Tuning Battery Life on Samsung Note 3 N900
I don't have a device anymore, but I still wish to share my experience and how I achieved 6 hours SoT with my typical daily usage on this phone.
This guide is for CM12.1 / AICP 10.0 (I recommend latter, it's the same CM 12.1 but with more options).
You can try this settings on aurora/stock ROMs with respective custom kernel (Suemax).
First of all, you need a kernel with Synapse support. This section is for CM12.1/AICP only! Don't try to flash these kernels if you are on Aurora/Stock - you'll have bootloop!
-- Download Stock and DJMax81's V2 kernel from this post and Suemax kernel from this post.
-- Make a backup
-- Flash CM12.1-DJmax81-Kernel-Lite-V2.zip
-- Boot your phone once and open Camera app to ensure it works.
-- Reboot to recovery and flash CM12.1-SueMax-Kernel-V3-By-DJMAX81.zip dirty. No need to wipe cashes.
-- If you encounter issues, restore backup or flash CM12.1-Stock.zip to return to the stock CM12.1 kernel.
Now you can fine-tune your Exynos!
First, disable touchboost. It's some sort of cheating Samsung use to make it's touchwiz not so laggy. On stock Android you simply don't need it, even if you set max CPU to lowly 250 Mhz, Stock Android UX is still decently smooth.
How to do this: open Synapse, go to the QoS tab. There are many, many sliders to control boost in different situations. Slide every one of them to the left. Now you gave full control of your phone freq to the governor.
This setting alone gave me up to 1 hour of SoT when texting or browsing. Because these are not demanding tasks and there's no need for CPU freq to ramp up.
Second, set min GPU speed to 100 MHz. This will save some juice when idle. Go to GPU Control in settings and set the corresponding Min freq slider to 100 MHz, then apply (you need to push the Set GPU settings button and a tick at the right top). You can also adjust Max GPU freq to suit your gaming needs. The more max GPU speed, the better gaming perfomance will be and the worse battery life in games (600 MHz stock value).
Third, let's go to Kernel Adiutor and here are some profiles for you that I found best!
Max Performance profile: Use zzmoove governor, max CPU speed to 1900 MHz, and at advanced governor settings set disable_hotplugging to 1.
Exynos hotplugging has rather negative effect on battery life as I found from my tests, you should never use it. If you are reading this and on Stock/Aurora ROM: disable hotplugging. It makes your battery life worse! Here is the test on Snapdragon 801, on Exynos hotpluging would yield even worse results because CPU with less core active will spend more time on unefficient A15 cores.
Zzmoove is the smoothest and fastest governor I found that still uses all available frequencies wisely.
That's the profile one should use for heavy games (and also set max GPU speed to 720 MHz in Synapse if you need it).
Performance profile: Use Interactive governor and max CPU speed 1900 MHz.
Interactive governor proactively ramps CPU to high (but not highest freq) to ensure great smoothness and still yield not-that-bad battery life (I had usually 4 hours SoT with 2G). For better fine-tuning you can go to advanced governor settings and set hispeed_freq to something in the middle, 800 MHz for example (but not lower than 800). hispeed_freq setting is the intermediate cpu speed which governor uses when there's initial load on cpu.
Balanced profile: Change governor to Ondemand, max CPU speed is still 1900 MHz.
You shouldn't worry, with touchboost disabled it would rarely ramp up to max speed, most often sitting on energy-efficient A7 cores and sometimes ramping to 1200 of A15, going even higher only when needed - still gives you whole power of your device without restrictions. DJMax81 did great job tuning this governor to our needs. You still can set max CPU lower (to 1400 Mhz) if you wish to conserve battery more on this profile.
Power saving profile: Go to Synapse and enable a slight touchboost: on QoS tab set CPU freq touchboost level 1 to 800 MHz (only the first slider). Then in Kernel Adiutor change CPU governor to Interactive. Set Max CPU speed to 1400. Go to advanced governor settings and set hispeed_freq to 400 MHz.
