Database Develop

Battery usage - typical Display values

Given that the display is widely regarded as one of the two biggest drawers of power/battery life on the N1 (the other being the radio/cell standby), and given that my battery usage breakdown *always* has Display at the top (by a large margin), I thought it might be interesting to see what other people's Display usage hovers around so we can build up a "operating range"...
(apologies if anyone has done this before, I did a few searches but nothing significant came up - please point me to previous posts if it has already been covered)

not exactly seeing an option for a Poll...would recommend setting one up before we get 100s of posts to comb through

bloke226 said:
not exactly seeing an option for a Poll...would recommend setting one up before we get 100s of posts to comb through
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you got there darn quick - cheers for voting though!

it depends on what rom u have. my battery usage for the display was significantly different from cyanogen to desire rom.

nellyspageli said:
it depends on what rom u have. my battery usage for the display was significantly different from cyanogen to desire rom.
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that was one of the things that prompted me to do the poll, as I'm familiar with a Desire with Sense that reports around 20%
unfortunately I don't think i can also capture the ROM here (kernel would have been nice too), but I wanted to - and think you may have a point...

Moved as not Android Dev.

Yeah, unfortunately if you are getting a low display usage if you use it a lot means that the rest of your system is really hogging the power. Cyanogenmod with a high display usage is great because it means the rest of the system is running very efficiently.

Clarkster said:
Yeah, unfortunately if you are getting a low display usage if you use it a lot means that the rest of your system is really hogging the power. Cyanogenmod with a high display usage is great because it means the rest of the system is running very efficiently.
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It could mean a few different things, not just that. This is not a very scientific poll, sorry.

Thanks for this Poll. I was beginning to think that maybe my Nexus One was defective because the screen used so much of the battery. Unlike my HTC Magic, where the Cell Standby/Phone Idle was king.

The screen is supposed to be the highest drain. That means that the OS and all your apps are very efficient and not out of control.

just FYI, it seems on the bleeding edge kernels that a couple of kernel authors are producing at the moment, that Display usage is down. I am typically seeing no more than 40% in the stats now (down from around 60%) - will update once the kernel dust settles!

this poll isnt really effective, i have seen my screen usage from 10% all the way up to 89%, from what ive seen the percentage is based off of how long since the phone has been unplugged from a charger to the amount of time you were actually using it(had the screen on)
i can run my battery life into the ground in 6 hours or i can make it last 34 hours(max from full charge to shut down with all the fancy stuff turned off)

[Q] Tweaks to extend battery life?

I am sitting here, testing my battery drain in "nothing going on" mode. Phone is on but asleep, WIFI/GPS/3G all turned off. I'm actually having trouble getting the battery to lose charge - wish we always had THAT problem. Anyway, it's not of much use in this fashion, but I did want to establish a baseline.
My specific question is about processor modes. I have a kernel (I assume, not the ROM) with an associated voltage control app. In that app, I can manage my clock speeds. The question is: would I theoretically get better battery life by limiting my clock to lower speeds? And if no one has done this test, or knows the answer in theory, can we discuss the best way to provide a constant processor drain on the phone (although one that isn't tied to speed like I assume many of the tests would be) so that I can make the observations in a reasonable time span - a sixty minute test that drains 20-30% of the battery would seem to be about what I'm looking for. As I said above, with nothing going on, I haven't drained a single % off the battery in 90 minutes.
I do a lot of backpacking and hiking, and the ability to use the phone and its GPS over a period of 5 days without carrying 5 spare batteries would be a real godsend.

There is a thread on here somewhere that lowering the clock speed actually increases battery consumption under load, as the processor has to work longer to do a task.

nickm50 said:
There is a thread on here somewhere that lowering the clock speed actually increases battery consumption under load, as the processor has to work longer to do a task.
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+1
Don't lower too much for any reason. For e.g., if u have a overclocked kernel at 1280, u could scale it down to 1000, but don't go beyond that. Values over 800 are used very less unless there is a task demanding that much CPU.
Plus, by math, a task that takes 5 seconds at 1280 speed would take 8-9 seconds at 600-800 levels. So I wouldn't recommend reducing clock speed to such levels, even in standby mode.

