Current Release: 12/20/2012(JB)/10/03/2012(GB+ICS)
Important, Please read: There are now two kernel versions starting with 8/10/2012 release, one for GB+limited ICS(no HWA) support and another for the ICS branch with HWA. Changes will be loggged separately for each kernel type. If you see no changelogs specifically for that type, then there's no release made. For example, 8/10/12 for GB is a continuation of the 3/21 release with none of the post-3/21 kernel ICS changes made.
Update 9/21/12: As of 9/21/12, jellybean is officially supported with the JB specific kernels.
First of all, I started this thread to make commenting and tracking easier for the incredikernel releases following Chad's latest release (8/15/2011).
I also wanted to make a distinction between Chad's initial kernels and the ones I've updated since that release and this is one way to do it. Initially I didn't want to do that but now I regretted not splitting sooner.
If you want the changelog for anything prior to my first kernel please refer to:
Chad's Incredikernel thread
Changelog:
11/30/2013 JB 4.3
Android 4.3 support
synced with updates from Android 4.3 Evervolv kernel
04/25/2013 ICS Sense+JB 4.2
dynamic fsync control
WiFi driver updates
Interactive governor updates - see Tinykernel
Entropy Tweaks
Netfilter updates
New sysfs location for fast charge for broader app compatibility - still compatible with latest incredicontrol
FUSE filesystem support
12/20/2012 JB 4.2 ONLY
add back governors that were removed in 12/15
12/15/2012 JB 4.2 ONLY
enabled UHID support
updated msm_fb for 4.2
12/11/2012 JB ONLY
cpufreq: enable overclocking of 1.15Ghz and 1.19Ghz
numerous interactive and ondemand governor tweaks
cpufreq: send uevent when governor changes
ondemand: boost pulse for JB's powerHAL
10/11/2012 JB ONLY
defconfig: several config changes to fix data usage not working
10/06/2012 JB ONLY
defconfig: enable conservative governor by request
10/03/2012 ICS+JB+GB
defconfig: remove rarely used governors and set max frequency to preventing booting higher than 998mhz
lower default hispeed_freq to 614Mhz
cpufreq: interactive: always limit initial speed bump to hispeed_freq
09/21/2012 ICS+JB+GB
ALL: New Interactive governor
ALL: Built with GCC 4.6 toolchain from Google
GB: interactive governor tweaked for battery
ICS+JB: interactive governor tweaked for butter
JB: genlock patched for JB support
JB: new wifi driver for compatibility with JB ROMs
08/11/2012 ICS+GB
KSM wasn't enabled as it should have been in the last build - fixed that - also nothing needs to be done to enable it on GB as it's on by default
08/10/2012 ICS ONLY
fixed data usage features for ICS
added mamarley's fastcharge USB patch to enable fastcharge without needing to unplug the charger
enabled KSM (Kernel Samepage Merging) - still need to enable in CM settings
08/10/2012 ICS+GB
added mamarley's fastcharge USB patch to enable fastcharge without needing to unplug the charger
07/07/2012 ICS ONLY
Merged in multiple driver updates to support HWA (chad0989)
Updated adreno kernel drivers to latest
added xtqta_guid - for ICS' data usage feature, also seems to have resolved stability issues
Added lazy CPU governor
Added back intellidemand
03/21/2012 ICS+GB
Added lazy CPU governor
02/26/2012 ICS+GB
Smartassv2 default governor for sure - doesn't override ramdisk settings though
new governor lagfree - balance between ondemand and interactive
new I/O scheduler SIO
tweaked deadline for better performance
removed CFQ/BFQ schedulers and smartass, conservative, and interactive govenors (still have interactiveX and smartassv2)
01/03/2012 ICS+GB
Tweak intellidemand and interactiveX governors for battery life
Add ZRAM and swap support and add script to toggle ZRAM - see bottom of OP for more info
SmartassV2 default governor again
12/26/2011 ICS+GB
Added faux123's intellidemand governor (thanks faux123!)