These settings are doing two things:
1. When not in use (e.g. you are not touching your phone), your device will use ONLY energy-efficient A7 cluster. So max 1300 MHz (it shows 650 MHz in Kernel Adiutor because A7 cluster is showing it's real freq divided by 2) with four cores - a performance level of middle-ground MTK device. Most often the phone will use 800 MHz freq of A7 (that's 400 MHz setting of hispeed_freq - a division by 2, remember)
2. When you are using device (actively tapping), touchboost will switch your device to A15 cores (starting from 800 MHz - at this freq they consume roughly same amount of energy as 1300 MHz'd A7) and if needed, interactive governor will ramp the freq even some more - up to 1400 MHz. When there will be no load, freq will drop to the minimum and system will switch to A7 cluster until next time you use it.
Extreme Power Saving profile: Disable touchboost, CPU governor is Interactive. At advanced governor settings set hispeed_freq to 400 MHz.
This makes your phone use ONLY energy-efficient A7 cluster no matter what circumstances. No matter what max CPU freq is set, interactive governor can't switch from A7 cluster to A15 (maybe that's a bug, but we'll use it). You can set max CPU speed to 650 MHz for sure, didn't make a difference for me.
Yes, it may lag. Yes, games are not playable. But we don't paint your screen black and white at least. Movies are fine, texting is fine, browsing too, 1300 MHz of A7 are still quite good - it's like low-end phone but with 3 GB RAM and AMOLED. Combine it with lollipop powersaving mode and GPU powersave bias (set in Synapse, always clocks GPU at 100 MHz). And your phone will go on and on and on...
Don't forget to click thanks button. Tell me your experience. My device is broken so there could be some mistakes. My apologizes. Have a nice day!
First. Thank u sir
Sent from my SM-A9000 using Tapatalk
Dude thank !!!!!!!
Where's Link's My Bro
Send From My N900. Resurrection Mix 5.5.9
hostess79197 said:
Where's Link's My Bro
Send From My N900. Resurrection Mix 5.5.9
Click to expand...
Click to collapse
Kernel Adiutor doesn't make profiles to share. You have to manually set parameters and then save profile for your device. That's only the guide of parameters to use for your needs.
Thanks for sharing.
I'm using TOS (a Chinese rom) now, and I got excellent battery life. The phone is still smooth.
If you're strict with battery life, TOS is really worth trying.
View attachment 3777633
View attachment 3777634
View attachment 3777635
Noyllopa said:
Thanks for sharing.
I'm using TOS (a Chinese rom) now, and I got excellent battery life. The phone is still smooth.
If you're strict with battery life, TOS is really worth trying.
View attachment 3777633
View attachment 3777634
View attachment 3777635
Click to expand...
Click to collapse
wow that battery life looks awesome, where u got the rom?
can u share it?
im still using kitkat rom myself since battery is better than any lollipop rom
ervanthe said:
wow that battery life looks awesome, where u got the rom?
can u share it?
im still using kitkat rom myself since battery is better than any lollipop rom
Click to expand...
Click to collapse
Here’s the download page. http://tos.cn/download/details-4.html
View attachment 3778089
SPEN working. But there‘s no GAPPS, you need to flash it yourself.
looking cool!
Noyllopa said:
Here’s the download page. http://tos.cn/download/details-4.html
View attachment 3778089
SPEN working. But there‘s no GAPPS, you need to flash it yourself.
Click to expand...
Click to collapse
is that rom based on cm or touch wiz? probably cm coz of u mentioned gapps. But spen is working is doubting me that is touchwiz. Also how big is that rom? and is it prerooted?
that battery pics that u showed r awesome!
is it stable to use in everyday?
any lags? and free ram available?
tnx ! cheers!
Anirup =) said:
is that rom based on cm or touch wiz? probably cm coz of u mentioned gapps. But spen is working is doubting me that is touchwiz. Also how big is that rom? and is it prerooted?
that battery pics that u showed r awesome!
is it stable to use in everyday?
any lags? and free ram available?
tnx ! cheers!
Click to expand...
Click to collapse
Based on Touch Wiz. In China google is blocked so there's no gapps.
The rom is already prerooted, you just need to open it in Manage(an app)-Permissons-Root access.
It's 905MB.
