Develop Bugs

CPUfrec interactive, powersave, ondemand?

I see that several ROMs now have settings for "CPUfrec interactive, powersave, ondemand".
What do these do?
I am aware of SetCPU that was used to save battery, but how does this fit in with the above?
Do I need to use SetCPU on these ROMS, or is it automatic? Is it better with these new settings? What about Perflock?
An explanation of what all this is about would be useful.
Cheers.

Interactive is the one to toggle if you want performances with acceptable battery time. Ondemand is a little less reactive but saves more battery witout harming performances too much. Use powersave instead if you only care about battery time. That's it (i guess).
Sent from my HTC Desire using XDA App

Cheers, that explains it.

vnvman said:
Use powersave instead if you only care about battery time.
Click to expand...
Click to collapse
Keep in mind that Powersave keeps the phone running at 245 MHz. That is the very reason battery time becomes longer.
For me this is too low - the machine becomes too slow - and I did not buy a 1 GHz phone to only have it running at 245 MHz all the time.
Just play with the settings and see what works best for you.

An example of decent settings by people who know what there doing would be good.
Mine is set at screen off, 245min 245 max powersave.
Main profile is 998 max 245 min, interactive, with set on boot ticked.
Temp selected to 38 degrees, 245/245 powersave.
If battery becomes more or less important, what to change to in terms of govnor but also up threshold on advanced settings.
Thanks

CPU Tuner

Hi there. Wanna check here, can we set the CPU power(minimum) to the lowest? I mean will there be any "side effects"?
Because previously before I update my CPU Tuner to the latest, the minimum CPU i can check them(by Default) is minimum 422MHz. But after updating to the latest, I realised now I can make it lower to 245MHz in this custom ROM of LeeDroid that I am previously and currently using. Same ROM before and after the updates.
Any possible side effects? =)

No side effects I'm running on 245max and powersave governor profile when screen off.
Tapatalked with Tapatalk from my Desire HD using Tapatalk.

Alright. Thanks dude!
Oh yes, those governors seems to changed. No more Smartass etc.
Only Full Speed, Normal, Save Battery and Extreme Save Battery. If for interactive, day to day usage, I suppose we use "Normal" governor? Is Normal similar to that of Smartass?

KISS-Kernel

excuse me; have question about this kernel; i couldn't post in the original thread;
by setting the min clock speed to 768MHZ & the max to 1407MHZ, How much voltage does it spend? by setting the min to 245MHZ & max to 1024MHZ how much? i overclocked to 1407MHZ , i saw more smoothness and speed; but i felt that its consuming more power!
is overclocking harmful to CPU? ( always overclocking )
Rom: MY One V RC4.0 FX
PrimoU GSM
Kernel: Latest Kiss Kernel

Hi
Political correct answer:
Of course OC "can" harm your device - like all OC´ing
Realistic answer:
Most One V devices can handle OCing up to 1.5 without problems
but since this may be specific to chip manifacturing there is no
guarantee that it is. Therefore before using any OC you should
test it very carefully.
And also - Of course running the chip at higher frequencies needs
more power. Simply physics .)
In "normal" daily use the difference is not big because the cpu will
not run at high frequencies most of the time. If you do things
like "heavy" gaming this is of course forcing the cpu to run faster.
To reduce the "effect" a little bit there is a kernel feature called
Undervolting (UV) with that you can reduce the voltage for
specific frequencies. Like OC this is device specific. So some
devices can run stable with more reduced voltage then others
BTW: why to you set the min frequency to 768?
This will limit that the frequency cannot go lower then that if the
device is idle. Running at 245 needs of course less power then 768
max

Thanks for the nice info, well, i heard that some users said that the best frequency for " My One V" rom:
Minimum: 768MHZ
MAX: 1407
I'm using "Set CPU" to OC
So setting the min frequency to 245MHZ will save more power, right?
Sent from my HTC One V using xda app-developers app

Satohiroshi said:
So setting the min frequency to 245MHZ will save more power, right?
Click to expand...
Click to collapse
Yes - especially for the time before the device can go into
"deep sleep" when beeing idle.
The only "disadvantage" is that depending on the govener that you use
there might be a small lag before the frequency scales up
Actually it depends if you notice it at all
If you use govener ondemand it should be no problem
if you use e.g. smartassV2 you might consider thinking about
using some tunables that will reduce that behaviour.
max

Thanks, yeah, i meant for normal activities, like checking Facebook,mail, watching movies ... So ondemand mode would be better
Sent from my HTC One V using xda app-developers app

maxwen said:
Yes - especially for the time before the device can go into
"deep sleep" when beeing idle.
The only "disadvantage" is that depending on the govener that you use
there might be a small lag before the frequency scales up
Actually it depends if you notice it at all
If you use govener ondemand it should be no problem
if you use e.g. smartassV2 you might consider thinking about
using some tunables that will reduce that behaviour.
max
Click to expand...
Click to collapse
What is your recommend governor to integrate with your Titanium-KISS kernel and what is your favourite I/O Scheduler tweaks, for daily use & heavy gaming?
I'm using smartassV2 & i set my I/O Scheduler to deadline until now, because it's peoples favourite
Should i change it to ondemmand to gain a better performance?