I haven't found the thread about underclocking increasing battery drain, but it seems most people believe that canceling overclocking, and also undervolting, will extend battery life. I'll fool around with that for a while.

Soccer_Dad said:
I haven't found the thread about underclocking increasing battery drain, but it seems most people believe that canceling overclocking, and also undervolting, will extend battery life. I'll fool around with that for a while.
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Yes. Cancelling overclocking means setting at 1000 from 1200 and 1280 or other speeds over 1000.
Under-volt to some extent, but not too much, esp at higher speeds.

diablo009 said:
Under-volt to some extent, but not too much, esp at higher speeds.
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Yea, in theory, if you under-volt too much, it's going to stress the device to meet the action requirements for the required action. Right now, everything on the phone is calibrated to run on around 3.7v or just a little bit lower, so if a certain process doesn't acquire enough voltage or suck enough amperage from the battery, you'll get one of the common results: 1)Random shutdowns or 2)Battery drain.

vunuts said:
Yea, in theory, if you under-volt too much, it's going to stress the device to meet the action requirements for the required action. Right now, everything on the phone is calibrated to run on around 3.7v or just a little bit lower, so if a certain process doesn't acquire enough voltage or suck enough amperage from the battery, you'll get one of the common results: 1)Random shutdowns or 2)Battery drain.
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It would lead to stress on CPU too 'cos it would be like putting regular gas and expecting peak hp out of a sports car. I can notice a difference in pickup and power between regular and premium gas in my car when I need quick pickup. For normal use it performs good, but u never know when u need that optimum power. Same with our phone CPU too.

diablo009 said:
Like putting regular gas and expecting peak hp out of a sports car.
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Great analogy..... But..... You can just disable the knock sensor in the car and bypass the OBDII codes that pop up Yes, I am a gearhead lol. But in a sense, this is exactly what we are doing to our phones, trying to run with the minimum and expect the maximum.
And that brings me to this quick fix: Undervolt as much as possible, install a Nitrous Express kit for those times when you're in need of optimal power
I just don't mess with the OC and UV personally. I'm running everything based off of jk4 with Setiron's kernel with the standard lag-fix that's pre-applied with it, and I got rid of any... hmmm, I don't want to say "useless" apps, but I guess unnecessary or unproductive for me. If I show off my phone, people see how quick it is and like the customization of my launcher and how cool it looks, that's about the flashiest thing on my phone, but once you open the app drawer, it's all business.

Are you satisfied with performance on your Nexus 6?

So I was wandering if you're happy with your phones as of right now. I've always dreamed of having a stock Nexus device, and finally I god mine 1 year ago, and honestly lately I've been a little disappointed. I'm running stock android, no root, it's completely untouched. I've tried some ROMs like PureNexus, but I switched back to stock. Lately I found this phone extremely laggy in random situations, even when not performing heavy tasks. Also the phone gets EXTREMELY hot extremely easily, and when it's hot it lags even more to the point it's barely usable. When it is charging it becomes soooo sooooo slow and super hot, I'm almost forced to stop using it. Am I the only one experiencing these issues? Are you disappointed with your phone too?

you do realize that by running stock, you are stuck with the stock cpu setup? and thats where big differences come from, how you set up your cpu. with the way i have my cpu set up, my n6 is never choppy nor even slughtly slow.. never. my n6 is the beast that everyone wants.

leongunblade said:
So I was wandering if you're happy with your phones as of right now. I've always dreamed of having a stock Nexus device, and finally I god mine 1 year ago, and honestly lately I've been a little disappointed. I'm running stock android, no root, it's completely untouched. I've tried some ROMs like PureNexus, but I switched back to stock. Lately I found this phone extremely laggy in random situations, even when not performing heavy tasks. Also the phone gets EXTREMELY hot extremely easily, and when it's hot it lags even more to the point it's barely usable. When it is charging it becomes soooo sooooo slow and super hot, I'm almost forced to stop using it. Am I the only one experiencing these issues? Are you disappointed with your phone too?
Click to expand...
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All devices are a little different... I'm running N preview 3... And I'm completely satisfied, runs amazing for a two year old device.
Here is the main schedule of how I use my device:
In the morning, I charge up to around 80-90%. The device is off. By the end of the day, it's normally at around 30-40%. I don't game, and don't use my phone for much other than texting, social media, and the occasional web browsing/googling.
Mine does get warm at times and hot while charging, but that's expected of any electronic device. Try a charger with a lower wattage.
All the lagginess that I've run into always occurs with extended periods of use. Try shutting the phone off at night and not leaving it on charge all night. Also, a complete internal storage wipe won't do any harm .
An amazing app to help performance, battery life, and overheating is Greenify. It is literally the only app that I use root access for (I would totally root just to use this app). I kinda use it a bit obsessively, manually hibernating every time I leave an app, even though I have auto-hibernation enabled. Know which apps are memory hogs. Make sure to keep your eye on them (snapchat, facebook, etc.).
Hope I helped, may have gone a bit overboard on answering this.
Cheers!

