Database Users

Interactive Vs Conservative Governor? CDMA Battery Life Tips

What is this nonsense people are saying about 4 or 5 hours with screen on and their phone is still at 20%? GTFO.... Usually I would say about 3 hours of screen on and i'm dead. I can get like 18 hrs or so lightly, and by lightly, I mean only using it for a few text and check email, maybe some fb just to check inbox and such, lightly, using the phone (with my reception).
I know the Fascinate is better hardware, and I switched for the GPU among other reasons (2 of em for free...=P) but, on my nexus, I still find that the interactive governor ramped up to the max freq. (1113Mhz) less. Of course, I am using the 1150 nonvoodoo from geeknik, but I doubt I will make it 4 or 5 hours of screen on time.w
How can you use the phone, with the screen on, and not do anything that uses the battery. I mean, without cyanogen, it was cool that I can make it through my day, easy, close to out of box (getting to superclean dj05 is about 100 less flashes that I made it through with the n1/sense/cyan nightlys/test roms/etc.).
But now I want more, the price I have to pay I guess for the .3 inches of gained screen is not using the phone heavily in order to save battery!? That sucks. I used to hammer my iPhone and I rarely made it through the day, but I hammered it with atleast 4 or 5 hrs of screen on time sometimes, and it would make it atleast 8 hours... that thing would idle wayyyy better on GSM Edge than CDMA I guess, as with my T-Mobile N1, it idled wayy better, than this CDMA phone. Is there a way to put it on 1x instead of having it always on 3g? There isnt a setting to uncheck, and you cant get in *#*#4636#*#* on CDMA. I tried that immediately after unboxing to get off 3g when I wasnt using net apps, and usually that gave better signal on GSM, saving battery.
Check out my interactive battery test on my N1 that I did, the interactive setting eventually fell out of favor because it ramps up to the max... instead of ramping up accordingly like OnDemand, and not too slowly like Conservative. Again, why does Fascinate use conservative?
http://forum.xda-developers.com/showthread.php?p=7370179 thats my Interactive Governor Battery Test on my N1 I did in the summer time...
I just wanted to start this thread so we can get a consensus on what works best, and for charging this battery. I used to charge my N1 an extra 1.5 hrs with it off after android says it was at 100. That way it idled on 100 instead of immediate drain. An extra 3 or so hours of battery life if you use it right.
CPU governors control exactly how the CPU scales between your "max" and "min" set frequencies. Most kernels have "ondemand" and "performance." The availability
********I want to be able to choose between ondemand and powersave when my battery gets low. On this phone, as I did with the N1.
ondemand - Available in most kernels, and the default governor in most kernels. When the CPU load reaches a certain point (see "up threshold" in Advanced Settings), ondemand will rapidly scale the CPU up to meet demand, then gradually scale the CPU down when it isn't needed.
conservative - Available in some kernels. It is similar to the ondemand governor, but will scale the CPU up more gradually to better fit demand. Conservative provides a less responsive experience than ondemand, but can save battery.
performance - Available in most kernels. It will keep the CPU running at the "max" set value at all times. This is a bit more efficient than simply setting "max" and "min" to the same value and using ondemand because the system will not waste resources scanning for the CPU load. This governor is recommended for stable benchmarking.
powersave - Available in some kernels. It will keep the CPU running at the "min" set value at all times.
userspace- A method for controlling the CPU speed that isn't currently used by SetCPU. For best results, do not use the userspace governor.

