Decrease min CPU frequency???? SGS3 LTE - Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help &

Guys,
I'am wondering if its possible to set min CPU to lower than 200Mhz????
I used to have a HTC Incredible S and lowering the min CPU to 133Mhz it helped with battery saving.
Using S3 LTE AMCHA v5.00

raulpcamara said:
Guys,
I'am wondering if its possible to set min CPU to lower than 200Mhz????
I used to have a HTC Incredible S and lowering the min CPU to 133Mhz it helped with battery saving.
Using S3 LTE AMCHA v5.00
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Click to collapse
Sorry no...

Smedslund said:
Sorry no...
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Click to collapse
I was afraid it was a hardware limitation.
Thanks anyway !!!
:good:

that 200 MHz or whatever value, is the sleep frequency right?

raulpcamara said:
Guys,
I'am wondering if its possible to set min CPU to lower than 200Mhz????
I used to have a HTC Incredible S and lowering the min CPU to 133Mhz it helped with battery saving.
Using S3 LTE AMCHA v5.00
Click to expand...
Click to collapse
Hi mate,
Have you tried playing with the CPU frequency settings located in:
/sys/devices/system/cpu/cpufreq/pegasusq/
You will need Root Access and to mount the System as read/write in order to save the changes.
They are also referenced in /init.rc, so you can probably change the settings in the Kernel too
Have a great day!
-Shaz

if this trick works you can set it to 1MHz....But the big question: will the phone work normally? i mean if i get a call phone will act as normal?

spiderman07 said:
that 200 MHz or whatever value, is the sleep frequency right?
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No, in deep sleep the frequency is different. That's why a idling device wastes more battery than a deep sleep one.

Related

[Q] Overclocking help :)

Hey guys i am currently using CM7 kittenlinux base (in fact autoradios cm7 light ics modded)
I just want to know which is a safe overclocking frequency for the mini. I plan to use 710hz but u guys tell me =)
Thank you.
Each phone have not same. ...not every phone stable in the same MHz like i am not stable in800MHz...but someone is stable..so try it by urself...and dont overclock too much...waste battery
Sent from my GT-S5570 using XDA
i always use 729-748 as max cpu frequency and the lowest frequency as min cpu frequency... as governor i use ondemand or lilgV2... for me works fine but you should find your own configuration because it depends from the use you mean to do with your device... for example if you use you phon for gaming so you need high freqency for lagless gaming experience but a governor and a shleuder that make long battery life... try by yourself xD
For maximum freq 710, for minimum freq 245 (less chance of hanging when waking device) and governor smartassv2. That's how I roll
AndroidUser99 said:
Each phone have not same. ...not every phone stable in the same MHz like i am not stable in800MHz...but someone is stable..so try it by urself...and dont overclock too much...waste battery
Sent from my GT-S5570 using XDA
Click to expand...
Click to collapse
Thnx everyone but how do i know that a particular frequency is stable on my phone ??
kirakun said:
Thnx everyone but how do i know that a particular frequency is stable on my phone ??
Click to expand...
Click to collapse
By putting phone in horizontal position, display facing south-west, and perfectly balanced lol but really, you'll notice how it performs, any fc's or hangs or random reboots are bad signs

The right freq for a mini plus device

Hello people. Today I changed my freq from my galaxy mini plus device.
ORIGINAL:
832MHz---1360
624MHz---1320
468MHz---1280
312MHz---1240
AFTER I MODIFY THEY ARE:
832MHz---1280
624MHz---1260
468MHz---1240
312MHz---1200
Are they correct? I mean, did I set them whell? If not, what will be the best lowest freq that I can set on that device?
bogdan99999 said:
Hello people. Today I changed my freq from my galaxy mini plus device.
ORIGINAL:
832MHz---1360
624MHz---1320
468MHz---1280
312MHz---1240
AFTER I MODIFY THEY ARE:
832MHz---1280
624MHz---1260
468MHz---1240
312MHz---1200
Are they correct? I mean, did I set them whell? If not, what will be the best lowest freq that I can set on that device?
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Click to collapse
So...what do you mean? What is 1280 and 1260??
Sent from my GT-S5570 using xda app-developers app
have you changed the voltage?
Those are the new freq. that I set. Are they ok? Are they to low? Can I set them lower than that?
Sorry for double post.
I want to add the following question:
"What tweaks or what can I change to my phone in order to obtain better overall quality?
this is not the frequency this is voltage provided to the processor on that particular speed
if your mobile is not rebooting then the settings are very good
dheeraj (dhlalit11) said:
this is not the frequency this is voltage provided to the processor on that particular speed
if your mobile is not rebooting then the settings are very good
Click to expand...
Click to collapse
Yes, my bad. I want to say voltages not freq. I know that if my phone is not rebooting is good, but can I go lower?
different mobile, different model, different usage
you must experiment it yourself with different voltages

