Database Users

[GUIDE] Governors for NOOBS

Interactive - Instead of sampling the cpu at a specified rate, the governor will scale the cpu frequency up when coming out of idle. When the cpu comes out of idle, a timer is configured to fire within 1-2 ticks. If the cpu is 100% busy from exiting idle to when the timer fires then we assume the cpu is underpowered and ramp to MAX speed.
Smartass- Is an improved version of interactive governor
Ondemand – Available in most kernels, and the default governor in most kernels. When the CPU load reaches a certain point (see “up threshold” in Advanced Settings), ondemand will rapidly scale the CPU up to meet demand, then gradually scale the CPU down when it isn't needed.
Conservative– Available in some kernels. It is similar to the ondemand governor, but will scale the CPU up more gradually to better fit demand. Conservative provides a less responsive experience than ondemand, but can save battery.
Performance – Available in most kernels. It will keep the CPU running at the “max” set value at all times. This is a bit more efficient than simply setting “max” and “min” to the same value and using ondemand because the system will not waste resources scanning for CPU load.
Powersave – Available in some kernels. It will keep the CPU running at the “min” set value at all times.
Userspace– A method for controlling the CPU speed that isn't currently used by SetCPU. For best results, do not use the userspace governor.
Hope those will able to help newbies to SetCPU or No Frills CPU.
Credit to LeeDroid for the infos

I believe Interactive is the most responsive kernel out there. Faster than ondemand. So it'll technically use more power when you are using the phone.
HOWEVER, isn't the best feature of Smartass the ability to cap frequencies when the screen is OFF? This essentially negates the need for using SetCPU to limit frequenceis when screen is off. Yes it's an improved version of interactive, but it should be just as responsive, but with these set limits in. I'm just not sure what the specific rules are. I used it for my Moto Milestone, but I'm unsure of what the rules are here.

window7 said:
Interactive - Instead of sampling the cpu at a specified rate, the governor will scale the cpu frequency up when coming out of idle. When the cpu comes out of idle, a timer is configured to fire within 1-2 ticks. If the cpu is 100% busy from exiting idle to when the timer fires then we assume the cpu is underpowered and ramp to MAX speed.
Smartass - Is an improved version of interactive governor
Ondemand – Available in most kernels, and the default governor in most kernels. When the CPU load reaches a certain point (see “up threshold” in Advanced Settings), ondemand will rapidly scale the CPU up to meet demand, then gradually scale the CPU down when it isn't needed.
Conservative – Available in some kernels. It is similar to the ondemand governor, but will scale the CPU up more gradually to better fit demand. Conservative provides a less responsive experience than ondemand, but can save battery.
Performance – Available in most kernels. It will keep the CPU running at the “max” set value at all times. This is a bit more efficient than simply setting “max” and “min” to the same value and using ondemand because the system will not waste resources scanning for CPU load.
Powersave – Available in some kernels. It will keep the CPU running at the “min” set value at all times.
Userspace – A method for controlling the CPU speed that isn't currently used by SetCPU. For best results, do not use the userspace governor.
Hope those will able to help newbies to SetCPU or No Frills CPU.
And do correct me if I am wrong. Thank you
Click to expand...
Click to collapse
You should credit the source you copy and pasted that from. Or even better post the link.
Sent from my Nexus S using XDA App

dmo580 said:
I believe Interactive is the most responsive kernel out there. Faster than ondemand. So it'll technically use more power when you are using the phone.
HOWEVER, isn't the best feature of Smartass the ability to cap frequencies when the screen is OFF? This essentially negates the need for using SetCPU to limit frequenceis when screen is off. Yes it's an improved version of interactive, but it should be just as responsive, but with these set limits in. I'm just not sure what the specific rules are. I used it for my Moto Milestone, but I'm unsure of what the rules are here.
Click to expand...
Click to collapse
SMARTASS is a rewrite of the INTERACTIVE governor, and it moves the CPU up/down depending on whether the phone is idle/locked/ ... etc.
But some problems that I experience with SMARTASS is that my music playback sometimes stutters(?). So I'm just sticking with INTERACTIVE.

http://setcpu.com
edit:/#7 didnt seem to work right?

