Database Users

[Q] Battery

So I have my phone running Ice Glacier 1.1.6 everything is fine but like I see a significant drop in battery from not much use. and it says display is taking most of the battery power. I have auto brightness on and not many widgets.. Any ideas ??

Do as I did change your blacklight settings and don't use auto bright. Then disable some service using 3rd party apps and trust me there is alot of them that you will never use or need so get rid of them from even starting and if it even restarts have it shutdown. I am also using IGv1.1.6 as I flashed it last night and normally comparing it with IGv1.1.5 its better. Also scale your mCPU with SetCPU and when idle underclock it normally its 800mhz on avg load. Don't waste your battery trying to OC it lol just so you can brag about benchmark. Do this 3 you will see improvement, most folks always talk about uptime but we talk about awake time as thats what really matters.

STHNS said:
Do as I did change your blacklight settings and don't use auto bright. Then disable some service using 3rd party apps and trust me there is alot of them that you will never use or need so get rid of them from even starting and if it even restarts have it shutdown. I am also using IGv1.1.6 as I flashed it last night and normally comparing it with IGv1.1.5 its better. Also scale your mCPU with SetCPU and when idle underclock it normally its 800mhz on avg load. Don't waste your battery trying to OC it lol just so you can brag about benchmark. Do this 3 you will see improvement, most folks always talk about uptime but we talk about awake time as thats what really matters.
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i dont understand the SetCPU stuff =/

^^^^BUMPP^^^^^

Set cpu is a program you can download that allows you to change the speed your cpu runs at. U can even make profiles so say when ur battery reaches a certain level it will under clock the cpu to run at a lower level to increase your battery life. It also allows you to overclock your phone to run faster but at a significant loss to your battery life.
Hope that helps.
Oh set cpu isn't free now but there are others on the market that do the same thing that are.
Kevin
Sent from my HTC Glacier using XDA App

I have set CPU but I don't understand how to operate it

What most ppl do is set a profile to run at the minimum speed when the phone is turned off to increase batt life..also, use a reasonable on demand setting for all other usage..no need to do crazy overclocking if you dont need the power
Sent from my HTC Glacier using XDA App

Clock speed

I'm running the cm 7 build 32. I was wondering how would I clock my cpu for better battery life?
Sent from my HTC Glacier using Tapatalk

What's the best cpu controller?
Sent from my HTC Glacier using Tapatalk

Hijacking your own thread? Heh.
CM7 comes with its own CPU adjustment capability. No 3rd party app is required. From a Home screen, press the options button, select Settings>>CyanogenMod settings>>Performance. READ the warning in the pop-up window. Press OK. Select CPU settings. Set your min and max, etc. Complain publicly when your level of overclocking produces heat, battery consumption, and software failures. Do the same when your level of underclocking produces unwanted behavior.
Lather, rinse, repeat.
There are 3rd party applications that can also adjust CPU clock speed, and adjust depending on usage / battery consumption. The most popular is SetCPU. Another is CPU Tuner.
There is also another Android kernel that some users are using with CM7, which has yet again some rules for modifying performance as states change. It's called the "smartass" kernel.

I personally recommend leaving the clocks alone, especially in the cm kernels. Zinx has stated numerous times that he hasn't modified any of the voltages, so overclocking isn't the best idea. Also, underclocking can cause more battery drain than just leaving it as is.
These phones are fast as is, no need to go crazy and start messing with them other than to show off your quadrant scores.

Well I'm looking to set for better battery cause I do a lot on my phones. I already killed the cm7 in one day without charging. I just wanna make it where it last the day
option94 said:
I personally recommend leaving the clocks alone, especially in the cm kernels. Zinx has stated numerous times that he hasn't modified any of the voltages, so overclocking isn't the best idea. Also, underclocking can cause more battery drain than just leaving it as is.
These phones are fast as is, no need to go crazy and start messing with them other than to show off your quadrant scores.
Click to expand...
Click to collapse
Sent from my HTC Glacier using Tapatalk

SetCPU vs. CMSettings Built-in CPU manager

For those of you on CM7 (preferably RC2 or later nightlies), are you using SetCPU or the built in CMSettings CPU manager? Which is giving you better performance/battery life?
I can't help but think that the built in CM Settings CPU tuner is going to be conflicting with my SetCPU profiles.
Been using nightlies since #30 or so, and I currently run SetCPU with a normal profile, a screen off profile, and a profile for <10% battery and haven't touched CMSettings' CPU manager.
I'm contemplating just uninstalling SetCPU for a day or two and seeing what a 1017max / 245min Ondemand or Powersave governor via CMSettings ends up doing to my battery life considering there will be no screen off profile.
Any thoughts?