Added imoseyon's interactiveX governor (thanks imoseyon!)
Works on GB and ICS currently
interactiveX may not play nicely with ICS so intellidemand is default
Conservative is disabled, let me know if you need it back
12/08/2011 (Chad) ICS+GB
Added ICS support (limited)
11/27/2011 GB
Use ondemand, performance, and conservative governors from the Android Linux 3.0 kernel
Set minimum voltage back to 800 as the voltages will not go below 800 anyway. Anything lower is placebo effect. This is a hardware limitation.
11/14/2011 GB
Update OJ driver
BT fix for newer CM nightlies
WIFI module updates
Update and re-add BFQ scheduler as well as disable deadline
Ondemand is back
Fixes/Tweaks to ondemand and interactive
10/08/2011 GB
Adjusted smartassV2 parameters for 1GHz processor (originally for 500Mhz device)
10/01/2011 GB
Set smartassv2 to default governor
09/30/2011 GB
Added SmartassV2 governor
Current CPU governors as of the latest release:
SmartassV2
Ondemand
Interactive
Lagfree
Lazy
Technical doc on CPU governors (most of the ones in this kernel anyway)
https://raw.github.com/tiny4579/android_kernel_common/android-2.6.38-incredikernel/Documentation/cpu-freq/governors.txt
Update: 11/30/13 - removed link to incredikernel.com as the site has no content - fully on goo.im now
http://goo.im/devs/tiny4579/inc/kernels
Kernel Source
https://github.com/tiny4579/android_kernel_common
Here are a couple notes if you want to build this kernel from source:
Jellybean kernel branch is android-2.6.38-incredikernel-jb.
ICS kernel branch is android-2.6.38-incredikernel-ics.
Gingerbread kernel branch is android-2.6.38-incredikernel.
The config for the kernel is in arch/arm/configs/incrediblec-incredikernel_defconfig. If you want to switch branches I recommend doing a make incrediblec-incredikernel_defconfig after checking out that branch.
I use the GCC 4.4.3 toolchain for this kernel due to GCC 4.6 causing build issues.
Frequently Asked Questions
Some key differences between smartass and smartassv2 so users can decide which they prefer and learn a bit more about the differences:
Smartass
1. Screen off profile built in maxed at 384mhz.
2. Wakeup frequency is 998mhz.
3. Min screen on is 245mhz.
4. Improved by Chad to run better on our devices.
5. Purely load based, no ideal value.
Smartassv2
1. This is the same exact governor in Erasmux's Nexus One kernel (github.com/erasmux/n1-kernel)
2. Ideal wake frequency is 768 (also default that can be changed).
3. Screen on min is actually 128mhz).
4. No screen off profile.
5. Ideal sleep frequency 245mhz.
6. Improved upon from erasmux's version, not Chad's.
Basically the smartassv2 ideal wake frequency allows the phone to favor a certain speed to attempt to save battery life. It can still go above ideal wake and below ideal sleep so there's no caps on max and min while awake or sleep.
Some tips/info on various governors:
Smartass/smartassv2/interactive:
Use 128 min so the governor can scale as it needs to. Max speed I'd recommend at least 768Mhz.
Ondemand:
Try 128 min and if it lags use 245 min. Max speed I'd recommend at least 768Mhz.
Performance:
Only recommended for benchmarks but speed will always run at max.
InteractiveX:
Same as interactive except it has an auto screen off set to the min. Ideal with 245 min in setcpu but try 128 for battery life but it you have wake lag then set to 245.
Intellidemand:
Based on ondemand with a built in screen off. Any speed settings should be fine.
Interactive:
Some new features with this one. Starting with 9/21/12 release I am using the interactive kernel from Google which features a new kernel option called input_boost.
It is off by default but can be enabled by writing a 1 to /sys/devices/system/cpu/cpufreq/interactive/input_boost. Also there is another parameter for interactive called hispeed_freq in the same location. The hispeed_freq is where the governor jumps to first. Hispeed_freq by default in 10/3/12 is 614400 to help save battery. In the older interactive governor there was a maxspeed freq which meant the governor was a bit jumpier to the max speed. This should be a good blend of performance and battery.