matt2053 said:
You should credit the source you copy and pasted that from. Or even better post the link.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
Thanks for telling me that. I had changed it
However, I cant post the link as I cannot find the source I find it.
I only know that LeeDroid provided me the details

window7 said:
Thanks for telling me that. I had changed it
However, I cant post the link as I cannot find the source I find it.
I only know that LeeDroid provided me the details
Click to expand...
Click to collapse
I believe it comes from SetCPU's website.
Http://www.setcpu.com
Sent from my Nexus S using XDA App

olorin86 said:
SMARTASS is a rewrite of the INTERACTIVE governor, and it moves the CPU up/down depending on whether the phone is idle/locked/ ... etc.
But some problems that I experience with SMARTASS is that my music playback sometimes stutters(?). So I'm just sticking with INTERACTIVE.
Click to expand...
Click to collapse
Is this because your screen is off? Yeah, smartass has some issues when the screen is off. Main issue is wakeup and whatever else your phone has to do. I know the Netarchy kernel with smartass just got a revision lately to deal with more wake issues.
But in terms of when your screen is on smartass should function exactly like interactive. So that's why I said smartass is essentially interactive, but with those preset rules regarding screen off that you would otherwise have to create using SetCPU.
The reason you might have worse battery might be because during screen off, your phone is struggling to do work at a slower pace (ideally you shouldn't have to do much, but maybe some people's phones have a lot of stuff running in the background), and so the more time you spent with the CPU active ends up eating more power.
This is one of the arguments about Intel Atom vs. Intel i3. Both idle at the same wattage, but the i3 uses massively more power in load. Probably 2x-3x more. However, given that the i3 is like so FAST, it gets say an encoding job done in like 1/4 the time. Your overall power (Watts * time) used is actually less with the faster CPU. This might apply with the Smartass governor. If your CPU is struggling and maxing out at its cap for a long time because its not fast enough when the screen is off, then perhaps this can be an issue. Just a thought. This is why I think the max_freq for sleep should probably be set around 500-600mhz instead of like 200mhz.
But once again I'm not sure what the governor is set at right now. If someone knows, please do tel

Setcpu Governers ?

okay im sorry if this is one of the most noobish questions, but what exactly are governors , and how do they help ?
Sent from my Mytouch 4G Running Capychimps Sense 3.5 rom (v.4.0)

Cpu governors "govern" how the cpu works. There is a list somewhere that explains what a few of them do. Basically they dictate how your cpu behaves and therefore the performance you see and power consumption you experience. I'll see if I can find that list.
Edit:
- The ondemand governor is the default option used by Android. It scales the CPU speed between the minimum and maximum speeds depending on CPU load. If the system needs more speed, the kernel will rapidly scale up the CPU speed. - The conservative sets the CPU speed in a similar way to the ondemand governor, but scales the CPU up much less rapidly. This would theoretically save battery power, but may lead to less responsiveness. - The userspace governor is currently useless. It's another way for applications to set the CPU speed that SetCPU does not use. - The powersave governor always keeps the CPU at the minimum set frequency. - The performance governor always keeps the CPU at the maximum set frequency.
Except for "userspace," no matter which governor you set, the CPU will always stay within the bounds of the maximum and minimum speeds you set in SetCPU.
smartass governor -is based on the concept of the interactive governor. I have always agreed that in theory the way interactive works -by taking over the idle loop -is very attractive. I have never managed to tweak it so it would behave decently in real life. Smartass is a complete rewrite of the code plus more. I think its a success. Performance is on par with the "old" minmax and I think smartass is a bit more responsive. Battery life is hard to quantify precisely but it does spend much more time at the lower frequencies. Smartass will also cap the max frequency when sleeping to 352Mhz (or if your min frequency is higher than 352 -why?! -it will cap it to your min frequency). Lets take for example the 528/176 kernel, it will sleep at 352/176. No need for sleep profiles any more!
Sent from my HTC Glacier using XDA App