[Q] Cpu Frequency

Hello .. I'm Asking About The Maximal Cpu Frequency That I can Set On My Galaxy Mini To Be Faster And Smooth
Without having breaking it ??
& Thx !! :good:
Oh God .. Nobody Wanna Reply ...
poursystem said:
Oh God .. Nobody Wanna Reply ...
Click to expand...
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On stock it's set to 600MHz. 748MHz works for me without any hiccups.
200min and 780max
Governor : smartassv2
Sent from my GT-S5570 using xda app-developers app
i set my cpu to 806mhz for playing games but always lower it to 480mhz for normal use
max should not be more than 800 and min could be 100
dheeraj (dhlalit11) said:
max should not be more than 800 and min could be 100
Click to expand...
Click to collapse
Your phone would lag on such a low freq. After waking it up from sleep...... max: not more than 748mhz.... min: 320mhz.... governor: smartassv2/ondemand... i/o scheduler: sio/deadline.... respectively.
Sent from my GT-S5570 using xda premium
ashu.bigsmoke said:
Your phone would lag on such a low freq. After waking it up from sleep...... max: not more than 748mhz.... min: 320mhz.... governor: smartassv2/ondemand... i/o scheduler: sio/deadline.... respectively.
Sent from my GT-S5570 using xda premium
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and at min as 320mhz the battery would be sucked like hell even when the screen would be off
even my galaxy s with bigger screen don't lag with 100mhz clock speed
if the lag would be there it would be very small as till the lock screen is passed the processor would be at required speed
and setting it depends on person thats why i wrote "could be"
ashu.bigsmoke said:
Your phone would lag on such a low freq. After waking it up from sleep...... max: not more than 748mhz.... min: 320mhz.... governor: smartassv2/ondemand... i/o scheduler: sio/deadline.... respectively.
Sent from my GT-S5570 using xda premium
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Click to collapse
dheeraj (dhlalit11) said:
and at min as 320mhz the battery would be sucked like hell even when the screen would be off
even my galaxy s with bigger screen don't lag with 100mhz clock speed
if the lag would be there it would be very small as till the lock screen is passed the processor would be at required speed
and setting it depends on person thats why i wrote "could be"
Click to expand...
Click to collapse
So, I think it's better to set min on 200mhz.
dheeraj (dhlalit11) said:
and at min as 320mhz the battery would be sucked like hell even when the screen would be off
even my galaxy s with bigger screen don't lag with 100mhz clock speed
if the lag would be there it would be very small as till the lock screen is passed the processor would be at required speed
and setting it depends on person thats why i wrote "could be"
Click to expand...
Click to collapse
It would not drain the battery because when you put screen off the device goes to deep sleep mode.... and saves a lot juice..... and even on galaxy y and latest entry level phones of samsung the default clocking is min: 315mhz and max: 832mhz, that also on 1200mah battery....
Sent from my GT-S5570 using xda premium
If you can adjust the screen off frequency set it to 125MHz.
Set the max screen-on frequency to 758MHz. Min to 300Mhz
Note: The higher the frequency you set, the faster your battery drains out.
try an app call "system tuner pro" with it you can ajust the CPU frequently when the screen is in deep sleep... also does a lot more... try it
ashu.bigsmoke said:
It would not drain the battery because when you put screen off the device goes to deep sleep mode.... and saves a lot juice..... and even on galaxy y and latest entry level phones of samsung the default clocking is min: 315mhz and max: 832mhz, that also on 1200mah battery....
Sent from my GT-S5570 using xda premium
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Click to collapse
i dont think samsung give deep sleep functionality in stock kernel
and if deep sleep is there that means way too much lag while waking up device
Samsung is not giving 315mhz as min speed in any of its kernel, 315mhz is way too much for min
dheeraj (dhlalit11) said:
i dont think samsung give deep sleep functionality in stock kernel
and if deep sleep is there that means way too much lag while waking up device
Samsung is not giving 315mhz as min speed in any of its kernel, 315mhz is way too much for min
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It has deep sleep.... every phone has it man.... .... I have a galaxy Y so I know which freq. is min. Its 315mhz.... If there would be no deep sleep... your phone would no last even half a day... Search and think before you post...
Sent from Galaxy mini running CM10(Android 4.1.2 (Jellybean)).
Thx All :good:

[Q] Min CPU freq setting for low battery consumption?