simms22 said:
you do realize that by running stock, you are stuck with the stock cpu setup? and thats where big differences come from, how you set up your cpu. with the way i have my cpu set up, my n6 is never choppy nor even slughtly slow.. never. my n6 is the beast that everyone wants.
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How's your CPU set up? And does your setting compromise battery?

leongunblade said:
How's your CPU set up? And does your setting compromise battery?
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no, no comprising battery. but im more after performance, since i get 5h sot no matter what. i use the ondemand governor(98 up threshold and 15000 sampling rate) with the deadline scheduler. everything else that i do isnt as important than setting my governor/scheduler. i have it set to hand around the lower cpu when not doing much, then jumping to top cpu speed as soon as its needed.

I hate my nexus 6 when I charge it, I cant use it super slow I'm going to change it with xiaomi redmi note 3 pro soon. 209 euros for a beast

fedef12evo said:
I hate my nexus 6 when I charge it, I cant use it super slow I'm going to change it with xiaomi redmi note 3 pro soon. 209 euros for a beast
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http://forum.xda-developers.com/showthread.php?p=67447224/

simms22 said:
no, no comprising battery. but im more after performance, since i get 5h sot no matter what. i use the ondemand governor(98 up threshold and 15000 sampling rate) with the deadline scheduler. everything else that i do isnt as important than setting my governor/scheduler. i have it set to hand around the lower cpu when not doing much, then jumping to top cpu speed as soon as its needed.
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So if I install cyanogenmod 13 could you help me set the way you did? I mean just tell me in which menu I should go and what I should modify. It would be greatly appreciated! I usually get 3h of screentime, you get 2 hours more, that's amazing. Also could you tell me what kernel should I use with cyanogenmod 13?

I'm just shaking my head. I've never had these problems. Lagginess?? Nope. I get pretty good battery life and I've really only used 3 ROMs; Chroma, Purte Nexus and now the setup in my signature. for the last few months

HipKat said:
I'm just shaking my head. I've never had these problems. Lagginess?? Nope. I get pretty good battery life and I've really only used 3 ROMs; Chroma, Purte Nexus and now the setup in my signature. for the last few months
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Do you think that Pure Nexus or cyanogenmod are better than stock? What settings should I change after installing new ROMs to get the best performance/battery?

leongunblade said:
Do you think that Pure Nexus or cyanogenmod are better than stock? What settings should I change after installing new ROMs to get the best performance/battery?
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I can only speak for Pure Nexus (Especially the new build on 6/21), but it smokes the stock ROM from Google. Very smooth scrolling, fluid animations, fast app opening....It's just better imho.
Gotta remember, this phone is 1.5 years old...While it was spec heavy when it came out, time is catching up with it

leongunblade said:
Do you think that Pure Nexus or cyanogenmod are better than stock? What settings should I change after installing new ROMs to get the best performance/battery?
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There is no best.. That's why no one is answering g you.. Its user dependent we all use them differently

The phone is great at full battery. Anything above 40 percent. Under that... Not as good. Speakers crackle, CPU cores shut down and no matter what I do I can't override it. It gets super bad at about 20 percent where I have to raise the clock speed to 1.7 ghz from the 1 GHz I run normally since it is a stuttery mess that slow on 2 cores. So, for me the battery saving features make the battery life worse. Not to mention battery life is so random. I'll get a day and a half or more one day and the next not even get 12 hours. Doing very similar things, very similar screen on time of about 3 hours. The highest screen on time I got was 4 or 5 hours with pure nexus, but I'm on cyanogemod now and it doesn't last more than about 3 and a half often.