I dumped setCPU after a lot of testing (and even bought it on market)
I'm finding I'm much happier using inbuilt CPU settings. I think battery life is the same but performance is better due to the fact that SetCPU would sometimes get stuck in my screen-off profile when turned on causing the phone to be really slow.
I recomend uninstalling setCPU, set your ONDEMAND governor with ~1Ghz and run it... You'll find your battery about the same but much less hassle.

I have yet to try that, I somewhat feel obligated to use SetCPU since I purchased it lol. But it probably won't be the last time I waste money at the market.

Neither. CPU tuner works best for me.
Sent from my HTC Vision using XDA Premium App

Utorrent76 said:
Neither. CPU tuner works best for me.
Sent from my HTC Vision using XDA Premium App
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Click to collapse
its the same thing :facepalm:
Try the inbuilt one... I think its way easier

I've been wondering about this too. I don't quite understand how it works. Can I just set the frequency higher till a certain point without changing the voltage and get the same battery life?
What's the best way of doing this? Just change the clock speed or do I need to change something else or update the kernel?

Whatever you tell SetCPU to do, you'll see the same settings mirrored in the CM settings.

I say setCPU cuz as battery gets lower... I have my CPU speed lower also. Basically, 15% battery lasts me forever :] lol
Sent from my T-Mobile G2

DJAeroX26 said:
I say setCPU cuz as battery gets lower... I have my CPU speed lower also. Basically, 15% battery lasts me forever :] lol
Sent from my T-Mobile G2
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Click to collapse
Definitely. This is the one thing I like about SetCPU is having the 10% and 5% profiles so that I can get the last few % to last forever if I need it. Although in normal day-to-day use I'm never pushing it below 20%.

ScooterG said:
Whatever you tell SetCPU to do, you'll see the same settings mirrored in the CM settings.
Click to expand...
Click to collapse
Yea I see this, as far as the governor changing etc.. This is why I'm wondering if it would be easier on my phone to just run only the CM Settings one.
I notice that every 5th or so time I unlock the phone, there is an obvious lag switching from the screen off profile, and my unlock sliders jitter around and it takes 4-5 tries to unlock the phone. I think this is probably partially due to both settings switching over trying to change.
I think I might try backing up and uninstalling SetCPU for tomorrow to see how it goes.

colonelcack said:
I've been wondering about this too. I don't quite understand how it works. Can I just set the frequency higher till a certain point without changing the voltage and get the same battery life?
What's the best way of doing this? Just change the clock speed or do I need to change something else or update the kernel?
Click to expand...
Click to collapse
I've read on here that overclocking the Vision's CPU up to 1 GHz requires no over-volting, and in theory should not affect battery life (but not sure exactly where that information originates from). But there has been lots of debate on these forums on whether the SetCPU app helps or hurts battery life depending on screen-off profiles (underclocking to save battery) or its constant polling of the CPU clock (possibly killing the battery faster).
A kernel that supports overclocking is already part of the CM ROM. If you are on CM, you can just adjust the clock speed under Settings>CM Settings>Performance>CPU settings. Or set the CPU clock using an app like SetCPU. Choosing one method over the other is what is being asked/debated here. If you are on the stock ROM, you need to be rooted, flash a custom kernel that supports overclocking, then install an app such as SetCPU or CPU Tuner to set the CPU clock to your liking.

redpoint73 said:
I've read on here that overclocking the Vision's CPU up to 1 GHz requires no over-volting, and in theory should not affect battery life (but not sure exactly where that information originates from). But there has been lots of debate on these forums on whether the SetCPU app helps or hurts battery life depending on screen-off profiles (underclocking to save battery) or its constant polling of the CPU clock (possibly killing the battery faster).
A kernel that supports overclocking is already part of the CM ROM. If you are on CM, you can just adjust the clock speed under Settings>CM Settings>Performance>CPU settings. Or set the CPU clock using an app like SetCPU. Choosing one method over the other is what is being asked/debated here. If you are on the stock ROM, you need to be rooted, flash a custom kernel that supports overclocking, then install an app such as SetCPU or CPU Tuner to set the CPU clock to your liking.
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Click to collapse
I'm not sure about CM's kernel with the over-volting but I do know that Pershoots kernel can be overclocked to 979mhz without over-volting (Pershoot told me himself).

At 1.8Ghz, I find the temp settings in SetCPU very useful.
Vision rooted, booted and scooted

Daughain said:
At 1.8Ghz, I find the temp settings in SetCPU very useful.
Vision rooted, booted and scooted
Click to expand...
Click to collapse
Well obviously.... But why the hell would you ever need to be running at 1.8ghz? The fact that you are always using a temp-specific profile method should show you that consistent 1.8ghz isn't good for the phone...