Hi!
I've found this thread which explains in detail all Governor/Schedulers characteristics and much more.
Even if the thread is SGS2 based, there is one thing that catched my attention.
It is written that setting the min CPU frequency @ 100 Mhz actually takes more power during phone standby then the 200 Mhz setting because of cpu voltages...
Does anybody has similare experiences with the Galaxy S i9000?
Which is the recommendable min CPU freq for the lowest battery consumption during Standby?
Thank you!
it depend on devices n true voltage lacking when cpu standby, but its dualcore vs single core
Sent from my GT-I9000 using xda premium
An this mean what for device i9000 ???
compacity said:
it depend on devices n true voltage lacking when cpu standby, but its dualcore vs single core
Sent from my GT-I9000 using xda premium
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Nope, doesnt mean anything mate, juz info, actually u need to test it urself. as for me, locking min cpu doesnt solve battery drain in smartphone.
Sent from my GT-I9000 using xda premium
Okay sorry for my stupid question ...
i have min cpu by 100mhz ...and for me it is okay...
Sure and if you have apps which let the cpu not going to standby , it doesn`t take effect ...
What min cpu do yu have? Only for information ...
compacity said:
Nope, doesnt mean anything mate, juz info, actually u need to test it urself. as for me, locking min cpu doesnt solve battery drain in smartphone.
Sent from my GT-I9000 using xda premium
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freakymod2120 said:
Okay sorry for my stupid question ...
i have min cpu by 100mhz ...and for me it is okay...
Sure and if you have apps which let the cpu not going to standby , it doesn`t take effect ...
What min cpu do yu have? Only for information ...
Click to expand...
Click to collapse
mine dont lock mincpu, as i let da gov do it, mincpu goes to any value cpu needed.but literally 100 was default. but i use script tweak on init.d to shut all background app/lagfree/sdread ahead/ n auto taskmanager to manage free RAM. So feel free to use any combo u feel battery saving as i m waiting tony stark to create a nuclearbased battery for smartfone
n no kidding mate, discussion on saving battery already been solved as not recommended topic, so try to find any setting that pleases u.
or maybe u can try slimbase ROM
Sent from my GT-I9000 using xda premium
200MHz is the best minimum CPU frequency for both performance and battery consumption for most cases. Leave your minimum at 200MHz.
What govenor do you use???
Kingo64 said:
200MHz is the best minimum CPU frequency for both performance and battery consumption for most cases. Leave your minimum at 200MHz.
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freakymod2120 said:
What govenor do you use???
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Click to collapse
Ondemand. I also use SIO as a scheduler but cannot really feel any difference between it and other IO schedulers.
whats the difference between ondemand and interactive ...???
it is a little bit off-topic but what are the differences between the differnt I/O-Scheduler ...(actually i`m using row ...)
Thx
Kingo64 said:
Ondemand. I also use SIO as a scheduler but cannot really feel any difference between it and other IO schedulers.
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Click to collapse
freakymod2120 said:
whats the difference between ondemand and interactive ...???
it is a little bit off-topic but what are the differences between the differnt I/O-Scheduler ...(actually i`m using row ...)
Thx
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Click to collapse
Sorry, i didn't want to press thanks ;PP
Let google be your friend. You will get great overviews. (There is as example a overview for governors - i thonk it was for SGS2 - but it is partly right on every phone)
i'm sorry i didnt remember the URL ;DD