akaine2001 said:
What is this nonsense people are saying about 4 or 5 hours with screen on and their phone is still at 20%? GTFO.... Usually I would say about 3 hours of screen on and i'm dead. I can get like 18 hrs or so lightly, and by lightly, I mean only using it for a few text and check email, maybe some fb just to check inbox and such, lightly, using the phone (with my reception).
I know the Fascinate is better hardware, and I switched for the GPU among other reasons (2 of em for free...=P) but, on my nexus, I still find that the interactive governor ramped up to the max freq. (1113Mhz) less. Of course, I am using the 1150 nonvoodoo from geeknik, but I doubt I will make it 4 or 5 hours of screen on time.w
How can you use the phone, with the screen on, and not do anything that uses the battery. I mean, without cyanogen, it was cool that I can make it through my day, easy, close to out of box (getting to superclean dj05 is about 100 less flashes that I made it through with the n1/sense/cyan nightlys/test roms/etc.).
But now I want more, the price I have to pay I guess for the .3 inches of gained screen is not using the phone heavily in order to save battery!? That sucks. I used to hammer my iPhone and I rarely made it through the day, but I hammered it with atleast 4 or 5 hrs of screen on time sometimes, and it would make it atleast 8 hours... that thing would idle wayyyy better on GSM Edge than CDMA I guess, as with my T-Mobile N1, it idled wayy better, than this CDMA phone. Is there a way to put it on 1x instead of having it always on 3g? There isnt a setting to uncheck, and you cant get in *#*#4636#*#* on CDMA. I tried that immediately after unboxing to get off 3g when I wasnt using net apps, and usually that gave better signal on GSM, saving battery.
Check out my interactive battery test on my N1 that I did, the interactive setting eventually fell out of favor because it ramps up to the max... instead of ramping up accordingly like OnDemand, and not too slowly like Conservative. Again, why does Fascinate use conservative?
http://forum.xda-developers.com/showthread.php?p=7370179 thats my Interactive Governor Battery Test on my N1 I did in the summer time...
I just wanted to start this thread so we can get a consensus on what works best, and for charging this battery. I used to charge my N1 an extra 1.5 hrs with it off after android says it was at 100. That way it idled on 100 instead of immediate drain. An extra 3 or so hours of battery life if you use it right.
CPU governors control exactly how the CPU scales between your "max" and "min" set frequencies. Most kernels have "ondemand" and "performance." The availability
********I want to be able to choose between ondemand and powersave when my battery gets low. On this phone, as I did with the N1.
ondemand - Available in most kernels, and the default governor in most kernels. When the CPU load reaches a certain point (see "up threshold" in Advanced Settings), ondemand will rapidly scale the CPU up to meet demand, then gradually scale the CPU down when it isn't needed.
conservative - Available in some kernels. It is similar to the ondemand governor, but will scale the CPU up more gradually to better fit demand. Conservative provides a less responsive experience than ondemand, but can save battery.
performance - Available in most kernels. It will keep the CPU running at the "max" set value at all times. This is a bit more efficient than simply setting "max" and "min" to the same value and using ondemand because the system will not waste resources scanning for the CPU load. This governor is recommended for stable benchmarking.
powersave - Available in some kernels. It will keep the CPU running at the "min" set value at all times.
userspace- A method for controlling the CPU speed that isn't currently used by SetCPU. For best results, do not use the userspace governor.
Click to expand...
Click to collapse
Thank Samsung for breaking ondemand on every sgs phone.
Sent from my SCH-I500 using XDA App

Well what else can you contribute to this thread? Thanks for letting me know that the ondemand is just broken on galaxy s phones. So basically its interactive ... or laggy UI experience. And if you've never used a ondemand kernel, you wouldn't notice the difference but i certainly do. It just takes too long sometimes for it to wake and other things. I have my screen off at 400 mhz but still that is higher than the 256 i was using on the nexus one and it used to wake immediately.
I was reading today and I found that ondemand is pretty much the way to go so i wonder if we could bounty up enough would somebody unbreak it...

akaine2001 said:
Well what else can you contribute to this thread? Thanks for letting me know that the ondemand is just broken on galaxy s phones. So basically its interactive ... or laggy UI experience. And if you've never used a ondemand kernel, you wouldn't notice the difference but i certainly do. It just takes too long sometimes for it to wake and other things. I have my screen off at 400 mhz but still that is higher than the 256 i was using on the nexus one and it used to wake immediately.
I was reading today and I found that ondemand is pretty much the way to go so i wonder if we could bounty up enough would somebody unbreak it...
Click to expand...
Click to collapse
You are doing something wrong. Conservative is not choppy on my device and the CPU will always ramp up faster than a human being can judge the response time.
Sent from my SCH-I500 using XDA App