nascar48 said:
The phone is great at full battery. Anything above 40 percent. Under that... Not as good. Speakers crackle, CPU cores shut down and no matter what I do I can't override it. It gets super bad at about 20 percent where I have to raise the clock speed to 1.7 ghz from the 1 GHz I run normally since it is a stuttery mess that slow on 2 cores. So, for me the battery saving features make the battery life worse. Not to mention battery life is so random. I'll get a day and a half or more one day and the next not even get 12 hours. Doing very similar things, very similar screen on time of about 3 hours. The highest screen on time I got was 4 or 5 hours with pure nexus, but I'm on cyanogemod now and it doesn't last more than about 3 and a half often.
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sounds like its an issue with your set up? why the heck would you buy a nexys 6 only to lower its performance to a dual core? i use my n6 every day to its max. i set up my cpu to work like a beast! but, no matter what, i ALWAYS see at the very least 5 hours sot. anyways, what it sounds like is that you need to learn to set up your device a bit better, like screen brightness.. do you realize that the screen uses more battery than any other part of the phone? i keep my brightness at about 5%. and for every 30% i raise it, i lose 1 hour sot. anyways, theres just so much other stuff to try out.

simms22 said:
sounds like its an issue with your set up? why the heck would you buy a nexys 6 only to lower its performance to a dual core? i use my n6 every day to its max. i set up my cpu to work like a beast! but, no matter what, i ALWAYS see at the very least 5 hours sot. anyways, what it sounds like is that you need to learn to set up your device a bit better, like screen brightness.. do you realize that the screen uses more battery than any other part of the phone? i keep my brightness at about 5%. and for every 30% i raise it, i lose 1 hour sot. anyways, theres just so much other stuff to try out.
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No I don't put it at dual core. It's just that at 20% or less battery the phone shuts 2 cores off.
---------- Post added at 10:21 PM ---------- Previous post was at 10:20 PM ----------
and to be fair.... A dual core Nexus 6 still smokes the ancient droid RAZR m I had before this.

nascar48 said:
No I don't put it at dual core. It's just that at 20% or less battery the phone shuts 2 cores off.
---------- Post added at 10:21 PM ---------- Previous post was at 10:20 PM ----------
and to be fair.... A dual core Nexus 6 still smokes the ancient droid RAZR m I had before this.
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ahh, sorry.. i thought you weakened it yourself, my bad. it just lowers the cpu speed to 19xxmhz. at 40%, it gets lowered to 22xxmhz. but ill be honest, its a rare day when my phone goes under 50%, usually its on thd charger by that time.

leongunblade said:
Do you think that Pure Nexus or cyanogenmod are better than stock? What settings should I change after installing new ROMs to get the best performance/battery?
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I've learned that pretty much anything aosp based is pretty much the winner in terms of performance and stability and just overall because there's less stuff going on... Chroma or Pure Nexus is the heaviest I would go.
And use Greenify! I explained it in my earlier response...
Franco kernel was pretty sick when I used it with Chroma and I got awesome battery life with practically stock settings. I think the only thing I did was have the cpu underclock at 25%... But I rarely ever got to below 40%...
And there's always battery saving mode!
I always get decent performance no matter what I'm doing because the N6 is such a beast

leongunblade said:
Do you think that Pure Nexus or cyanogenmod are better than stock? What settings should I change after installing new ROMs to get the best performance/battery?
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Click to collapse
I don't do anything special. I usually use the kernel with the stock settings that comes with whichever ROM I'm on. I remove bloat and apps I don't use. When I was running stock/rooted, I'd use a custom kernel but again with the default settings

You try ondemand on b14ckb1rd kernel ......
4h+ screen on and very good performance!
https://www.dropbox.com/s/t3ku0q7msavbonu/Screenshot_20160622-002517.png?dl=0

So I really like the performance of this phone. It's fast and good, and the camera is adequate... Until things go south and I want to smash it against a wall. Mostly the problems start when battery drops under 40%. While I know cores get disabled, and performance gets limited, it's just horrible. From what I understand flashing a custom rom will make things more manageable? I've flashed ROMs in the past and had positive experiences with CM. Will Cm13 do the job?