Lagfree:
Based on ondemand but with a softer CPU scaling which should help with battery life. It also seems to be very responsive (starting with 2/26)
Lazy:
Based on ondemand as well (Ezekeel is the developer of this governor). I cannot explain this too well but its apparent behavior seems to be to switch between low and high frequencies pretty evenly.
A note from Ezekeel on this governor:
"Thus I took the ondemand governor and implemented an additional parameter 'min_timeinstate' defining a minimum time the CPU will stay in a certain frequency state before it will be allowed to switch frequencies again. This way one can have a fine grained polling by setting the sampling_rate to a low value without running into problems with these fast frequency changes.
I did some extensive testing with a sampling_rate of 10000, min_timeinstate of 40000 and up_threshold of 90 and FLAC, mp3 and video playback all seem to work flawlessly. So it seems the root of the problem was indeed that the CPU does not handle fast frequency changes well.
I tested several apps and games and so far I have not found anything that this governor cannot handle. Thus I dare to say that it seems to be the superior choice over ondemand."
ZRAM, what is it and how to I add it? (starting officially with 12/31/11)
If you are familiar with swap space in linux or virtual memory in Windows it is a similar concept. Except instead of using the hard drive as swap space it compresses swap space in RAM for faster access times than conventional swap. This will also wear out our storage memory less than typical swapping.
Enable ZRAM is simple thanks to a script built by imoseyon which is provided in the kernel zip file. To enable, use adb shell or download a terminal app and run zram enable. This will persist across reboots (if init.d is setup in your ROM) so if you don't want it anymore run zram disable and it will remove the bootscript and deactivate it.
You need to have root privileges to enable/disable zram. Run the su command in terminal emulator to request root.
I was wondering when lazy was gonna make it's way to aosp...
Sent from my ADR6300 using xda premium
OMG_VTEC said:
I was wondering when lazy was gonna make it's way to aosp...
Sent from my ADR6300 using xda premium
Click to expand...
Click to collapse
The name of the new governor says it all....
You just answered your own question. I took my own sweet time releasing it. It was built like 2 weeks ago. I was being lazy.
tiny4579 said:
Scripts/Mods if I think of something...
Click to expand...
Click to collapse
Tiny, this new thread is great, as is the work you and Chad have done on these kernels. Keep up the great work. Thank you.
jlokos said:
Tiny, this new thread is great, as is the work you and Chad have done on these kernels. Keep up the great work. Thank you.
Click to expand...
Click to collapse
Yeah, the old way was sloppy. Tired of it. I think this thread is cleaner than the sense one and it took me less time to write it.
To help out users (and document the probable future deviation), how about adding a tag to each kernel stating whether it works with froyo (which I believe is none), GB, ICS, or a multiple (which is only the last couple or so, I think).
Great work, by the way.
PonsAsinorem said:
To help out users (and document the probable future deviation), how about adding a tag to each kernel stating whether it works with froyo (which I believe is none), GB, ICS, or a multiple (which is only the last couple or so, I think).
Great work, by the way.
Click to expand...
Click to collapse
Done. 10char
Nice.....great work to you and Chad. Thanks.
Sent from my ADR6300 using Tapatalk
Thanks for the thread tiny, I was wondering what the benefits of the lazy governor were
I'm running my CPU at 128/806 Mhz with Lazy and it's been nice and smooth all day. Battery life has been as good or better than SA2 for me.
It also seemed to drop my ping time and increase the throughput in SpeedTest. I was getting really discouraged with ICS and >400ms ping times but I'm attributing the Lazy governor with right around 100ms ping and smoother data rates. When I switch back to the SA2 governor that I've been running for months data gets choppy again. The system itself seems smooth enough with SA2 but data has been very choppy.
