Database Develop

SetCPU usage/benefits?

I was thinking about installing SetCPU but I have heard stories of it not working very well on the Captivate. Does anyone use this, and if so what kind of battery life improvement are you seeing? Post config settings too please!

Its working just fine. I have a live background so my battery usage isnt very great so long as the screen is on. I had some trouble with the system being slow to respond every time I turned the screen back on when I had "screen off" profile set to max 200 and min 100. then it dawned on me that it would always just underclock to 100 I set it to max 200 and min 200 when the screen is off and also started using launcher pro and it is no longer sluggish at all.
This has saved me a gratuitous amount of battery life when the phone is idle.
Default profile
Max 1Ghz
Min 800Mhz
scaling Conservative
Charging/full profile
Same as default but scales on performance
Battery <50%
Max 800Mhz
Min 400Mhz
scaling Ondemand
screen off
Max 200
Min 200
Scale powersave

kenjindomini said:
Its working just fine. I have a live background so my battery usage isnt very great so long as the screen is on. I had some trouble with the system being slow to respond every time I turned the screen back on when I had "screen off" profile set to max 200 and min 100. then it dawned on me that it would always just underclock to 100 I set it to max 200 and min 200 when the screen is off and also started using launcher pro and it is no longer sluggish at all.
This has saved me a gratuitous amount of battery life when the phone is idle.
Default profile
Max 1Ghz
Min 800Mhz
scaling Conservative
Charging/full profile
Same as default but scales on performance
Battery <50%
Max 800Mhz
Min 400Mhz
scaling Ondemand
screen off
Max 200
Min 200
Scale powersave
Click to expand...
Click to collapse
Thanks for these, I was looking for a some decent settings. Mine were close to that to start, but I had no idea what I was doing, haha

I had some stability problems with it that I am now fairly certain are related to adjusting the polling frequency in advanced settings. After disabling setting advanced settings on boot, and a reboot, it has not caused the phone to hang once. I am also fairly sure that the phone boots with the conservative governor enabled and min/max frequencies set to 100MHz and 1GHz, even without SetCPU - so the main benefit here is profiles to force lower clocks with screen off, or during overheat or low battery.

CPU throttles itself. Any effects of setCPU is placebo effect

Err if you set the clocks yourself, you can produce a difference depending on what it's catered towards. I'm sure if I set the max clock to 200 (assuming the app works) for all situations there will be a difference.

Does the stock ROM have a perflock like the EVO that we need to disable?
Also, does the stock ROM automatically underclock at times, or???

I've now verified after clearing user data, the stock firmware already sets the conservative governor and allows it the full range of frequencies supported by the CPU. Only benefit from SetCPU should be profiles - reduce max clock when hot or low battery, that sort of thing.
Sent from my Samsung Captivate

I was going to make a screen off profile of 200mhz, to save battery. Should I bother doing this?
Edit: Nevermind, I'm just going to uninstall it. It's locked up my phone twice already

Default Profile: 800 MHz
Profiles:
Temp > 46 C -- 400 Max 100 Min Conservative
Battery < 40 -- 400 Max 100 Min Conservative
Screen Off -- 400 Max 100 Min Conservative
This now gives my phone life of about 2 days with moderate use (1 hour calls, 1 hour browsing and another 30-45 mins of using apps that need screen on like games, etc)

brandonb81 said:
I was going to make a screen off profile of 200mhz, to save battery. Should I bother doing this?
Edit: Nevermind, I'm just going to uninstall it. It's locked up my phone twice already
Click to expand...
Click to collapse
One thing u got to keep in mind, CPU scales up when woken from low speeds (like when u set for 200 n this takes a second or two). After some R&D i realized 400 MHz when sleeping is optimal with hardly noticeable lag.

Unhelpful said:
I had some stability problems with it that I am now fairly certain are related to adjusting the polling frequency in advanced settings. After disabling setting advanced settings on boot, and a reboot, it has not caused the phone to hang once. I am also fairly sure that the phone boots with the conservative governor enabled and min/max frequencies set to 100MHz and 1GHz, even without SetCPU - so the main benefit here is profiles to force lower clocks with screen off, or during overheat or low battery.
Click to expand...
Click to collapse
well, i have tried playing heavy games like asphalt 5, dungeon hunter, assasin's creed... these all games seemed to work with no lag even at 400 MHz when my battery was less than 40. Most apps I have or used or saw were very comfortable even at 400 MHz. But with multiple apps open, sometimes there was lag, so i set the max at 800 MHz, instead of 1 GHz.
Also, I set my connection to EDGE from 3G. This helped reduce phone from getting heated up with long calls.