Red Magic Vs OnePlus 5T speed test

Hello guys, I've got the OnePlus 5T and I was looking to upgrade to the Red Magic eventually but after watching that speed test video https://youtu.be/okGb8lqg8fA I don't see the RM being any faster and the active cooling seems to be a gimmick of some sort as it runs hotter than the OnePlus 5T as shown in that video. I know the firmware is not final but I seriously doubt they'll do any miracles especially in the stock version...but in the same time I'm scared of getting the Chinese version because it probably won't support Play Store and so on. What do you guys think, should I keep the OP5T?

Well hopefully we'll see more optimization before long on the RM. I haven't had any heat issues, and it has seemed cooler than most. Even when I was running an app to intentionally drain the battery by activating everything it didn't get that hot.
Overall for general performance, you won't see much performance difference between the two. They use a lot of the same components. Theoretically you should see some performance gains with game boost on because it locks the last four cores to their max frequency. No operations used trying to dynamically adjust. Really depends on if the app would even benefit from the frequency boost though.

Harfainx said:
Well hopefully we'll see more optimization before long on the RM. I haven't had any heat issues, and it has seemed cooler than most. Even when I was running an app to intentionally drain the battery by activating everything it didn't get that hot.
Overall for general performance, you won't see much performance difference between the two. They use a lot of the same components. Theoretically you should see some performance gains with game boost on because it locks the last four cores to their max frequency. No operations used trying to dynamically adjust. Really depends on if the app would even benefit from the frequency boost though.
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I guess if the game button triggers the full potential of the CPUs that's why it heats up more than the OP5T which never runs on 100% but somehow manages pretty much the same frame rates. You must be right about whether an app can actually utilise the full potential or not.

skromnia said:
I guess if the game button triggers the full potential of the CPUs that's why it heats up more than the OP5T which never runs on 100% but somehow manages pretty much the same frame rates. You must be right about whether an app can actually utilise the full potential or not.
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Old post revived. But did you see the stress test of antutu in that video ? Nubia tries to stay almost to 100% all the time. That's how a gaming aka performance phone should be.

ben cherian said:
Old post revived. But did you see the stress test of antutu in that video ? Nubia tries to stay almost to 100% all the time. That's how a gaming aka performance phone should be.
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How much battery and CPu temp you have while idle?

Question Any idea if 12.0 rom has better thermals than the 12.5 roms?

Has anyone compared if the 12.0 releases have better thermal performance as compared to the 12.5 release?
My K20Pro running on 12.0 is much cooler than my 11Ultra running 12.5. Sure, people have been saying that the snapdragon 888 runs hot but at the same time I've been seeing reports that other devices include the Redmi Note series are also experiencing heat issues after updating to 12.5.

Honestly for me heating has never been an issue, what do you think a good thermal would be like for you?

Probably like not reaching 39C for anything non-gaming or video calling activity?

Mine is not reaching it

Good for you. Many others are unfortunate like me

What is your room temp?

lambstone said:
Good for you. Many others are unfortunate like me
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I felt the same way. I used it for 2 days with 12.0.9 when i got the mi11ultra and i didnt feel the heat. When i updated to 12.5 e felt it.
wondering if its possible to downgrade without bootloader unlocked?

xNAPx said:
What is your room temp?
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Room temp doesn't matter, not when it comes to the 11Ultra. With AC on at a comfy 24C as opposed to just a fan with a room temp of 29C its still the same heating issues just a matter of the ramp up time for heat.
xwonic said:
I felt the same way. I used it for 2 days with 12.0.9 when i got the mi11ultra and i didnt feel the heat. When i updated to 12.5 e felt it.
wondering if its possible to downgrade without bootloader unlocked?
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Damn, so its much better on 12.0.9? I'm going to flash 12.0.9 this weekend. AFAIK, downgrading either way will require a wipe and I think you'll need to unlock BL either way.