estallings15 said:
Cpu governors "govern" how the cpu works. There is a list somewhere that explains what a few of them do. Basically they dictate how your cpu behaves and therefore the performance you see and power consumption you experience. I'll see if I can find that list.
Edit:
- The ondemand governor is the default option used by Android. It scales the CPU speed between the minimum and maximum speeds depending on CPU load. If the system needs more speed, the kernel will rapidly scale up the CPU speed. - The conservative sets the CPU speed in a similar way to the ondemand governor, but scales the CPU up much less rapidly. This would theoretically save battery power, but may lead to less responsiveness. - The userspace governor is currently useless. It's another way for applications to set the CPU speed that SetCPU does not use. - The powersave governor always keeps the CPU at the minimum set frequency. - The performance governor always keeps the CPU at the maximum set frequency.
Except for "userspace," no matter which governor you set, the CPU will always stay within the bounds of the maximum and minimum speeds you set in SetCPU.
smartass governor -is based on the concept of the interactive governor. I have always agreed that in theory the way interactive works -by taking over the idle loop -is very attractive. I have never managed to tweak it so it would behave decently in real life. Smartass is a complete rewrite of the code plus more. I think its a success. Performance is on par with the "old" minmax and I think smartass is a bit more responsive. Battery life is hard to quantify precisely but it does spend much more time at the lower frequencies. Smartass will also cap the max frequency when sleeping to 352Mhz (or if your min frequency is higher than 352 -why?! -it will cap it to your min frequency). Lets take for example the 528/176 kernel, it will sleep at 352/176. No need for sleep profiles any more!
Sent from my HTC Glacier using XDA App
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Click to collapse
wow ! , thanks i guess im gonna get rid of my sleeping profile and start using smartass, thanks for the help
Sent from my Mytouch 4G Running Capychimps Sense 3.5 rom (v.4.0)

do you happen to know any info about smartassv2 ? , i just checked my list and i have both smartass and smartassv2
Sent from my Mytouch 4G Running Capychimps Sense 3.5 rom (v.4.0)

You're welcome! By the way, I'd appreciate it if you'd hit the Thanks button. I help people all the time and am rarely thanked. I'm starting to get a complex. Ha.
Sent from my HTC Glacier using XDA App

jjbat87 said:
do you happen to know any info about smartassv2 ? , i just checked my list and i have both smartass and smartassv2
Sent from my Mytouch 4G Running Capychimps Sense 3.5 rom (v.4.0)
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Click to collapse
Smart ass v2 is just an update of smart ass v1
Sent from my HTC Glacier using XDA App

[Q] Performance management- Gov and I/O

Hi,
Can anyone direct me to some info on altering CPU settings on my N10?
I've recently rooted and flashed the latest AOKP ROM and am interested in the performance control.
The current max is set to 1700Mhz which, of course, is the rated value for the CPU. Will I do any damage by increasing it and what effects do changing the voltage setting have?
Also, is there a guide to using Governor and IO schedulers?
Thanks in advance.

Pharmbob said:
Hi,
Can anyone direct me to some info on altering CPU settings on my N10?
I've recently rooted and flashed the latest AOKP ROM and am interested in the performance control.
The current max is set to 1700Mhz which, of course, is the rated value for the CPU. Will I do any damage by increasing it and what effects do changing the voltage setting have?
Also, is there a guide to using Governor and IO schedulers?
Thanks in advance.
Click to expand...
Click to collapse
Well I have to say that I haven't come across any device specific tutorials for governors or schedulers, and I would love to see someone put one together for the N10. My understanding is that the stock MHz value is purposely set on the slightly lower side to prevent any possibility of electrical issues. In regards to the voltage, lowering it may cause loss of display due to a lack of power and a major problem with increasing voltages is usually thermal throttling from high CPU temperatures.
But if you're interested in more governor and over clocking capabilities you should look at the KTManta kernel, I'm running it right now. You should be able to relatively safely over clock up to 1800MHz without crazy effects, but much more than that and you'll significantly reduce the tablet life.
Sent from my Nexus 10 using XDA Premium HD app

Huggogguh said:
Well I have to say that I haven't come across any device specific tutorials for governors or schedulers, and I would love to see someone put one together for the N10. My understanding is that the stock MHz value is purposely set on the slightly lower side to prevent any possibility of electrical issues. In regards to the voltage, lowering it may cause loss of display due to a lack of power and a major problem with increasing voltages is usually thermal throttling from high CPU temperatures.
But if you're interested in more governor and over clocking capabilities you should look at the KTManta kernel, I'm running it right now. You should be able to relatively safely over clock up to 1800MHz without crazy effects, but much more than that and you'll significantly reduce the tablet life.
Sent from my Nexus 10 using XDA Premium HD app
Click to expand...
Click to collapse
Does overclocking to 1800MHz make much of a difference to performance?