I tried using this app myself but uninstalled it after a week. While I'm sure there was some underlying cause, it made my phone never wake up from sleep mode when it turned off.
Honestly thou, I know several android phone owners with s lot of phones That didn't see any real change in their battery life as s result. And based on my experiences, I'd say stay away from it.
Just my 2 cents thou
Sent from my SAMSUNG-SGH-I897 using XDA App

[Q] dynamic overclocking

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I use setcpu to do this.
Look into the governors, choose one.
Then choose the appropriate thresholds (in the advanced menu) for what you do.
It doesn't allow you to tweak per app, but tells the cpu governor at what %of cpu to move to the next cpu speed (up or down).
I set mine very low, as i care more about battery than performance. So my up threshold is like 95% or something.
But my down threshold is a lot more agressive.
But you do the opposite.
MuF123 said:
Hello,
my question is regarding dynamic overclocking. I've used the ones that raise the speed when under a load - but my question is -
Is there a way to return to stock clocks after certain time?
Explanation:
situation1: I want to check new single mail or open new single IM or check university's website for some news, I want the device to be FAST as possible, nevermind the battery.
situation2: I want to use maps/navigation/IM/games/web browsing for longer period of time (hours?) with the screen on. I don't need all the power when I play solitaire, text on IM or browse not-so-important news websites.
I think when I've seen the realtime clock displayed on my phone it jumped to max clock right after I've clicked almost anything on the screen. I want the speed-up, but after certain period of time to stop doing this in favor of the battery life-time.
Any ideas how to do this? Thanks!
Click to expand...
Click to collapse
Sent from my Milestone using Tapatalk

Yes, just throttle the cpu to give you more power when you are sluggish. That could work for you.
Me? I have my droid do 110 when screen is off (works quite well!), and then I FORCE the unit to 1000 when plugged in. Besides that i throttle the cpu based on battery power: more cpu power with more battery life. Makes my droid last longer.
I might want to add a throttle up when sluggish and not in my personal battery red zone and a throttle down when the cpu gets too hot period.
Any cpu frequencies that you all would suggest?

..

MuF123 said:
Thanks for the reply, but - think about this, I will start a 3D game, it will use 100% of the cpu so it would always stay at the highest possible frequency (+highest voltage). I don't want that.
Click to expand...
Click to collapse
I dont get it?
You dont want max speed in game? Why do you overclock?
If the game requires 100%, the it will (and should) clock up.
As soon as the game doesnt, it will clock down (depends on your threshold).
The only other i could see, is to change the max clock rate in setcpu before you play the game. This will ensure it doesnt clock higher than your choice, but requires a manual step.
But seriously, if your cpu is pegged at 100, why would you not want it to step up the higher speed?
Sent from my Milestone using Tapatalk

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MuF123 said:
exactly - I don't want minimum battery in game, that's why I don't want to overclock.
actually from the nature of 3d rendering I think every game will run at 100%, but the situation when the game hits the frame limiter (not likely on milestone).
I want snappy performance while doing few quick tasks:
e.g.: new IM comes, I want to unlock, load the application, get to the IM, reply, lock. (40seconds)
or
taking phone from cradle - I want the phone to load homescreen fast, rotate the screen, open phone app, to look at last missed call and call back (20seconds).
Battery life won't be affected by 40 or 20seconds of ~1100mhz, okay.
And then I start a game for a prolonged time. It will run smoothly even on 550MHz, the additional frames I see are just waste of battery = I don't want that.
So now I have two options - either run at max speed and it will be always fast and it will drain my battery when I decide to play for an hour.
OR
I can use default speeds for longer battery life for everything and I will wait an hour to rotate the screen in browser or IM app.
Click to expand...
Click to collapse
You could compromise and find a max speed that you could undervolt to make it drain battery like stock. My 800mhz vsel is less than the default vsel @550. So the battery drain is less...
It requires some trial and error, but most "slight" overclocks (700,800; depends on the phone) can be configured to drain less than stock.
Of course, if you feel you need 1000 or 1100, this wont work as it requires increasing the vsel (or at least not decreasing it).
Sent from my Milestone using Tapatalk

[Q] best setcpu settings for t-mobile G1

hello i am searching for the best setcpu settings for G1 so i will get the hell out of my g1 !! please help and if double post sorry i didn't see the other at related threads