My phone makes it the entire day with heavy use, this means about 20 - 10 min phone calls one or two lasting 30 min, texting my wife all day at work, checking emails, and angry birds for at least 1 hour a day i love that game but I suck at it lol. Something that I found is that the phone will last almost an hour of being on the phone after it hits 0%. In my pocket it lasted 4 hours at 0% the day before yesterday. I thought maybe this is on purpose so you have more then enough time to make it to a charger. When I first downloaded angry birds I played it for three hours straight with the screen at full brightness (i always keep it at full brightness, looks prettier that way) I know it was three hourse because it was while i was waiting at the hospital I got there a little before 7 and wasnt called until 10. Overall I am very pleased with the battery life of this phone not so much with other aspects but battery life and lag never came into my mind as a complaint for this phone, except with all the stock touchwiz stuff.

As adrynalyne said, CPU's scaling changes faster than human's perception. It's your phone or setting that's having an issue.

4 hours at 0%?
The little graphic samsung gives you in the stock battery is misleading.
In my brief experience with it, I got the following impression.
full battery graphic: you have between 100% and 75% left.
<full battery: 75%-50%
Half battery: 50%-25%
low battery: 25%-15%
empty: 15%-0%
This may not be quite right, but you get the idea. It has been a while, but stock battery is pretty misleading. Samsung reports [more than] half empty [always] as being half full!
Want a more trailer indicator? You can get an accurate battery mod (via a theme for instance) or you can download an app to check current battery % left (i use osmanager - do not leave this app running in the background! )
Assuming your phone lasts 27 hours or so unplugged with no use at all, I would say 4 hours at "zero" battery makes sense.
For my phone, the display uses an average of 3.5x as much power as the rest of its functionality (total of 1/4.5x lifespan in active use vs. pocket)
Swyped w/ XDA App. When in doubt, mumble.

I meant "reliable" not trailer.

I get about 5 hours of screen time with little voice calls on wifi.

I don't know if I am just one of the lucky ones but my phone gets between 30 and 36 hours on a single charge, having even made it to 44 hours on a very rare occasion and that's without setcpu profiles even set.

Wtf... my phone is brand spanking new and I get about 4ish hours of screen time on a full charge, with the lowest brightness + screen filter app set at 50.6% reduced light. I get like 3 hours without screen filter on.... wtf. This is running on conservative or interactive the whole time..... wtf!!! With wifi on and 0 extra screens or Widgets using launcher pro without animations... wtf!!!
Sent from my SCH-I500 using XDA App

+1... stock battery indicator is not accurate. Get the accurate battery mod.
soba49 said:
4 hours at 0%?
The little graphic samsung gives you in the stock battery is misleading.
In my brief experience with it, I got the following impression.
full battery graphic: you have between 100% and 75% left.
<full battery: 75%-50%
Half battery: 50%-25%
low battery: 25%-15%
empty: 15%-0%
This may not be quite right, but you get the idea. It has been a while, but stock battery is pretty misleading. Samsung reports [more than] half empty [always] as being half full!
Want a more trailer indicator? You can get an accurate battery mod (via a theme for instance) or you can download an app to check current battery % left (i use osmanager - do not leave this app running in the background! )
Assuming your phone lasts 27 hours or so unplugged with no use at all, I would say 4 hours at "zero" battery makes sense.
For my phone, the display uses an average of 3.5x as much power as the rest of its functionality (total of 1/4.5x lifespan in active use vs. pocket)
Swyped w/ XDA App. When in doubt, mumble.
Click to expand...
Click to collapse

Terror_1 said:
I don't know if I am just one of the lucky ones but my phone gets between 30 and 36 hours on a single charge...
Click to expand...
Click to collapse
That's because you don't use your phone.
Go play NFS for 3 hours and get back to us.
MoShiBa said:
...screen filter app set at 50.6% reduced light. I get like 3 hours without screen filter on...conservative or interactive the whole time...
Click to expand...
Click to collapse
What's the screen filter app? Conservative and interactive? That's SetCPU?
I wouldn't worry about these guys coming in here saying they're getting 2 days of use either. They're not using the phone anywhere near as much as you. I've had 3 of these things and know 2 guys with them. They all got the same battery life. You don't see anyone posting any screenshots, do you?