Now i'm using it everyday, it's quite stable and smooth. And games (e.g. Hearthstone) are playable.
I don't know how to install Xposed, it errors every time I want to flash it.
As for free ram, I don't know how to check it in this rom.
i want to know that if this kernel works on flyme rom
Sent from my SM-N900 using Tapatalk
Makshow said:
Tuning Battery Life on Samsung Note 3 N900
I don't have a device anymore, but I still wish to share my experience and how I achieved 6 hours SoT with my typical daily usage on this phone.
This guide is for CM12.1 / AICP 10.0 (I recommend latter, it's the same CM 12.1 but with more options).
You can try this settings on aurora/stock ROMs with respective custom kernel (Suemax).
First of all, you need a kernel with Synapse support. This section is for CM12.1/AICP only! Don't try to flash these kernels if you are on Aurora/Stock - you'll have bootloop!
-- Download Stock and DJMax81's V2 kernel from this post and Suemax kernel from this post.
-- Make a backup
-- Flash CM12.1-DJmax81-Kernel-Lite-V2.zip
-- Boot your phone once and open Camera app to ensure it works.
-- Reboot to recovery and flash CM12.1-SueMax-Kernel-V3-By-DJMAX81.zip dirty. No need to wipe cashes.
-- If you encounter issues, restore backup or flash CM12.1-Stock.zip to return to the stock CM12.1 kernel.
Now you can fine-tune your Exynos!
First, disable touchboost. It's some sort of cheating Samsung use to make it's touchwiz not so laggy. On stock Android you simply don't need it, even if you set max CPU to lowly 250 Mhz, Stock Android UX is still decently smooth.
How to do this: open Synapse, go to the QoS tab. There are many, many sliders to control boost in different situations. Slide every one of them to the left. Now you gave full control of your phone freq to the governor.
This setting alone gave me up to 1 hour of SoT when texting or browsing. Because these are not demanding tasks and there's no need for CPU freq to ramp up.
Second, set min GPU speed to 100 MHz. This will save some juice when idle. Go to GPU Control in settings and set the corresponding Min freq slider to 100 MHz, then apply (you need to push the Set GPU settings button and a tick at the right top). You can also adjust Max GPU freq to suit your gaming needs. The more max GPU speed, the better gaming perfomance will be and the worse battery life in games (600 MHz stock value).
Third, let's go to Kernel Adiutor and here are some profiles for you that I found best!
Max Performance profile: Use zzmoove governor, max CPU speed to 1900 MHz, and at advanced governor settings set disable_hotplugging to 1.
Exynos hotplugging has rather negative effect on battery life as I found from my tests, you should never use it. If you are reading this and on Stock/Aurora ROM: disable hotplugging. It makes your battery life worse! Here is the test on Snapdragon 801, on Exynos hotpluging would yield even worse results because CPU with less core active will spend more time on unefficient A15 cores.
Zzmoove is the smoothest and fastest governor I found that still uses all available frequencies wisely.
That's the profile one should use for heavy games (and also set max GPU speed to 720 MHz in Synapse if you need it).
Performance profile: Use Interactive governor and max CPU speed 1900 MHz.
Interactive governor proactively ramps CPU to high (but not highest freq) to ensure great smoothness and still yield not-that-bad battery life (I had usually 4 hours SoT with 2G). For better fine-tuning you can go to advanced governor settings and set hispeed_freq to something in the middle, 800 MHz for example (but not lower than 800). hispeed_freq setting is the intermediate cpu speed which governor uses when there's initial load on cpu.
Balanced profile: Change governor to Ondemand, max CPU speed is still 1900 MHz.
You shouldn't worry, with touchboost disabled it would rarely ramp up to max speed, most often sitting on energy-efficient A7 cores and sometimes ramping to 1200 of A15, going even higher only when needed - still gives you whole power of your device without restrictions. DJMax81 did great job tuning this governor to our needs. You still can set max CPU lower (to 1400 Mhz) if you wish to conserve battery more on this profile.
Power saving profile: Go to Synapse and enable a slight touchboost: on QoS tab set CPU freq touchboost level 1 to 800 MHz (only the first slider). Then in Kernel Adiutor change CPU governor to Interactive. Set Max CPU speed to 1400. Go to advanced governor settings and set hispeed_freq to 400 MHz.