May be not what you are looking for, I rooted the phone for CustoMIUIzer tweak. I also installed Franco kernal and there I underclocked the kernal CPU by 25% (75% working) and optimized its GPU. This has dramatically improved the thermals and battery performance. Idle temp of the phone drops to 25C regularly. For the past one day, it has not reached 37C when doing routine browsing, calling and texting etc. The temp jumped to 40C during HD video playback, and once to 41C while playing angry birds. During quick charging at high ambient temp, it touched 44C once. Normally with the Mi quick wireless charger (80W), the temp variates between 40-43C.
Im yet to notice the anticipated drop in performance of the phone. For routine games and HD video playback, 75% performance of this beast is enough so far. It is as smooth as it is supposed to be.

hellodrsoul said:
May be not what you are looking for, I rooted the phone for CustoMIUIzer tweak. I also installed Franco kernal and there I underclocked the kernal CPU by 25% (75% working) and optimized its GPU. This has dramatically improved the thermals and battery performance. Idle temp of the phone drops to 25C regularly. For the past one day, it has not reached 37C when doing routine browsing, calling and texting etc. The temp jumped to 40C during HD video playback, and once to 41C while playing angry birds. During quick charging at high ambient temp, it touched 44C once. Normally with the Mi quick wireless charger (80W), the temp variates between 40-43C.
Im yet to notice the anticipated drop in performance of the phone. For routine games and HD video playback, 75% performance of this beast is enough so far. It is as smooth as it is supposed to be.
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Buy the fastest most expensive cpu on the market and then cripple it!?
You could have just bought a mid ranger and saved a pile of money.....

speedtripler said:
Buy the fastest most expensive cpu on the market and then cripple it!?
You could have just bought a mid ranger and saved a pile of money.....
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According to my daily use of the phone, I do not need the full processor power. Seventy-five percent power is enough for that. For some long tasks, such as reading a lengthy pdf or google maps on a road trip, even 50% CPU power may be enough, granting enhanced battery performance and heat management. For the most intensive tasks, I can restore it to its original might (or even overclock it for that matter) just by toggling a switch, if that shall be desired. Options are good to have. A software fix and aggressive management of heat officially by Xiaomi, the point here by OP, will be welcomed of course.

speedtripler said:
Buy the fastest most expensive cpu on the market and then cripple it!?
You could have just bought a mid ranger and saved a pile of money.....
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actually a snap865 is really really fast and more then capable of running everything except gamming in comparison, and if you don't game high 3d games then you don't need the full power of the snap888 which is 25% faster.
I actually paid 850€ for mostly the camera and the media comfort, so i have to agree with hellodrsoul, if your main goal is have a phone for this purposed(no hardcore gaming) then capping it is a good thing,
also yeah Xiaomi is lacking in the optimization department.
on March everyone was stating in news about the mi 11 ultra
World’s First Full Phase Change Heat Dissipation Technology​either it sucks or xiaomi software team is at blame.

hellodrsoul said:
According to my daily use of the phone, I do not need the full processor power. Seventy-five percent power is enough for that. For some long tasks, such as reading a lengthy pdf or google maps on a road trip, even 50% CPU power may be enough, granting enhanced battery performance and heat management. For the most intensive tasks, I can restore it to its original might (or even overclock it for that matter) just by toggling a switch, if that shall be desired. Options are good to have. A software fix and aggressive management of heat officially by Xiaomi, the point here by OP, will be welcomed of course.
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The CPU is smart enough to not run at 100% when it's not necessary......

speedtripler said:
The CPU is smart enough to not run at 100% when it's not necessary......
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Yes, it generally is smart enough but it is overheating for some people. There, one has to intervene...

hellodrsoul said:
May be not what you are looking for, I rooted the phone for CustoMIUIzer tweak. I also installed Franco kernal and there I underclocked the kernal CPU by 25% (75% working) and optimized its GPU.....
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Hold on, Franco Kernel Manager you mean? I don't believe there's a custom kernel yet

lambstone said:
Hold on, Franco Kernel Manager you mean? I don't believe there's a custom kernel yet
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Yes, Franco Kernal manager. The link is https://play.google.com/store/apps/details?id=com.franco.kernel
You are right. There are no custom kernals available yet. But the FKM has the option to underclock the CPU and GPU and for me it works flawlessly.