to music, if i'm on the highway or on the ridge the car has 100 hp...wtf :|
Click to expand...
Click to collapse
Calm down lol it's actually good on their part. Shutting down A57 cores on low battery is a good thing because the A53 cores use much lesser battery. If you're out on a trip and have 10% battery, with the A57 cores this will probably drain off within an hour of intermittent usage. When only the A53 cores are active, the battery life will increase greatly.
Companies design phones for average users, not just gamers. If you don't want this feature, root your phone, flash boeffla's kernel and disable the BCL Battery Driver. It's as simple as that
Yup, you read that right, lol. I'm going to install the app that downscales the screen resolution but I want to go lower then 720p if possible, for maximum power saving.
I'll be installing Linage OS 11 over the weekend.
I use the phone for GPS/Waze and to make calls. I've always hated the fact that it was full HD as I know from using 720p phones that there is no visible difference at all! Most importantly, I want to save battery life as the screen is constantly on for navigation.
What is the lowest resolution it can support without getting distorted? its a 5.1" screen so odd screen size. Would 480 x 800 work? If so, what DPI would that be?
Thanks!
480 X 854 is what I'm using for some games.
Any lower and you will have black bars around the screen.
Do note that not all apps downscale well. I also considered using the device in a permanent state of low resolution, but some apps simply did not look good.
Also, I'm not really sure if there is any big battery gain from this; I simply did it for the performance gain in games.
Thanks for the reply.
Theoretically wouldn't it be using double the CPU (thus more battery) to generate double the pixels at all times?
NokiaBricks said:
Thanks for the reply.
Theoretically wouldn't it be using double the CPU (thus more battery) to generate double the pixels at all times?
Click to expand...
Click to collapse
By that logic, my OnePlus 5 should have double the battery life of the S8, because it has half resolution.
In reality they are fairly close in regards to battery life. Or so reviewers say. Battery drain tests also show the flagships not that far apart.
Most power is consumed by the screen itself, not the CPU.
Sorry I meant using double the CPU/SoC in the processing of pixels, not double battery usage.
Example, to process all information at 1080p the SoC will use 10% of its power to process it, however at less then 720p it would use 5%? In theory anyway.
I think.... Lol.
NokiaBricks said:
Sorry I meant using double the CPU/SoC in the processing of pixels, not double battery usage.
Example, to process all information at 1080p the SoC will use 10% of its power to process it, however at less then 720p it would use 5%? In theory anyway.
I think.... Lol.
Click to expand...
Click to collapse
As I said, the screen itself uses the most battery. Doesn't matter if it's 4K or HD.
Yes, higher resolution requires more processing power, but it's negligible.
You might as well reduce the CPU frequency to about 1 GHz and you will have the same result.
It won't make a huge impact on the battery life. Not the one you expect at least.
Or you can simply test it yourself. The app I'm using is called Screen Shift.
See if