These settings are doing two things:
1. When not in use (e.g. you are not touching your phone), your device will use ONLY energy-efficient A7 cluster. So max 1300 MHz (it shows 650 MHz in Kernel Adiutor because A7 cluster is showing it's real freq divided by 2) with four cores - a performance level of middle-ground MTK device. Most often the phone will use 800 MHz freq of A7 (that's 400 MHz setting of hispeed_freq - a division by 2, remember)
2. When you are using device (actively tapping), touchboost will switch your device to A15 cores (starting from 800 MHz - at this freq they consume roughly same amount of energy as 1300 MHz'd A7) and if needed, interactive governor will ramp the freq even some more - up to 1400 MHz. When there will be no load, freq will drop to the minimum and system will switch to A7 cluster until next time you use it.
Extreme Power Saving profile: Disable touchboost, CPU governor is Interactive. At advanced governor settings set hispeed_freq to 400 MHz.
This makes your phone use ONLY energy-efficient A7 cluster no matter what circumstances. No matter what max CPU freq is set, interactive governor can't switch from A7 cluster to A15 (maybe that's a bug, but we'll use it). You can set max CPU speed to 650 MHz for sure, didn't make a difference for me.
Yes, it may lag. Yes, games are not playable. But we don't paint your screen black and white at least. Movies are fine, texting is fine, browsing too, 1300 MHz of A7 are still quite good - it's like low-end phone but with 3 GB RAM and AMOLED. Combine it with lollipop powersaving mode and GPU powersave bias (set in Synapse, always clocks GPU at 100 MHz). And your phone will go on and on and on...
Don't forget to click thanks button. Tell me your experience. My device is broken so there could be some mistakes. My apologizes. Have a nice day!
Click to expand...
Click to collapse
Hello sir.... I am using sumax v3 karnel with the settings you have mentioned in the thread. Everything is fine... Battery life is great... No problem of heating... Speed is ok but i have facing a problem.... MY PHONE FREEZES RANDOMLY ANY SOLUTION PLEASE HELP. IT FREEZES WHEN SCREEN IS OFF AND I HAVE TO RESTART MY PHONE. I AM USING CYANOGENMOD 12.1. PROBLEM OCCURS ONLY WHEN I USE SUMMAX KARNEL AND PRESCRIBED SETTINGS.
set cpu gov ondemand because its hard to wake up cores on extreme low freq when on sleep mode
Sent from my SM-N900 using Tapatalk 2
Makshow said:
Tuning Battery Life on Samsung Note 3 N900
I don't have a device anymore, but I still wish to share my experience and how I achieved 6 hours SoT with my typical daily usage on this phone.
This guide is for CM12.1 / AICP 10.0 (I recommend latter, it's the same CM 12.1 but with more options).
You can try this settings on aurora/stock ROMs with respective custom kernel (Suemax).
First of all, you need a kernel with Synapse support. This section is for CM12.1/AICP only! Don't try to flash these kernels if you are on Aurora/Stock - you'll have bootloop!
-- Download Stock and DJMax81's V2 kernel from this post and Suemax kernel from this post.
-- Make a backup
-- Flash CM12.1-DJmax81-Kernel-Lite-V2.zip
-- Boot your phone once and open Camera app to ensure it works.
-- Reboot to recovery and flash CM12.1-SueMax-Kernel-V3-By-DJMAX81.zip dirty. No need to wipe cashes.
-- If you encounter issues, restore backup or flash CM12.1-Stock.zip to return to the stock CM12.1 kernel.
Now you can fine-tune your Exynos!
First, disable touchboost. It's some sort of cheating Samsung use to make it's touchwiz not so laggy. On stock Android you simply don't need it, even if you set max CPU to lowly 250 Mhz, Stock Android UX is still decently smooth.
How to do this: open Synapse, go to the QoS tab. There are many, many sliders to control boost in different situations. Slide every one of them to the left. Now you gave full control of your phone freq to the governor.