[INFO] Android One Overclocking

Hi guys !
I've been trying to add overclocking to Android One, I'm able to add another frequency (both Overclock and Underclock) but I'm able to test it, the 1391 MHz was the stablest overclock frequency I could get. Decreasing frequency lower than 590 MHz makes booting slower (I don't know why).
Check the screenshot, I'll report more news once I get things finished.
I have attached the mt_cpufreq.c just in case anyone have a kernel source and want to try the overclock.
EDIT: It seems max frequency can't be changed since it's hardcoded to 1.3 GHz, it keeps jumping to 1.3 GHz when screen is turned off, but the frequency sticks when phone is rebooted, but not on screen off.
Click to expand...
Click to collapse
EDIT2: It seems that mt_ptp also controls DVFS, which is interesting. This means we have to edit two files and disable restoring frequency to its default table.
Click to expand...
Click to collapse
EDIT3: I found this in mt_cpufreq.c :
Code:
static unsigned int g_max_freq_by_ptp = DVFS_F0;
Which is defined in the same file, the DVFS_F0 is :
Code:
#define DVFS_F0 (1300000) // KHz
The DVFS_F0 is 1.3 GHz, this might explain why the max frequency keeps jumping to 1.3 GHz when screen off. But this is just an assumption.
I've added mt_ptp.c just in case anyone want to checkout and help the development.
Click to expand...
Click to collapse
Interesting
I had given up all hopes of low level modifications such as over clocking /underclocking/under volting and kernel level wake gestures like double tap to wake etc... This gives me something to look at. Thank you
It seems that max freq can't be set to other than 1300 MHz / 1.3 GHz.
Can anyone here using CM12.1 confirm this bug ? Since it might be because of the ROM but I'm unsure here, it can be either ROM or my custom built kernel.
BTW, 470 MHz isn't fully implemented, the kernel refuses to use it. It might be because I haven't defined it in the volt switch function.
EDIT: Another possibility, it seems on mt_ptp, the clock are either hardcoded or defined in other file. So I have to say that overclocking might be still far away to be achieved.
Why not Overcloack the GPU ??? (NOOB HERE)
Saurabh K said:
Why not Overcloack the GPU ??? (NOOB HERE)
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Click to collapse
GPU is another thing here, it's still too hard to OC CPU itself.
Does the Android One uses MT6582 or MT6582M?(Are there more differences between them other than GPU frequency? MT6582: [email protected]; MT6582M: [email protected])
hstinscdln said:
Does the Android One uses MT6582 or MT6582M?(Are there more differences between them other than GPU frequency? MT6582: [email protected]; MT6582M: [email protected])
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Click to collapse
MT6582 I believe. I never checked but on kernel the chip folder (/arch/arm/mach-) is mt-6582
Can it be used on a 5" screen and MT6582M?
Sent from my Lenovo A536 using XDA Free mobile app
hstinscdln said:
Can it be used on a 5" screen and MT6582M?
Sent from my Lenovo A536 using XDA Free mobile app
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Click to collapse
Depends, does your phone kernel source exist ? If yes, then you're free to try. If not, then don't.
BTW, please don't think this is just a 'install the .c file and get overclock'. It needs many work, and such, I advise you to have at least some advanced knowledge of Linux Kernel.
F4uzan said:
It seems that max freq can't be set to other than 1300 MHz / 1.3 GHz.
Can anyone here using CM12.1 confirm this bug ? Since it might be because of the ROM but I'm unsure here, it can be either ROM or my custom built kernel.
BTW, 470 MHz isn't fully implemented, the kernel refuses to use it. It might be because I haven't defined it in the volt switch function.
EDIT: Another possibility, it seems on mt_ptp, the clock are either hardcoded or defined in other file. So I have to say that overclocking might be still far away to be achieved.
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i had overclocked sprout in almost every possible sorts i can do. you have not defined 470mhz freq table properly in the file , pm me if you want to know my experience. :good:
Wow, overclocks must drain battery though .........
Saurabh K said:
Wow, overclocks must drain battery though .........
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Not really, but yeah, it kinda drain battery more than normal 1.3 GHz frequency.
F4uzan said:
Not really, but yeah, it kinda drain battery more than normal 1.3 GHz frequency.
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How about the you underclock in order to save battery as 1.3 quad core is not that necessary for mild usage.
Saurabh K said:
How about the you underclock in order to save battery as 1.3 quad core is not that necessary for mild usage.
Click to expand...
Click to collapse
200mhz is the lowest underclock i get in my experiments ,i tried 156 mhz but it didn't boots up ?
roshan77ss said:
View attachment 3269028
200mhz is the lowest underclock i get in my experiments ,i tried 156 mhz but it didn't boots up
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does the device run smoothly on such low clocks ???
Saurabh K said:
does the device run smoothly on such low clocks ???
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low clock means less processing power so it lags if i set both minimum and max frequency to 200mhz else it is fine[emoji23]
roshan77ss said:
low clock means less processing power so it lags if i set both minimum and max frequency to 200mhz else it is fine[emoji23]
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OK, so the device will run smoothly on ~550 MHz without loosing too much on performance and save battery also, ?
Saurabh K said:
OK, so the device will run smoothly on ~550 MHz without loosing too much on performance and save battery also, ?
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yup 550mhz doesn't affect performance that much
roshan77ss said:
yup 550mhz doesn't affect performance that much
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So, tell me a safe way in which I can underclock my Sparkle V (Stock 5.1)...
Using trickster mod??

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