Thank you to all you great developers for all your time, effort, and hard work. We really do appreciate it.
azradiohead said:
I'm running my CPU at 128/806 Mhz with Lazy and it's been nice and smooth all day. Battery life has been as good or better than SA2 for me.
It also seemed to drop my ping time and increase the throughput in SpeedTest. I was getting really discouraged with ICS and >400ms ping times but I'm attributing the Lazy governor with right around 100ms ping and smoother data rates. When I switch back to the SA2 governor that I've been running for months data gets choppy again. The system itself seems smooth enough with SA2 but data has been very choppy.
Thank you to all you great developers for all your time, effort, and hard work. We really do appreciate it.
Click to expand...
Click to collapse
The ROM/kernel/governor have no impact on data signal or speed so what you're seeing is coincidental. Network speed varies on so many factors outside of the control of the ROM or kernel. I'm glad to hear you like the new kernel and the lazy governor. I'm a fan of the dev of the lazy governor's work and run his kernel on my nexus.
My concern is that others will assume it will improve network performance and be disappointed when it doesn't.
Thank you for your compliments!
I just want to make sure I clarified this matter.
chocolate8175 said:
Thanks for the thread tiny, I was wondering what the benefits of the lazy governor were
Click to expand...
Click to collapse
I was looking around for something good that would make sense but I couldn't find anything so far.
Basically I added this governor on a whim. So far it seems to like lower frequencies even more than smartassv2 without too much sacrifice on speed. It might have better battery life. It seems smooth on Nil's Business Sense 3.5 though.
Interesting post here on smartassv2 from the developer of the lazy governor:
User:
and smartassV2 too but let him fix find the cause of the reboots before
Dev:
I will not integrate any new stuff until I have the cause for reboot problems tracked down. I will look into lulzactive, but I definitely will not include smartass since it is an inefficient governor.
Not sure why he said it was inefficient but could see no post about it.
Needless to say, I like lazy and lagfree so far. Give lazy and lagfree a try for a week and see what you think.
azradiohead said:
I'm running my CPU at 128/806 Mhz with Lazy and it's been nice and smooth all day. Battery life has been as good or better than SA2 for me.
It also seemed to drop my ping time and increase the throughput in SpeedTest. I was getting really discouraged with ICS and >400ms ping times but I'm attributing the Lazy governor with right around 100ms ping and smoother data rates. When I switch back to the SA2 governor that I've been running for months data gets choppy again. The system itself seems smooth enough with SA2 but data has been very choppy.
Thank you to all you great developers for all your time, effort, and hard work. We really do appreciate it.
Click to expand...
Click to collapse
may be placibo effect but I have noticed this too and confirmed with speedtest.
Sent from my incredible incredible.
RebelShadow said:
may be placibo effect but I have noticed this too and confirmed with speedtest.
Sent from my incredible incredible.
Click to expand...
Click to collapse
How does it fare with ondemand or lagfree? I still think its placebo. I can't test on my phone as I don't have data on the incredible.
Sent from my Galaxy Nexus using Tapatalk
Running GB and just installed the new Incredikernel, I saw no appreciable difference with data usage on Lazy, Lagfree, SAV2, Ondemand. Depending on your wireless signal, just moving your body by even a few inches could have an impact on data speeds (high frequency shadowing of transmission waves). The ping, might have some more sway by the CPU of the device if the program doesn't get as much processor in when communicating with the server, but not in the order of milliseconds (would be my though).
tiny4579 said:
I was looking around for something good that would make sense but I couldn't find anything so far.
Basically I added this governor on a whim. So far it seems to like lower frequencies even more than smartassv2 without too much sacrifice on speed. It might have better battery life. It seems smooth on Nil's Business Sense 3.5 though.
Interesting post here on smartassv2 from the developer of the lazy governor:
User:
and smartassV2 too but let him fix find the cause of the reboots before
Dev:
I will not integrate any new stuff until I have the cause for reboot problems tracked down. I will look into lulzactive, but I definitely will not include smartass since it is an inefficient governor.