Okay so I uninstalled SetCPU last night and I'm going to run just the CM Settings CPU manager all day to see how it goes. Running like this:
ONDEMAND governor
Min CPU: 245 mhz
Max CPU: 1017 mhz
On nightly #19 also.
Okay so its midnight almost, and I'm at 13hrs unplugged and 52% battery still. Pretty general/light use, phone is just as snappy and the lack of a screen off profile doesn't seem to effect battery at all. Liking it so far! very interesting to see the screen off profile not mattering much.

SetCPU for me. I like to have a temperature and charging profile, to prevent the phone from overheating. Even at 1ghz the possibility exists, nice to have a backup incase.

I'm thinking set cpu conflicting with the cm built in caused my ****ty running problems. I have not used setcpu since and been good so far
Sent from prison

tackleberry said:
I'm thinking set cpu conflicting with the cm built in caused my ****ty running problems. I have not used setcpu since and been good so far
Sent from prison
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Click to collapse
With multiple tries... If you change the settings on one, it cancels the settings on the other... Maybe it's because you had set on boot enabled on both?

im going to run the CM tuner and uninstall Setcpu and see how it runs. i never thought about this but i do get that lag when i turn my screen on sometimes. im gonna miss having the profiles but ill see how it runs over the coarse of a couple days.

SetCPU app and it's effectiveness? Syndicate Frozen ROM

Hey there, I just a few days ago rooted and flashed the Syndicate Frozen rom and am not getting such good battery life...
I was wondering how big of a difference SetCpu makes on battery life/performance in general? With moderate/heavy use (internet browsing, facebook, email, txt messaging) how much should it improve battery life? am getting around 10hours at the moment with moderately light use... Is there any free alternative app that runs comparatively well?
I guess what I'm really asking is: is it worth it to buy setcpu, and will it make a dramatic difference on my battery life? This Rom is supposed to improve battery life, and I think I read is overclocked to 1.2... Will setcpu let me set this underclocked to 1,0 and then like 800 with screen off, 600 idle? Am new to the android thing [have had my EPIC only around 2 weeks today]
Thanks for any help!

Overclock widget does pretty much the same thing, and you're going to want to set something like
20mhz min 1 or 1.2ghz max
Then 100mhz min 400mhz max for screen off.

You can set the speed to.anything you want. If you want battery to be the best then.set it to 100/1000 on demand. If you emwant performance then 100/1200. Also I don't set profiles cause I was reading somewhere that they aren't good to use on any galaxy phone.
Sent From My Evo Killer!

http://www.setcpu.com/
Nice info read up on it and yes you can set it anyway you want like stated above. I bought mine from the market to support the dev for the hard work involved in making setcpu, dont know if you know but it is free for xda members just search for setcpu. It is only $2.00 well worth the price so please support the dev if you can.

063_XOBX said:
Overclock widget does pretty much the same thing, and you're going to want to set something like
20mhz min 1 or 1.2ghz max
Then 100mhz min 400mhz max for screen off.
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Click to collapse
20Mhz would freeze the phone. :O
I personally like running it @ 100 Mhz when screen is off and 1Ghz when screen is on.

Overstew said:
20Mhz would freeze the phone. :O.......
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Click to collapse
I am pretty sure XOBX meant 200, cause your right 20 is pretty much crawling...

Yep, I meant 200, the damn autocorrect kept changing mhz to Hz and I must've clicked backspace one too many times.

Thanks, so it would make a big difference in battery life?
Sent from my EPIC 4G FROZEN and Syndicated

androikid said:
Thanks, so it would make a big difference in battery life?
Sent from my EPIC 4G FROZEN and Syndicated
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Click to collapse
Don't expect it to magically give you another 4 hours up time. 1 extra hour would be high hopes.

I use SetCPU with the CPU set to 200/1000 and ondemand, and the battery life has improved GREATLY, well worth the $2 to support the Dev, IMO, even though XDA members get it free.

I've abandoned SetCPU and uninstalled it. Unnecessary consumption of system resources.
Same with any other user-space app/widget to control CPU speed scaling.
In the Bonsai ROM, the exact same capability, sans the profiles which I (and most people) don't use anyway, can be achieved by setting clock range and governor in /etc/init.d/24-cpufreq script. I expect that all the other OC kernels, if not every custom kernel, has a similar way to set CPU clock governor.