576 max, 528 min
122 122 on sleep

This is the setting that I have been using, the good thing is it has failsafe profile as well to prevent overheating
Profiles are listed according to order (high priority to low)
Main setting 528 max 245 min
Screen off 245 max 122min (245 max to allow background apps to function properly)
temp>38.6 352 man 245 min
Charging 537 max 245 min
Battery<40% 480 max 245 min
u can set your own max speed, but not advised to go beyond 576
245 is set as minimum when awake because that is the original minimum clockspeed of the cpu
remember to check 'set on boot' and 'enable profile' setting
change them to your liking n have fun!
p/s: my setting is based on this http://forum.xda-developers.com/showpost.php?p=6762470&postcount=208

Any figures on how this affects battery life?

mimox said:
Any figures on how this affects battery life?
Click to expand...
Click to collapse
try it out for yourself, set it, and forget about it, and do your normal daily usage, after that you'll notice of the extra juice available

mimox said:
Any figures on how this affects battery life?
Click to expand...
Click to collapse
Keep in mind, the best settings may be none at all.
SetCPU does take a few MB of available RAM - a precious commodity on the G1. I've been going without it using Farmatito's kernels - it defaults to 528 and 245, I think. Only drop about 1% an hour on standby.

sisterchick said:
Keep in mind, the best settings may be none at all.
SetCPU does take a few MB of available RAM - a precious commodity on the G1. I've been going without it using Farmatito's kernels - it defaults to 528 and 245, I think. Only drop about 1% an hour on standby.
Click to expand...
Click to collapse
Good idea! It may be wise to remove the SetCPU to get more available RAM if the battery won't drop fast without SetCPU.

how much does the governerr really effect the battary?

im just wondering how much does the governerr effect battary life? i changed from ondemand to smartass2 and im not sure i see any diffrent...
and im scheduales which one is best for multitasking and which is for when playing games?
and should i change the governerr setting?
i also read that sleep_ideal_frequency should be 200 and not 100 beacuse 100 wastes more or something like that, is that true?
using galaxy i9000 semaphore kernal jb

bump

I use Performance governor all the time for 3 months now, battery life is same as on demand, smartass v2 or any other governor, except my phone lags much rarely than on any other govenor. For those that dont know, CPU of PC, your phone, calculator or anything else always works at 100% of its frequency even it has no work to do (Let's take for example your PC, even cpu usage is 5%, CPU still works at full frequency, the same works for your phone), so to me there is no point of any other governor except for Performance. If you have problem with battery life, it's mostly your screen. When I drain out my battery, my battery mostly get drained by screen (70-90%), I use about 0-30% of brightness always. Screen of 60-100% brightness will probably drain your phone's battery in 2-3 hours.

Lavoslav said:
I use Performance governor all the time for 3 months now, battery life is same as on demand, smartass v2 or any other governor, except my phone lags much rarely than on any other govenor. For those that dont know, CPU of PC, your phone, calculator or anything else always works at 100% of its frequency even it has no work to do (Let's take for example your PC, even cpu usage is 5%, CPU still works at full frequency, the same works for your phone), so to me there is no point of any other governor except for Performance. If you have problem with battery life, it's mostly your screen. When I drain out my battery, my battery mostly get drained by screen (70-90%), I use about 0-30% of brightness always. Screen of 60-100% brightness will probably drain your phone's battery in 2-3 hours.
Click to expand...
Click to collapse
This is so wrong its a pain to read.:banghead: Why do we have the max and min frequency options in the semaphore app? Why do we have "Max Performance" and "Max Battery" power settings on laptops?
Sent from my GT-I9000

There was a thread some while ago that concluded in OnDemand and Performance being to two to give longest battery life and best performance.
I don't have specifics or even a link, but the thread was about schedulers and governors and which went together for best performance and battery life. I'm sure it's google'able
Sent from my GT-I9000 using xda premium

i found that thread but im just wondering how much battary life is wasted if i prefer preformence?
lets say i use smarassv2 since its faster will my phone drain lets say insted 20%\hour - 22%\hour? or is it more then that?

itzikd1 said:
i found that thread but im just wondering how much battary life is wasted if i prefer preformence?
lets say i use smarassv2 since its faster will my phone drain lets say insted 20%\hour - 22%\hour? or is it more then that?
Click to expand...
Click to collapse
maybe you can try and tell us