Not sure why he said it was inefficient but could see no post about it.
Needless to say, I like lazy and lagfree so far. Give lazy and lagfree a try for a week and see what you think.
Click to expand...
Click to collapse
I'm using your latest GB kernel with the lazy governor on Warm TwoPointThree 3.5 rom. It is very smooth with very good battery life (undervolted).
jlokos said:
I'm using your latest GB kernel with the lazy governor on Warm TwoPointThree 3.5 rom. It is very smooth with very good battery life (undervolted).
Click to expand...
Click to collapse
Better than SAV2? I can't really comment myself but I like it so far.
Also, try to keep Sense kernel talk in the sense thread and aosp kernel talk in the AOSP thread. It makes tracking easier. But I also brought up the comment in this thread so it makes sense why you posted here.
tiny4579 said:
Better than SAV2? I can't really comment myself but I like it so far.
Also, try to keep Sense kernel talk in the sense thread and aosp kernel talk in the AOSP thread. It makes tracking easier. But I also brought up the comment in this thread so it makes sense why you posted here.
Click to expand...
Click to collapse
I have used both the GB and AOSP versions of the lazy governor. The GB version appears to make the Sense 3.5 rom smoother. As far as battery life, I haven't been able to tell if its better than SA2 since I have a much longer history with SA2. In any event, thanks for adding this governor to both versions (as I switch between the new ICS roms and Sense 3.5); it's another great choice for us to experiment with.
Could you make lulzactive possible tiny?
Sent from my DROIDX using Tapatalk
I'm currently on Zeus v7.01 with dianaV2.3+ kernel and I'm wondering what is the best combination of Governor/IO Scheduler/Voltage to obtain the most best battery life.
I'm not searching for best performance honestly, but instead a longer lasting phone. lol
I rarely play games, and smoothness is not a must for me (Nemus Launcher does the job, smoothest launcher ever!)
My current settings are:
CPU Frequency Tweaks
Max freq: 1000
Min freq: 100
DVFS enabled on boot
Voltage Tweak: -5
Governor: ondemandX
Io Scheduler: sio (Simple I/O)
You could try undervolting your phone,because i like performance and smoothness,my setup is like that:
Max CPU frequency:1300Mhz
Min CPU frequency:300Mhz
Governor:Smartassv2
I/O scheduler:deadline.
Sorry for useless stuff,but i like to share
My main agenda is to help, not gain thanks.
UniversalSS said:
You could try undervolting your phone,because i like performance and smoothness,my setup is like that:
Max CPU frequency:1300Mhz
Min CPU frequency:300Mhz
Governor:Smartassv2
I/O scheduler:deadline.
Sorry for useless stuff,but i like to share
My main agenda is to help, not gain thanks.
Click to expand...
Click to collapse
No no it's nice to share your experience!!
Might help others..
Hmm my phone is already UV... -5, if i decrease further wouldn't it be too low to cause instability?
And about IO Scheduler, i don't quite fully understand it.. which one drain least battery?
i am using 100-800 smartass2 sio and -7V without any problems.
Hi,
I'm using Co-Core 8.2 and I want to test One Power Guard to improve my battery life.
But I don't have any idea about which CPU governor and I/O scheduler to choose.
Could someone tell me which combination provides the best balance between power-save and performance?
I'm on Jelly Bean 4.1.2
NB. Cocafe recommends PegasusQ as CPU governor and either SIO/ROW for I/O scheduler but I would like to get some feedback from people already using One Power Guard.
Thanks in advance
luisblop said:
Hi,
I'm using Co-Core 8.2 and I want to test One Power Guard to improve my battery life.
But I don't have any idea about which CPU governor and I/O scheduler to choose.
Could someone tell me which combination provides the best balance between power-save and performance?
I'm on Jelly Bean 4.1.2
NB. Cocafe recommends PegasusQ as CPU governor and either SIO/ROW for I/O scheduler but I would like to get some feedback from people already using One Power Guard.