I have mine set to 100/1200 on demand, and it works well for the demands I put on it. Way low consumption at idle, but when I need something it instantly responds.
I routinely get 16-18 hours off the charger, and put it back on the charger with sometimes as much as 40% remaining, but as always YMMV. A lot of it has to do with the ROM, but I'd say that CPU scaling has realized a tangible gain for me.

dwallersv said:
I've abandoned SetCPU and uninstalled it. Unnecessary consumption of system resources.
Same with any other user-space app/widget to control CPU speed scaling.
In the Bonsai ROM, the exact same capability, sans the profiles which I (and most people) don't use anyway, can be achieved by setting clock range and governor in /etc/init.d/24-cpufreq script. I expect that all the other OC kernels, if not every custom kernel, has a similar way to set CPU clock governor.
Click to expand...
Click to collapse
Talking about Bonsai ROM tweaks on a Syndicate thread would be like me talking about BMW mods on a Honda forum. Either way, I looked around in the system folders and I can't find the 24-cpu file you're talking about. I upgraded yestereday from the 2.1 SyndicateROM to this, and for the first few hours, the ROM itself was definately quicker...I don't know if that's just because I came from 2.1 to 2.2, not to mention all the other 2.2 tweaks. After a few hours, I completely forgot that I could overclock this to 1.2Ghz. Installing SetCPU and bumping it to 1.2Ghz felt like just another jump. System resource consumption aside, it makes the phone all that much quicker while going between screen, apps list, closing apps, etc.
I could care less about battery life because I've learned to always have a charger around me since my days of the Moment, of hell, even my Treo's. I want fast, SetCPU is something I can see the difference in just from turning it on and off and seeing the differences.

[Q] S4 i9505 "underclock" CPU, possible?

Battery life on this phone is abysmal - on a fresh phone. Didn't restore much from titanium backup.
Would like to drop the CPU down a good 25% or so, can this be done without too much stress? It's an unbranded, rooted i9505 in Australia.
I suspect I'll need to flash something to do so, is that right?

wizzbang3 said:
Battery life on this phone is abysmal - on a fresh phone. Didn't restore much from titanium backup.
Would like to drop the CPU down a good 25% or so, can this be done without too much stress? It's an unbranded, rooted i9505 in Australia.
I suspect I'll need to flash something to do so, is that right?
Click to expand...
Click to collapse
Mines telstra stock rooted using faux kernel and my battery life is superb
Sent from my GT-I9505 using xda premium

It must be asked in Q/A Subforum buddy.

Ausboy 2011 said:
Mines telstra stock rooted using faux kernel and my battery life is superb
Sent from my GT-I9505 using xda premium
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Click to collapse
Define "superb" for me.

Apologies for jumping in here. Can you define abysmal too? I would say my battery life is more than double my S2 (that was Cyanogen niggtlies but this is currently djembey's slim). Biggest drain is usually the 3G but I have that off most of the time. It is hard to compare to be fair as we will all use different settings but I have a lot of the bloat removed or disabled, power save on and screen at half brightness. How is yours setup as maybe we can shyc settings a little to compare more closely.

Ausboy 2011 said:
Mines telstra stock rooted using faux kernel and my battery life is superb
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
If the reason to underclock is to save more juice, you should understand that the phone doesn't work on 1,9ghz most of the time, on average it's 200-800mhz depending on task, so you would not probably win a lot battery if you underclock let's say to 1.7 unless you're a heavy gamer.
Sent from my GT-I9300 using xda premium

beeboss said:
If the reason to underclock is to save more juice, you should understand that the phone doesn't work on 1,9ghz most of the time, on average it's 200-800mhz depending on task, so you would not probably win a lot battery if you underclock let's say to 1.7 unless you're a heavy gamer.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
I know this tread is already pretty old, but that answer is only partially true.
On stock configuration the GS4 uses the 'ondemand' cpu gouvernor. That gouvernor ramps up the cpu speed to the max when cpu activity is detected and will then slow down the cpu depending on the task. So everytime you open/close an app the cpu is running at 1.9ghz. (At least that I heard/experienced) using a custom kernel you can choose a different gouvernor which is more battery friendly, or lower the max cpu speed(from 1.9 To for example 1.7ghz). You can also lower the min cpu speed so that when the device is idle, it will consume less power (I think standard is around 350mhz and I put mine on 189). Some kernels even allow to underclock the GPU. Undervolting will also save battery.
In short: using a custom kernel you can really save some battery, increase performance, or get a better balance between the two, but you will have to take the time to find the settings that work best for you. I personally use KT kernel, with an overclocked CPU and GPU, but I also undervolted them both by 75mV, and with some tweaking with settings for when the screen is turned off, my battery lasts longer than stock configuration.
Correct me if I'm wrong on something, I'm not a Cpu expert
And sorry for bad english

wizzbang3 said:
Battery life on this phone is abysmal - on a fresh phone. Didn't restore much from titanium backup.
Would like to drop the CPU down a good 25% or so, can this be done without too much stress? It's an unbranded, rooted i9505 in Australia.
I suspect I'll need to flash something to do so, is that right?
Click to expand...
Click to collapse
Check this out, if you long press the power saving icon in the notification pull down, it will bring the settings for it, Uncheck all but the cpu. It will run no higher than about 1.3 ghz and is plenty fast for all tasks. I use that setting on the s4 and note 3. I never ran into any lag except TouchWhiz home launcher but I use Nova Launcher anyways.
You will see a better battery life as well.