There should be a significant impact regarding battery life when using Performance for example. But it also depends on what you are used to. If you play games all the time or do heavy tasks, the governor will kick the CPU to 100% all the time anyway. But if you mostly surf on the Internet or read texts there's no need to let the CPU go rampage.
Oh and Btw: Modern CPUs in notebooks or computers in general clock themselves down as well when they're idle.
Sent from my Gameboy Color

BlueFlame4 said:
There should be a significant impact regarding battery life when using Performance for example. But it also depends on what you are used to. If you play games all the time or do heavy tasks, the governor will kick the CPU to 100% all the time anyway. But if you mostly surf on the Internet or read texts there's no need to let the CPU go rampage.
Oh and Btw: Modern CPUs in notebooks or computers in general clock themselves down as well when they're idle.
Sent from my Gameboy Color
Click to expand...
Click to collapse
I do use internet mostly so what will be the most effective governerr any idea?

itzikd1 said:
I do use internet mostly so what will be the most effective governerr any idea?
Click to expand...
Click to collapse
Try OnDemand or SmartAssV2.

Setting the right CPU maximal/minimum frequency for better battery life

I'm totally a rookie for modify the kernel, but i wish to get better battery life for my nexus 6. So i read often that changing the CPU Maximal/Minimum Frequency - for example for the franco.kernel or Lean Kernel or other kernel - almost everybody get a better battery life and no wake locks. At the moment i use the nexus 6 stock with no custom software, but the battery life isn't very good.
My questions now: How can i setting the right CPU Maximal/Minimum Frequency for the franco.kernel or Lean Kernel or other Custom Kernel? Are there specific apps? And the most important question: Which are the right numbers to set for the CPU Frequency?
Thanks. :good:

Erdiou said:
I'm totally a rookie for modify the kernel, but i wish to get better battery life for my nexus 6. So i read often that changing the CPU Maximal/Minimum Frequency - for example for the franco.kernel or Lean Kernel or other kernel - almost everybody get a better battery life and no wake locks. At the moment i use the nexus 6 stock with no custom software, but the battery life isn't very good.
My questions now: How can i setting the right CPU Maximal/Minimum Frequency for the franco.kernel or Lean Kernel or other Custom Kernel? Are there specific apps? And the most important question: Which are the right numbers to set for the CPU Frequency?
Thanks. :good:
Click to expand...
Click to collapse
first off, questions go into the q&a/help threads, not general. and there are many cpu control apps to use, some free, some paid. thats the way for you to setup your cpu anyways you feel like. and there is no such thing as the right numbers, you need to find the right numbets for your use. me, i overclock to 3033mhz, and still see 5.5-6.5 hours of sot.

Thank you!

You shouldn't necessarily change the minimum and maximum frequencies because they won't necessarily save you battery.
When you look at the mex frequency of 2650 MHz, that's how many clock cycles there are per second. 2,650,000.
Every task you do on your phone will complete within an amount of clock cycles. Let's make some things up to illustrate this. Let's pretend that it takes Facebook app 5,000, 000 clock cycles to open. That means it would take nearly 2 seconds. If you set your Mac CPU frequency to half of stock, that app is going to take twice the time to open. The question is, will running running at 1267 MHz for 4 seconds use less energy than 2650 MHz for 2 seconds?
Looking at the voltage table for elementalx, the stock voltages are 890mV and 1110mV so it seems to me that since the voltage for half the max frequency is a lot higher than half the voltage of max frequency, running a task for twice as long would use more energy than max.
Surely, there will be tasks that take significantly fewer cycles than max frequency, so in those instances it may seem a bit more balanced, but its one of those things you're going to have to just try for yourself. Some people seem to get better battery though personally I'm not tempted.

Thank you, too! Now i understand.
Should I flash only the Lean Kernel or franco.Kernel and then look again at the battery life? Is this enough to get a better battery life on my device?

Erdiou said:
Thank you, too! Now i understand.
Should I flash only the Lean Kernel or franco.Kernel and then look again at the battery life? Is this enough to get a better battery life on my device?
Click to expand...
Click to collapse
no. kernels generally wont give you better battery life, but they can help you. battery life is dependent on how you use your device, how you set up your device, what apps you installed and use, your brightness, and the quality of your phone/data connection. and much more other things that weigh in less then these on nattery life.
some apps you install can be badly written, and take lots of battery, even though you rarely use. dropping brightness can increase your battery life. i keep my brightness below 15% usually. if i raise it to 35-40%, ill see a whole hour less screen on time.