Me and my gfs fascinate gets about same battery life in our apt and hers is still DI01 and i'm on DJ05... she has jts 11/16 kernel and i have the 12/21 voodoo5 and we get about the same battery life... dependent on how much we use the phone. .... so just use your phone, and charge it as necessary... its better for the type of battery we use anyways in our phones... **************************************************************************************closed.**************************************************************************************

Battery Saving Apps (4.0.4 Aurora ICS)

Hi there many of you have thought about battery saving apps.
Do they really work?
Are there some apps that instead of saving battery just drain your battery even more?
Do you know any methods that really save battery?
Just post your oppinions about this subject.

nikeradsn said:
Hi there many of you have thought about battery saving apps.
Do they really work?
Are there some apps that instead of saving battery just drain your battery even more?
Do you know any methods that really save battery?
Just post your oppinions about this subject.
Click to expand...
Click to collapse
Battery saver apps are useless. just turn of data, sync,WiFi, Bluetooth when not in use. decrease screen brightness and screen timeout to 30 seconds. Use 245-806 with ondemand goveror for better battery.

mittalmailbox said:
Battery saver apps are useless. just turn of data, sync,WiFi, Bluetooth when not in use. decrease screen brightness and screen timeout to 30 seconds. Use 245-806 with ondemand goveror for better battery.
Click to expand...
Click to collapse
I've read many people saying that using the ondemand governor wouldnt save that much battery because of the continuous search for cpu activity, actually i'm using performance at 1024 and i also have another profile with 806 performance aswell.
I have to test it better in order to see which governor saves more battery.

I think a good set may useful

nikeradsn said:
I've read many people saying that using the ondemand governor wouldnt save that much battery because of the continuous search for cpu activity, actually i'm using performance at 1024 and i also have another profile with 806 performance aswell.
I have to test it better in order to see which governor saves more battery.
Click to expand...
Click to collapse
I used to use 806 on demand, 1024 ondemand and 1200 ondemand... now I'm using 1024 performance, and I dont see any battery difference.. damn thing still drains.

The battery lasts 4/5 days on idle, what more do you want? It's par for the course.

why do you need the phone to stay on idle? for that you could buy a 10$ one =S

nikeradsn said:
why do you need the phone to stay on idle? for that you could buy a 10$ one =S
Click to expand...
Click to collapse
Because it's an indicator of battery performance and proves there's nothing wrong with battery life on Aurora, despite what many believe. Having ~1 day of battery life with heavy usage and 4-5 days (or even more) on idle is on par with the battery specs.

faekplastik3s said:
Because it's an indicator of battery performance and proves there's nothing wrong with battery life on Aurora, despite what many believe. Having ~1 day of battery life with heavy usage and 4-5 days (or even more) on idle is on par with the battery specs.
Click to expand...
Click to collapse
Actually we all know that the battery life in aurora its not full optimized. what i mean is what can we do in order to get the best performance without having to spend so much battery life. maybe its not possible but who knows

Fact: ICS produces more traffic than GB. A lot of apps (like browser) use more memory, so background processes die more quickly. You cannot except to get the same kind of battery performance out of an ICS rom and that's the end of it. This has nothing to do with Aurora.

When I dont need to use the phone I put the governor in powersave with a low Mhz and the battery is more safe with little use.
Phone become a little more slow but work.
When I really need to use the phone I change the governor to Smartessv2

[Q] Switching off cores to save energy?

Heya All. So far Im running a Milestone 1 (Single Core, 600Mhz) - so Im used to my phone being kinda slow.
My question would be if you could simply switch of 1 - 3 cores on the nexus or simply tell the OS to not utilize them.
In my theory the phone should still be fast enough to handle most of the tasks, but saving battery.
Question 1: Do you think that's possible?
Question 2: Do you think that would save battery?
I guess it would save battery, although the last working core would have to do more work.
Any answers / ideas are welcome =)

Android does that by him self.
Also every (4) cores runs on 15-20% eats less power than one core to maxs.
Sent from my LT26i

Yeah, but don't you think that 1 core at 100% is better in terms of efficiency than 4 cores at 25% ?