Thanks in advance
Click to expand...
Click to collapse
Pegasus and sioplus
OR
Hotplug and sioplus
DaRkRhiNe said:
Pegasus and sioplus
OR
Hotplug and sioplus
Click to expand...
Click to collapse
Thanks for the answer. I will give a try with Pegasus
However I noticed that sioplus is not available on One Power Guard settings. Only row and sio.
Is sioplus available in Co-core 8.2?
These apps like this just drains your battery. If you want play with CPU, download a CPU controller app. (like SetCPU) and install CoCore 9.0 which is newest version.
When you don't use phone ; 600 MHz Max & HotPlug
When you don't use phone V2 ; 600 MHz Max & Ondemand & deeper sleep status
When you lock phone, don't decrease speed (too much) because it will use whole CPU if it needs ; 800 MHz Max & Ondemand Q/Lulzactive Q/Pegasus Q
When using ; 1000 MHz Max & Ondemand/Interactive/Lulzactive Q/Pegasus Q
When you get mad and crazy about performance, lock the min to max; 1000 MHz min and max & Ondemand & SmartAss (still exists or not I don't know)
If you increase minimum speed it will keep it. So I suggest always keep min to 200MHz. (if exists 0 MHz I don't remember it too)
Edit: and don't go deeper sleep if you use hot plugger governors like Hotplug, Pegasus, Lulzactive Q
FYI
http://forum.xda-developers.com/showthread.php?t=2312491
Powered by CM11
Thanks guys,
I will compare the battery draining with One Power Guard just to give it a try.
If I don't notice any improvement then I will tweak with SetCPU
King ov Hell said:
Edit: and don't go deeper sleep if you use hot plugger governors like Hotplug, Pegasus, Lulzactive Q
Click to expand...
Click to collapse
Hi again,
What exactly do you mean wit "deeper sleep"?
Is that an option or when the display is off after several minutes?
Sorry for my ignorance
luisblop said:
Hi again,
What exactly do you mean wit "deeper sleep"?
Is that an option or when the display is off after several minutes?
Sorry for my ignorance
Click to expand...
Click to collapse
Go to the CoCore's thread you'll see. It's deep sleep level which can increase your battery life when you don't use the device. It's not about using, it's about when it's stand-by.
Ok
After one day even if One Power Guard is a nice app I prefer to switch governor depending on the display status. So I was thinking about using tasker (instead setCPU) which is already running on my phone and this way not adding more background processes.
I set a couple of task using the CPU control from tasker. It is working fine switching governors but I noticed that the frequencies (min and max) don't change. I tried even with shell script and still I don't get to set the max frequency. Then I prefer to make you a couple of questiosn:
-In tasker when using the CPU control. If I change governor. Should it be set in both CPUs (0 and 1) or only in a single one? In my case i set the governor in both.
-I use the terminal to check the current governor and max frequency (for instance for the cpu0)
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governorcat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
As said above the governor is succesfully changed but that's not the case for the frequency. Then I tried to run a shell script to change the max frequency as follows:
echo #frequency > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
But it seems not working neither. So I wonder if I'm doing something wrong.
NB. By the way I'm happy using the governor hotplug while not using my phone (thanks for the advice). In normal use I set pegasusq with sio and seems working great.
Hello guys.
I'm currently on superior os running Android 9 pie
I need the battery to last as long as possible... SOME performance sacrifices can be made.
I'm currently using the Lionfish governor to increase battery life
Here's a list of governors I have available on this tomorrow ... (Not to keen on flashing a custom kernel, but I will hear you out non the less):
Lionfish
ElementalX
Impulse
Alucard
Interactive
Despair
conservative
On demand
Userspace
Powersave
bioshock
Lionheart
Performance
I use kernel aduitor to change tweek the kernel
Any and all kinds of tricks and tips, even if it's not governor or kernel related are also are appreciated!
Download L speed and use the battery profiles
how much screen on time you are getting?