This setting alone gave me up to 1 hour of SoT when texting or browsing. Because these are not demanding tasks and there's no need for CPU freq to ramp up.
Second, set min GPU speed to 100 MHz. This will save some juice when idle. Go to GPU Control in settings and set the corresponding Min freq slider to 100 MHz, then apply (you need to push the Set GPU settings button and a tick at the right top). You can also adjust Max GPU freq to suit your gaming needs. The more max GPU speed, the better gaming perfomance will be and the worse battery life in games (600 MHz stock value).
Third, let's go to Kernel Adiutor and here are some profiles for you that I found best!
Max Performance profile: Use zzmoove governor, max CPU speed to 1900 MHz, and at advanced governor settings set disable_hotplugging to 1.
Exynos hotplugging has rather negative effect on battery life as I found from my tests, you should never use it. If you are reading this and on Stock/Aurora ROM: disable hotplugging. It makes your battery life worse! Here is the test on Snapdragon 801, on Exynos hotpluging would yield even worse results because CPU with less core active will spend more time on unefficient A15 cores.
Zzmoove is the smoothest and fastest governor I found that still uses all available frequencies wisely.
That's the profile one should use for heavy games (and also set max GPU speed to 720 MHz in Synapse if you need it).
Performance profile: Use Interactive governor and max CPU speed 1900 MHz.
Interactive governor proactively ramps CPU to high (but not highest freq) to ensure great smoothness and still yield not-that-bad battery life (I had usually 4 hours SoT with 2G). For better fine-tuning you can go to advanced governor settings and set hispeed_freq to something in the middle, 800 MHz for example (but not lower than 800). hispeed_freq setting is the intermediate cpu speed which governor uses when there's initial load on cpu.
Balanced profile: Change governor to Ondemand, max CPU speed is still 1900 MHz.
You shouldn't worry, with touchboost disabled it would rarely ramp up to max speed, most often sitting on energy-efficient A7 cores and sometimes ramping to 1200 of A15, going even higher only when needed - still gives you whole power of your device without restrictions. DJMax81 did great job tuning this governor to our needs. You still can set max CPU lower (to 1400 Mhz) if you wish to conserve battery more on this profile.
Power saving profile: Go to Synapse and enable a slight touchboost: on QoS tab set CPU freq touchboost level 1 to 800 MHz (only the first slider). Then in Kernel Adiutor change CPU governor to Interactive. Set Max CPU speed to 1400. Go to advanced governor settings and set hispeed_freq to 400 MHz.
These settings are doing two things:
1. When not in use (e.g. you are not touching your phone), your device will use ONLY energy-efficient A7 cluster. So max 1300 MHz (it shows 650 MHz in Kernel Adiutor because A7 cluster is showing it's real freq divided by 2) with four cores - a performance level of middle-ground MTK device. Most often the phone will use 800 MHz freq of A7 (that's 400 MHz setting of hispeed_freq - a division by 2, remember)
2. When you are using device (actively tapping), touchboost will switch your device to A15 cores (starting from 800 MHz - at this freq they consume roughly same amount of energy as 1300 MHz'd A7) and if needed, interactive governor will ramp the freq even some more - up to 1400 MHz. When there will be no load, freq will drop to the minimum and system will switch to A7 cluster until next time you use it.
Extreme Power Saving profile: Disable touchboost, CPU governor is Interactive. At advanced governor settings set hispeed_freq to 400 MHz.
This makes your phone use ONLY energy-efficient A7 cluster no matter what circumstances. No matter what max CPU freq is set, interactive governor can't switch from A7 cluster to A15 (maybe that's a bug, but we'll use it). You can set max CPU speed to 650 MHz for sure, didn't make a difference for me.
Yes, it may lag. Yes, games are not playable. But we don't paint your screen black and white at least. Movies are fine, texting is fine, browsing too, 1300 MHz of A7 are still quite good - it's like low-end phone but with 3 GB RAM and AMOLED. Combine it with lollipop powersaving mode and GPU powersave bias (set in Synapse, always clocks GPU at 100 MHz). And your phone will go on and on and on...
Don't forget to click thanks button. Tell me your experience. My device is broken so there could be some mistakes. My apologizes. Have a nice day!