I've just flashed the KTMANTA kernel and I am impressed.
Would it be detrimental to increase the GPU Max?

Pharmbob said:
I've just flashed the KTMANTA kernel and I am impressed.
Would it be detrimental to increase the GPU Max?
Click to expand...
Click to collapse
im not on AOKP ROM so i dont know how the CPU performance is optimized but on original rom the CPU speed rarely/never gets over
1000mhz
so overclocking to 1800mhz is pointless.
you need to upper the boost pulse instead

Patrik G said:
im not on AOKP ROM so i dont know how the CPU performance is optimized but on original rom the CPU speed rarely/never gets over
1000mhz
so overclocking to 1800mhz is pointless.
you need to upper the boost pulse instead
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Click to collapse
And what does the boost pulse do?

Pharmbob said:
And what does the boost pulse do?
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Click to collapse
it will boost the CPU speed higher when its under load
change this settings (leave the rest at default) in KTweakerT and the N10 will fly
CPU Governor: pegasusq
I/O Scheduler: ROW
under "Governor Adjustmensts" change these:
boostpulse_value: 1700
up_threshold: 40
up_threshold_at_min_freq: 20
Under Extras:
to keep your saved settings when the screen i off you will need to change the "Screen off profile Mhz" to something else than the Defualt setting
change it to 100mhz
also go in under the "Thermal Throttle Control" (settings for kids)
change these values to:
CPU start Throttle: 100
CPU Stop Throttle: 99
Memory Start Throttle: 100
Memory Stop Throttle: 99
that is the only way to get rid of the Throttling control.
one note is when you play games lock the min/max mhz to the same speed for an example (MIN 1500mhz/MAX 1500mhz)
its the up/down CPU speeds changes that causes it to lag
for movies lock the min/max speed at 800mhz and your blu ray movies will play without microstutter
also use BS player that has the fastest HW decoding
NOW Enjoy your Nexus 10 as it was ment to be used

Patrik G said:
it will boost the CPU speed higher when its under load
change this settings (leave the rest at default) in KTweakerT and the N10 will fly
CPU Governor: pegasusq
I/O Scheduler: ROW
under "Governor Adjustmensts" change these:
boostpulse_value: 1700
up_threshold: 40
up_threshold_at_min_freq: 20
Under Extras:
to keep your saved settings when the screen i off you will need to change the "Screen off profile Mhz" to something else than the Defualt setting
change it to 100mhz
also go in under the "Thermal Throttle Control" (settings for kids)
change these values to:
CPU start Throttle: 100
CPU Stop Throttle: 99
Memory Start Throttle: 100
Memory Stop Throttle: 99
that is the only way to get rid of the Throttling control.
one note is when you play games lock the min/max mhz to the same speed for an example (MIN 1500mhz/MAX 1500mhz)
its the up/down CPU speeds changes that causes it to lag
for movies lock the min/max speed at 800mhz and your blu ray movies will play without microstutter
also use BS player that has the fastest HW decoding
NOW Enjoy your Nexus 10 as it was ment to be used
Click to expand...
Click to collapse
Thanks for the info, I'm apprehensive about altering the thermal settings though. Will letting the processor get as hot as 100 degrees not reduce the life of the chip?

Pharmbob said:
Will letting the processor get as hot as 100 degrees not reduce the life of the chip?
Click to expand...
Click to collapse
sure if it would
i have already measured the CPU temp without the back case and its nowhere near 100 degrees
50 is more true so you are safe even without the Throttling control.
the thermal throttling control isnt measuring temps it only guess them.