Hi
Actually there is already a lot of information about your question
in the KISS kernel thread.
Especially about how to tweak smartassV2 based on "profiles"
max

maxwen said:
Hi
Actually there is already a lot of information about your question
in the KISS kernel thread.
Especially about how to tweak smartassV2 based on "profiles"
max
Click to expand...
Click to collapse
uh, okay...i'll re-read the info once again :good:

Improving SOT without crippling performance

I see alot of people here claiming to have 6 hours of SOT on regular basis.
I dont see that is possible unless the phone is running whole day on 0% brightness with airplane mode on.
Is there any trick I'm missing on or what?

yes, root your device, install trickster mod, and put your cpu with noop and governor ondemand and min. 374mhz max. 1574mhz, and your gpu on powersave profile with 330Mhz on GPU! and of course lowering the brightness depending of your needs, if yu are outside you need to raise it, but if inside you can lower it!
i have ~6:40 OST with that settings

copy2050 said:
yes, root your device, install trickster mod, and put your cpu with noop and governor ondemand and min. 374mhz max. 1574mhz, and your gpu on powersave profile with 330Mhz on GPU! and of course lowering the brightness depending of your needs, if yu are outside you need to raise it, but if inside you can lower it!
i have ~6:40 OST with that settings
Click to expand...
Click to collapse
your performance must suffer.. does it?

IamFlynn said:
your performance must suffer.. does it?
Click to expand...
Click to collapse
no, my performance is good, no lag, no nothing...i cant see any problem with my device...with this is perfect to me!
i'm not a gamer, so i only play casual games on it and use basic stuff like music, camera and web browsing...and i tell you: my performance is superb!
because i have my phone bloat free, apllyed some mod's to build.prop and etc etc, is not only the trickster mod who gives to my phone this performance even with this settings!

Is Redmi note 8 pro locked at 2 GHz normal?

i've been using this phone for about 2 years now and recently moved (about a few months ago) to using a custom rom (crdroid 7.1.2). it was running smooth and cool until day the clockspeed decided to lock itself at 2000 MHz (checked using cpu-z). I do not know if this is normal but the phone's temperature goes up to 36C on idle. i thought the problem was with the Lspeed app (+custom kernel) so i uninstalled it but it didn't work. I also factory resetting it, but still not luck. will updating the firmware resolve my issue? if not, what other available solutions are there?

have you thought about flashing the stock kernel ?

Fytdyh said:
have you thought about flashing the stock kernel ?
Click to expand...
Click to collapse
I have, but it still gets hot

do you use a case ? does your phone goes over 45 degrees celsius when charging ?

Fytdyh said:
do you use a case ? does your phone goes over 45 degrees celsius when charging ?
Click to expand...
Click to collapse
I do use a case, but hasn't been this hot before recently, and it does tend to hit 40C when charging

topsecretasian said:
I do use a case, but hasn't been this hot before recently, and it does tend to hit 40C when charging
Click to expand...
Click to collapse
If you are using Fast Charging, that heating is entirely normal (happens to me too)
But heating during idle is not normal. Try changing CPU governor to something else. (like schedutil or powersave)

Canny1913 said:
If you are using Fast Charging, that heating is entirely normal (happens to me too)
But heating during idle is not normal. Try changing CPU governor to something else. (like schedutil or powersave)
Click to expand...
Click to collapse
Do you know how to change cpu governor? I tried doing it last night but didn't find a whole lot of information. Schedutil seems to just set it all the way to 2ghz, so I want to change it to powersave

topsecretasian said:
Do you know how to change cpu governor? I tried doing it last night but didn't find a whole lot of information. Schedutil seems to just set it all the way to 2ghz, so I want to change it to powersave
Click to expand...
Click to collapse
use Rootify, select the CPU tab located at the top then change it.
The app sometimes gets stuck at Loading screen though.

Canny1913 said:
use Rootify, select the CPU tab located at the top then change it.
The app sometimes gets stuck at Loading screen though.
Click to expand...
Click to collapse
ok so it does work when i change the cpu govenor, but the only option that actually works is 'powersave' (as well as 'userspace'). all the other ones still sets it to 2GHz. 'userspace' seems to have a somewhat of an improvement but it's only setting everything to a constant value. is there a way have it set to balanced mode?

topsecretasian said:
ok so it does work when i change the cpu govenor, but the only option that actually works is 'powersave' (as well as 'userspace'). all the other ones still sets it to 2GHz. 'userspace' seems to have a somewhat of an improvement but it's only setting everything to a constant value. is there a way have it set to balanced mode?
Click to expand...
Click to collapse
powersave forces the processor to work in the lowest frequency availible, thus consuming less power.
userspace allows the app to set the CPU frequency whatever it wants. This isn't supposed to be used in Android since changing CPU speed thorough an app is super uncommon.
Others like ondemand normally keep the power low but starts using the higher frequencies if a processor intensive app is launched.
You can learn which governors do what in this post so you can set the most suitable one for you.
[REF][GUIDE]Saber's guide on CPU governors, I/O schedulers and more!
Collective guide of CPU governors, I/O schedulers and other kernel variables I present to you a wonderful collection of descriptions, comparisons and graphs of common kernel variables. Before continuing on the wonderful journey of Linux kernel...
forum.xda-developers.com

Canny1913 said:
powersave forces the processor to work in the lowest frequency availible, thus consuming less power.
userspace allows the app to set the CPU frequency whatever it wants. This isn't supposed to be used in Android since changing CPU speed thorough an app is super uncommon.
Others like ondemand normally keep the power low but starts using the higher frequencies if a processor intensive app is launched.
You can learn which governors do what in this post so you can set the most suitable one for you.
[REF][GUIDE]Saber's guide on CPU governors, I/O schedulers and more!
Collective guide of CPU governors, I/O schedulers and other kernel variables I present to you a wonderful collection of descriptions, comparisons and graphs of common kernel variables. Before continuing on the wonderful journey of Linux kernel...
forum.xda-developers.com
Click to expand...
Click to collapse
I see. Well I guess it does work as a solution.
Thanks for the help!