Click to expand...
Click to collapse
Hello Where can I go to see the "Kernel Adiutor" whether I need to install it from PlayStore?
SAINI99 said:
set cpu gov ondemand because its hard to wake up cores on extreme low freq when on sleep mode
Sent from my SM-N900 using Tapatalk 2
Click to expand...
Click to collapse
Sir i have been already using ondemand governor but problem priciest i reflashed the rom and usesed with stock karnel for 2 days phone didn't freeze with stok karnel but as i flashed the karnel and set the given values it started freezing again... I want to use the karnel because everything is better than the stock one heating issue is major one with the rom but can be solved by the karnel but how to get rid of freezing problem.
Balraj77712 said:
Hello sir.... I am using sumax v3 karnel with the settings you have mentioned in the thread. Everything is fine... Battery life is great... No problem of heating... Speed is ok but i have facing a problem.... MY PHONE FREEZES RANDOMLY ANY SOLUTION PLEASE HELP. IT FREEZES WHEN SCREEN IS OFF AND I HAVE TO RESTART MY PHONE. I AM USING CYANOGENMOD 12.1. PROBLEM OCCURS ONLY WHEN I USE SUMMAX KARNEL AND PRESCRIBED SETTINGS.
Click to expand...
Click to collapse
Try to increase voltage slightly, +25 mV should be fine. Kernel Adiutor - CPU Voltage - Global at right top. It will not make any effect to battery life. If I remember correctly, Suemax kernel is a bit undervolted by default and if on most phones it's fine, on some it can make issues.
premryp007 said:
Hello Where can I go to see the "Kernel Adiutor" whether I need to install it from PlayStore?
Click to expand...
Click to collapse
You can install it from Play Store, if you don't have one. On my ROM it was just built-in. Synapse should be built-in in kernel, you can update it from Play Store as usual.
Makshow said:
Try to increase voltage slightly, +25 mV should be fine. Kernel Adiutor - CPU Voltage - Global at right top. It will not make any effect to battery life. If I remember correctly, Suemax kernel is a bit undervolted by default and if on most phones it's fine, on some it can make issues.
Sir i have set cpu voltage +25 the problem have been solved by doing so but some time cpu voltage automatically increased and phone start lagging and freezing... Any solution sir.. Thanks in advance.
Click to expand...
Click to collapse
Balraj77712 said:
Sir i have set cpu voltage +25 the problem have been solved by doing so but some time cpu voltage automatically increased and phone start lagging and freezing... Any solution sir.. Thanks in advance.
Click to expand...
Click to collapse
Hmm, can you tell some more about this? I don't even have a clue, how the voltage can be increased automatically and phone start to lagging from more voltage? Usually, it's the contrary: more voltage = more stability for overclock etc.
Makshow said:
Hmm, can you tell some more about this? I don't even have a clue, how the voltage can be increased automatically and phone start to lagging from more voltage? Usually, it's the contrary: more voltage = more stability for overclock etc.
Click to expand...
Click to collapse
Sir i set the cpu voltage by +25. Phone didn't freeze but after a day it freezed again when i checked the cpu voltage after restarting the phone it was the default values i set it by +25 again. After 7-8 hours some apps like Es file Explorer, Whats app, uc browser stopped working (saying like whats app is not responding) i was unable to move some content from phone to sd card. Other functions like settings, dialer etc. Was working. Phone didn't connect to pc. Neither restarted nor power off (restarting and shutting down.) after restarting the cpu voltage was more then the default values. See screenshots sir
Balraj77712 said:
Sir i set the cpu voltage by +25. Phone didn't freeze but after a day it freezed again when i checked the cpu voltage after restarting the phone it was the default values i set it by +25 again. After 7-8 hours some apps like Es file Explorer, Whats app, uc browser stopped working (saying like whats app is not responding) i was unable to move some content from phone to sd card. Other functions like settings, dialer etc. Was working. Phone didn't connect to pc. Neither restarted nor power off (restarting and shutting down.) after restarting the cpu voltage was more then the default values. See screenshots sir
Click to expand...