Patrik G said:
it will boost the CPU speed higher when its under load
change this settings (leave the rest at default) in KTweakerT and the N10 will fly
CPU Governor: pegasusq
I/O Scheduler: ROW
under "Governor Adjustmensts" change these:
boostpulse_value: 1700
up_threshold: 40
up_threshold_at_min_freq: 20
Under Extras:
to keep your saved settings when the screen i off you will need to change the "Screen off profile Mhz" to something else than the Defualt setting
change it to 100mhz
also go in under the "Thermal Throttle Control" (settings for kids)
change these values to:
CPU start Throttle: 100
CPU Stop Throttle: 99
Memory Start Throttle: 100
Memory Stop Throttle: 99
that is the only way to get rid of the Throttling control.
one note is when you play games lock the min/max mhz to the same speed for an example (MIN 1500mhz/MAX 1500mhz)
its the up/down CPU speeds changes that causes it to lag
for movies lock the min/max speed at 800mhz and your blu ray movies will play without microstutter
also use BS player that has the fastest HW decoding
NOW Enjoy your Nexus 10 as it was ment to be used
Click to expand...
Click to collapse
Sorry for being such a noob but this is my first android device. I installed the kt room and the tweaker it all works fine. Bit whem i changed the room all my stift dissapeard. I vacker up my last rom can i just switch to that and backup with titan?
Btw it improved gta gaming very much. Bit what happens IF i always have the min/max on 1500?
Sent from my Nexus 10 using XDA Premium HD app

p0xis said:
Bit what happens IF i always have the min/max on 1500?
Sent from my Nexus 10 using XDA Premium HD app
Click to expand...
Click to collapse
the tablet will explode after 30 minutes.
its the new Self destruction detection from samsung.

[Q] Recommended kernel settings?

Anyone have any recommend kernel settings they have set with Trickster or similar app for better battery life, performance, etc?

MoNsTeReNeRgY22 said:
Anyone have any recommend kernel settings they have set with Trickster or similar app for better battery life, performance, etc?
Click to expand...
Click to collapse
Deadline scheduler @640
Fifo:9
Read:30
Write:250
Writes_starved:1
Conservative governor
Down:30
Up:60
Sampling down factor:1
multi core power saving: 1
You'll probably notice little actual difference with some theoretical battery life improvements.
CPU doesn't scale to max as much. Conservative is smoother than ondemand and pairs well with deadline that at 640 read ahead increases write speeds.

Will give it a shot, Thank you
Sent from my VS980 4G using Tapatalk 4

[Guide] Get rid of lag in games / Interactive gov is bugged!

Hi guys,
I have the 855 version of this phone, and I have noticed that, even if Antutu scores are spot on (44k), in games such as GT racing 2 or similar I get a lot of lag.
Now, everyone will think "there are 1000 threads about lag, stick to those". Unfortunately, tricks such as getting rid of the thermal protection are really not good options, as the phone temperature will start to skyrocket.
There's a much easier and safer solution: root the phone and change the governor from interactive to conservative.
With interactive gov and CPU temp open in the background, I have noticed the CPU frequency bounces continuously up and down between 300mhz and 2400, even if the CPU temp is only 55c or so. This is causing the lag! Interactive governor is severely bugged, and this happens with any rom (I have tried both the stock 20h and the ChupaChups 4.2) and kernel (non AOSP at least).
Then, I switched to conservative, launched the game again, and guess what....now the frequency is nicely stable at 2457mhz throughout the entire gameplay and lag is gone completely. Temperatures? Totally fine: max 60c while playing and usually between 35 and 40 while whatsapping.
I literally tried everything to get rid of this damn lag, and the only thing that worked before this solution was to use a different kernel (chupa chups 2.1) and changing the governor...but I was getting crazy high temperatures, that sometimes touched 80c, and this was with a very heavy undervolt too! So I recommend to use the stock kernel, because it's the only one - for me at least - that grants good performances (and by that I mean no lag in games whatsoever and constant 2450mhz while playing) with good temperatures.
Any other option, including undervolting and trying different kernels didn't work for me, because either the CPU frequency kept shifting up and down every second causing lag, or - when I managed to keep it stable using different kernels and undervolting - the CPU temperature while playing got way too high (70c+, touching 80c sometimes).
To sum it up
1) Stick to stock rom and stock kernel (because of temperature issues)
2) Root
3) Change governor from interactive to conservative with Trickstermod (busybox required)
4) Enjoy smooth gaming experience and very good temperatures, with no significant throttle whatsoever!
Hope this helps!

as far as i know, conservative puts the cpu speed into the lowest possible, thus i thought won't be good for gaming performance.
nevertheless, i'd try for a few days and see if there's any noticeable difference.
thanks for sharing the knowledge, OP!