Titan2189 said:
Yeah, but don't you think that 1 core at 100% is better in terms of efficiency than 4 cores at 25% ?
Click to expand...
Click to collapse
No, the opposite is true. It is more efficient to power 4 cores at 25% than one at 100%.
Of course efficiency depends on the SoC used, in this case the S4 is highly efficient.

Titan2189 said:
Yeah, but don't you think that 1 core at 100% is better in terms of efficiency than 4 cores at 25% ?
Click to expand...
Click to collapse
Basically CPU can process only one task at time. If you have four CPUs (4 cores) you can process 4 task at the same time.

Titan2189 said:
Heya All. So far Im running a Milestone 1 (Single Core, 600Mhz) - so Im used to my phone being kinda slow.
My question would be if you could simply switch of 1 - 3 cores on the nexus or simply tell the OS to not utilize them.
In my theory the phone should still be fast enough to handle most of the tasks, but saving battery.
Question 1: Do you think that's possible?
Question 2: Do you think that would save battery?
I guess it would save battery, although the last working core would have to do more work.
Any answers / ideas are welcome =)
Click to expand...
Click to collapse
1. Yes, technically speaking it's possible - but you won't be able to do it with stock ROM.
2. No. I doubt that. If you use one core and the core gets overheaded due to high load, then it's the opposite of energy saving. Don't bother tinker to much with core scheduling, since such tasks are buried deep in the US kernel. There've been tons of research putting into how to utilize multicore systems effectively, and as a user I would advise against tinkering with such low-level management. My point is, are you sure you can do it better than hundreds (or thousands) engineering hours spending on the kernel?

Epic
This is exactly what I'm gonna do.
I can live with a wee bit of slowness as long as the battery live is long enough.
So I'll undervolt and underclock as much as possibe... 800 mhz are sufficient for me.
And the ability to clock up whenever I need to...

I was planning to underclock too - probably to around 1Ghz.

Underclocking is different from core scheduling. Under locking definitely saves battery , though it comes with performance trade off. However, disabling cores randomly WILL NOT save battery and probably do the opposite.
I guess some people can tinker the kennel to try optimize the scheduling. But that's the job of developers, I'm against users venturing into such areas
Sent from my Galaxy Nexus using Tapatalk 2

You have to be careful though with underclocking...
Although your CPU is slower, it also takes more clock cycles to complete! So don't go throwing it into 200Mhz range lol.
In the overclocking world though, you can OC a LOT higher on one core, but that's about all you get from disabling other CPU's

Only 4 cores are used

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 :|
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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

4 cores stopped

Hi all,
I have cpu z installed and I'm not rooted. It generally uses all 8 cores but when I accidentally opened it I saw that it was only using 4 cores. I decided to restart and it is still using 4 cores. Is this normal because my g5 plus always uses all 8 cores.

Your in low power or battery saver mode... look at the battery symbol.. I can't remember if it kicks in at 5% or 15% battery automatically, then turns off when you connect the charger... It sometimes takes a few minutes for everything to kick back in. I would bet after getting a decent charge it was back to normal?
There is also a issue with Nougat at newer reporting CPU usage incorrectly even in rooted devices... been talked about a lot, something in the stock Moto firmware (or maybe that was a different Moto, I get them confused sometimes).

Ok thanks. Apparently cpu z was wrong.

the cores are reduced to 4 when u are on battery saver.

On thanks. The weird part was I didn't turn the battery saver.

DarthMaul14 said:
On thanks. The weird part was I didn't turn the battery saver.
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It's automatic at a certain battery level by default.

Oh ok. Does the same thing apply for quad cores and hexacores.

DarthMaul14 said:
Oh ok. Does the same thing apply for quad cores and hexacores.
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It will throttle them, although the exact implementation varies somewhat depending on the actual processor. littleBIG architecture tends to be that the BIG cores get shutdown, on more standard architecture like the SD625 they will get throttled to 50-75% of maximum speed, and others may just get a couple random cores disabled, it depends on the CPU and how Qualcomm/MediaTek/whoever engineered it.

Ok thanks!