Click to collapse
Really strange. What ROM do you use? And build date.
Related
Rom: Leedroid V2.1, Axiom S V1.0, TrickDroid V5.0(EU)
Kernel: stock HTC, Lowkernel v1.0.1, Vistuous v06
Apps & scripts: SetCPU, CPU Editor, Quick system info pro
http://forum.xda-developers.com/showthread.php?p=28214411#post28213828
There are also some other people who reported the same issue in this thread.
I'v tried all these kernels on three ROMs and they reported the same problem. The cpu1(2nd core) always keeps as ondemand mode. I've to use CPU Editor and enable Dual Core Mode to force it to other mode but after a reboot, it will reset to ondemand again. Sticky Enabled has no use here.
Another thing is after a reboot, the cpu1 frequency will also get a reset to the kernel's max. frequency supported. I've to set it again too.
Use Quick system info pro, it will shows out the current cpu0/1 governor and cpu scaling range very clearly.
SetCpu looks messed up on One S. The max frequency actually works as cpu1's max frequency while min frequency actually works as cpu0's max frequency.
It has no club to run the cpu1 ondemand at max all day long, it's just a waste of battery. On such a powerful S4 cpu, it's also non-sense to use ondemand governor as default. Interactive, Conservative, SmartassV2 are all better choices.
As a result, by using CPU Editor to lower the cpu1's speed and switch to other governor, my battery on daily use improved.
Hi,
I have Xperia Neo V, GB 2.3.4, rooted, NightElf 10, codename_ei8ght, OC: 245-1400 MHz. Usually I use SmartassV2 + SIO (I don't know why SIO - I've been told to choose this one, so I did). I've also briefly tested many other governors, but to tell the truth, I don't see much real-life difference between them (apart from the CPU Spy logs).
The problem that bothers me is that I need to manually change the OC settings, each time I want to use an app or a game that don't need 1400 MHz. For example - when I want to play AngryBirds. The game works perfectly on 1000 MHz, so why waste the battery power and generate lots of heat? But any governor I know, will "give" 1400 MHz to this game. That's why I need to switch down manually before playing. The same thing with many other apps, like, for example - navigation. It's absolutely enough to navigate on 1000 MHz, but any governor will set the CPU to 1400 MHz when Navigation is running.
Looking for a truly wise governor, that would give as much MHz as needed for an app/game to run smoothly, but not more. Is such a governor even possible to create?
Thank you.
illinoi for
from my observation SmartAssV2 tends to change frequency too much: up, down, up, down. As I mostly want to get best battery life I decided to switch to Conservative - the phone is still responsive (i can't notice difference) but when I dont do anything seems to keep the frequency lower.
I still have problem what governor to choose for sleep state - now im testing PowerSave (so it keeps minimal frequence) so far seems to work (even worked while playing music).
IMO writing too complicated governors could only slow down the system, so it is hard task to decide in real time which frequency is still sufficient for smooth play and at the same time as low as possible.
Do all governors have "deep sleep" mode? Is it governor-dependent at all?
I have some problems with refreshing news widget - I discovered that it is never refreshed in deep sleep mode.
Can I disable deep sleep mode?
Thanks.
I running CROMI 3.1 with Clemsyn custom 1.5-1.8 mhz. When I use System Tuner pro I can set the cpu options anywhere from 51 as a low up to 1.8 as a high. My question is how does STP interact with the custom kernel and the Asus Custom power settings and the regular power settings in "settings"?
The kernel still controls the max freq for each of the asus governors but system tuner my report the performance max freq.
So for example on balance mode if the kernel allows 1.5ghz you might see and be able to set a max speed of 1.8ghz (as that is the absolute max freq the kernel allows) but as long as you stay in balanced mode you won't get above 1.5ghz. As soon as you change to performance mode you will get your 1.8ghz
I think STP is intelligent enough to override the asus governors as well. I was messing with the clemsyn 1.7ghz kernel earlier and another tool reported 1.7ghz in perf mode. As soon as I opened STP it also recognised 1.7ghz as the max but allowed me to bump it up to 1.8ghz at which point the asus governor also allowed 1.8ghz.