superbonto said:
as far as i know, conservative puts the cpu speed into the lowest possible, thus i thought won't be good for gaming performance.
nevertheless, i'd try for a few days and see if there's any noticeable difference.
thanks for sharing the knowledge, OP!
Click to expand...
Click to collapse
Theoretically you are right. But...interactive is bugged. Ondemand doesn't work (it will make your phone freeze) and performance will drain too much battery. So we are pretty much left with conservative.
Give it a try, and when you do, make sure you have CPU temp open to monitor both temperature and cpu frequency!
Let me know

Thank you! It really did the trick, gaming became MUCH better.
I tried RR3 - it became a lot better. On interactive it lags even in menu, on conservative it's rendering at 23-30 fps with slight not-game-breaking lags.

Battery
And about the battery? Will drain more in conservative than interactive? And will speed up the phone in all app or only in heavy games, when cpu is more active?

YaDr said:
Thank you! It really did the trick, gaming became MUCH better.
I tried RR3 - it became a lot better. On interactive it lags even in menu, on conservative it's rendering at 23-30 fps with slight not-game-breaking lags.
Click to expand...
Click to collapse
Cool! Glad this worked for you. What's your full load cpu temp?
Delgadovsky said:
And about the battery? Will drain more in conservative than interactive? And will speed up the phone in all app or only in heavy games, when cpu is more active?
Click to expand...
Click to collapse
I wouldn't worry about battery life..

It seems that this working generally, phone is much snappier and smooth for me than on interactive.

Yeah...the reason is that LG did an awful job with the interactive governor, and what's even worse is that it's actually using it as the default one.
Pretty incredible how bugged this is.

Yes but I think it's possible to make script in init.d folder to run conservative on boot as default. Maybe someone make one.

I Will try this ☺only for curiosity! I need busybox installed too or trickstermod only?

I've been doing the same thing for a long time now. I use SetCPU to automatically switch to the performance governor whenever the screen is on, and interactive whenever the screen is off.
You may also want to consider disabling mpdecision and thermald also. One of the two (probably mpdecision) will regularly change the governor back to interactive if you don't.

gianrond said:
Cool! Glad this worked for you. What's your full load cpu temp?
I wouldn't worry about battery life..
Click to expand...
Click to collapse
about 80°

I'm running Rin kernel with Lionheart governor on stock kit kat on a D850. It's ages better than interactive. I have plenty of governors to choose from, I'll slowly try them all.

omegajester said:
I'm running Rin kernel with Lionheart governor on stock kit kat on a D850. It's ages better than interactive. I have plenty of governors to choose from, I'll slowly try them all.
Click to expand...
Click to collapse
That works to get rid of the lag...but my phone was reaching easily 80c.
Now, with everything stock, the frequency stays nicely at 2457mhz with no throttle at all and the in-game temperature only maxes out at 63/64c.

Thanks for sharing this brother...just switched to conservative in trickster and I'll see how it goes.
I'm on crash Rom stock kernel with thermal mod activated...
Don't have any temperature issues till now expert while playing heavy games for some time.
Thanks again

Are the settings in trickstermod applied as you change the setting ? Or do you need to apply them manually ?
Also, do they apply on boot ?

I will try that, thx for the info.
Now how i can put it to change on boot?
Sent from my LG-D855 using XDA Free mobile app

JohnRM said:
Are the settings in trickstermod applied as you change the setting ? Or do you need to apply them manually ?
Also, do they apply on boot ?
Click to expand...
Click to collapse
On the latest trickster version you hit the upper right settings icon and the first four option that appear are under the set on boot part.check the kernel setting to be set on boot and you are done.
Of course after changing the governor that is...
danielferrari said:
I will try that, thx for the info.
Now how i can put it to change on boot?
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse

I tested the "on boot' options and didnt work here.
Someone can run a benchmark with this mod? Mine was 38880 in interactive and 23000 with conservative lol
Sent from my LG-D855 using XDA Free mobile app

danielferrari said:
I tested the "on boot' options and didnt work here.
Someone can run a benchmark with this mod? Mine was 38880 in interactive and 23000 with conservative lol
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
41k with conservative here, and latest v20i. Everything stock.