Hope that makes sense.
sbdags said:
The kernel still controls the max freq for each of the asus governors but system tuner my report the performance max freq.
So for example on balance mode if the kernel allows 1.5ghz you might see and be able to set a max speed of 1.8ghz (as that is the absolute max freq the kernel allows) but as long as you stay in balanced mode you won't get above 1.5ghz. As soon as you change to performance mode you will get your 1.8ghz
I think STP is intelligent enough to override the asus governors as well. I was messing with the clemsyn 1.7ghz kernel earlier and another tool reported 1.7ghz in perf mode. As soon as I opened STP it also recognised 1.7ghz as the max but allowed me to bump it up to 1.8ghz at which point the asus governor also allowed 1.8ghz.
Hope that makes sense.
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So, am I correct when saying that the custom kernel establishes the min and max parameters and the Asus govenors will will select the low, mid and max points (btw in Asus settings which takes precedent in system performance settings Asus Customize or Power settings?) and STP will let you override all of them no matter where they are set. This can get confusing
Also, in the 1.5-1.8 ghz what is the diff btw power saving mode and balanced mode?
lartomar2002 said:
So, am I correct when saying that the custom kernel establishes the min and max parameters and the Asus govenors will will select the low, mid and max points (btw in Asus settings which takes precedent in system performance settings Asus Customize or Power settings?) and STP will let you override all of them no matter where they are set. This can get confusing
Also, in the 1.5-1.8 ghz what is the diff btw power saving mode and balanced mode?
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Right stp is bound by the kernel min and max.
On all the kernels included in my rom and kernel Installer the power saving mode is 1ghz.
In power saving settings this is which Asus governor should be used once the battery drops below whatever % you set it to.
Lately I've tried to use underclock and undervolt to improve the bad battery life of the Mi4c. I tried different values on the XOSP 7.1 (https://forum.xda-developers.com/mi-4c/development/unofficial-xosp-7-1-libra-aqua-t3551296) in the past days, and I discovered a combination of clock of the cpu and governor that seems to work quite nicely.
REQUIREMENTS:
Rooted phone
Kernel that provides the possibility to change this values
Busybox and Kernel Adiutor or analogue app
Recommended the use of XOSP 7.1 Rom (Not necessary)
Greenify
STEPS:
After having enabled the root access to busybox and Kernel Adiutor(the apps will ask you this to you when you first open them, just check "enable"), enter in Kernel Adiutor in the CPU section and dial in the following values.
BIG CORES: Max Frequency = 864 Mhz / Min = 302 Mhz
SMALL CORES: Max Frequency = 672 Mhz / Min = 302 Mhz
For both cores use "smartmax" Governor (this setting is right below the Frequency dials).
GPU: Max Frequency = 450 Mhz / Min = 180 Mhz.
Governor: simple_ondemand.
As last step, go in development settings and watch for active apps that you don't need and with Greenify disable them. This should help the battery even more. Remember to freeze only apps that don't send notification, otherwise you will not receive them until you open the apps.
REVIEW:
Yesterday I had a pretty heavy day, I used the phone quite a lot both with Wi-Fi and 3G and I ended up with 4:30 h Screen On Time and I even had 20% left. I really hope that this may help some of you because I know how stressful this is and I decided to share my experience with you.
Why you need to pay a 1k8Mhz phone to use 864Mhz, i can get to 5h without any configure cpu clock with lastest miui rom.
Hi guys.
Anyone here know how to improve gaming performance without making the device getting hot?
Cause everytime I'm playing pubg mobile my phone getting hotter.
Kindly Let me know your kernel adiutor setting. Maybe it can fix my thermal problem.
Thankyou ?
Maybe now you've already sell your mi5s. But as my daily driver, my mi5s should set CPU governor to OnDemand and GPU to simple_ondemand. And of course you have to disable TouchBoost for all cores.
It will help your phone not necessarily scale up freq, especially when using chatting app.
Default CPU governor (Interactive) tends to scale up too high, which is not too important to me. Default GPU governor (msm_adreno_tz) works at 214 MHz when idle, but simple_on_demand works at 133 MHz and scale up necesarily.