Develop Bugs

[KERNEL] Leankernel: Minimalistic Kernel \\ 3.0.93+ \\ 8.1exp2 - 4.3 PGM\\6.9.2013

This is a minimalistic Galaxy Nexus kernel. Imoseyon philosophy is to keep the kernel as lean and stable as possible, at the same time to keep the kernel as modern and close to latest mainstream linux as possible. You will see that my kernels will lack some of the bells and whistles from other kernels.
DOWNLOAD
JB 4.3: [ stable builds | exp builds ] [ change log | exp changes ]
JB 4.2.x: [ stable builds | exp builds ] [ change log ]
Terminal Emulator not finding my scripts? Read this post.
FEATURES
Patched to latest in Linux 3.0.x branch.
All unnecessary kernel components removed to make kernel lean and fast!
OC to 1.65ghz. Boot speed is maxed at 1.2ghz within kernel (in addition to ramdisk) for stability.
User voltage control
InteractiveX V2 (screen-off hotplug of cpu1) added. Select it using setcpu if you want to use it.
Ramdisk tweaks (sysctl, vm, filesystem speed, etc.)
SWAP & zram (next generation compcache) support. Run "zram enable" in terminal.
init.d support in ramdisk.
lk.conf for basic kernel configuration.
HotplugX governor (Hotplug optimized and modified for screen-off suspend).
wakelock tweaks for wlan and lte modem
lkflash - script to flash latest versions of leanKernel from Terminal (type "su" without quotes, hit enter, then type "lkflash" without quotes and then hit enter)
checkv - voltage checking script (for custom undervolting) - detailed at bottom of this post.
checkt - script that displays 1) your current temp, 2) # of times you were throttled due to temp "recently", 3) CPU trim type, and 4) CPU silicon type, etc. (sample output)
Fast USB charge (by chad0982) and "ffc" toggle script by me. (Open terminal, and type "ffc" without quotes then enter)
ColorControl from both CM9 and Ezekeel (compatible with all ROMs). Helpful posts: 1and 2.
TempControl - sysfs interface to control the CPU temp threshold. Read these two posts: 1 and 2.
Variable GPU OC - sysfs interface to select GPU max speed between 307MHz (stock), 384MHz and 512Mhz. The changes take effect immediately. Check FAQ for more info and how to use it.
Custom SR Tuning - override kernel default minimum voltage for SR calibration. More info here and here. V2
SoundControl
Gamma Control
ROW scheduler v4
CHANGE LOG JB 4.3
CHANGE LOG JB 4.2
DIRECTIONS
Uh.... flash the zip in clockworkmod.
FAQ
SOURCE
github
Thanks to forum member maddler for providing file hosting: http://www.host4droid.com/
Donate to Imoseyon favorite charity, or donate to Imoseyon.

Nice bro. I like lean and just working kernels. Will try and report when i'll have time. Thanx
Sent from my Galaxy Nexus using xda premium

Nice to see the Kernel here on XDA!

12-12-12?

I've been sticking with LeanKernel ever since I tried it out on ICS. Good to see Imo's work being brought to the attention of users outside of Rootz.

It's here!!!!!!!!!! :-O!!!!
Sent from my Galaxy Nexus using xda premium

Working well for for me on 4.2. No issues/complaints so far.
2 hrs 10 min of screen on time.

I am surprised that this thread is unpopular. Great kernel. Smooth and battery friendly.
Sent from my Galaxy Nexus using xda premium

mariosraptor said:
I am surprised that this thread is unpopular. Great kernel. Smooth and battery friendly.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
It's unpopular on xda only, u should visit the rootswiki forum and u will find out how popular is this kernel
Sent from my Galaxy Nexus using Tapatalk 2

Yeah. The main thread is on RootzWiki. It is a very popular kernel there. I have had people tell me to try all the other kernels because they're better. I've tried them all and I keep using this one. Its light,runs smooth,and helps battery life. What more could you want .

scarmon25 said:
Yeah. The main thread is on RootzWiki. It is a very popular kernel there. I have had people tell me to try all the other kernels because they're better. I've tried them all and I keep using this one. Its light,runs smooth,and helps battery life. What more could you want .
Click to expand...
Click to collapse
The most stable kernel :good: !!

Updated Minimalistic Kernel 5.2

Changelog?

Where is the sysfs interface?
Edit: Found it, but does anyone have a link for the newest lean kernel tweaks script by Jake? His download link is down.
Sent from my Galaxy Nexus

What a awesome kernel!

I love it.
Sent from my Galaxy Nexus using xda app-developers app

My Everyday kernel
LeanKernel is my every day kernel i used and use now with every ROM i tried on GNex.

My last two days of using the kernel and its great... I never gave any comments for any thread in favor of it but this is first one ) even franco or other kernels.. They have some hot stuff to offer but at the cost many things, specially battery..this one is optimized for battery specifically...
Sent from my Galaxy Nexus using xda app-developers app

ibraheeemz said:
My last two days of using the kernel and its great... I never gave any comments for any thread in favor of it but this is first one ) even franco or other kernels.. They have some hot stuff to offer but at the cost many things, specially battery..this one is optimized for battery specifically...
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
+1

5.2 seems even more battery friendly than 5.1.1.
I will report after full depletion.
Sent from my Galaxy Nexus using xda premium

recommended options for kernel tools

Anyone have some recommendations for a toolbox that edits settings for kernel like CPU settings, scheduler, color tuning, fsync settings, sdcaed read ahead and so forth...
Only one I've used had been trickster mod
Thanks

which kernel do you have?

The trinity kernel has an app called trinity kernel toolbox. All the options you listed can be tweaked there. Trickster mod has an app as well to change these values.
Sent from my Galaxy Nexus using xda premium

Trickster Mod is free and very very nice
Sent from my Galaxy Nexus using xda app-developers app

scram99 said:
Trickster Mod is free and very very nice
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
That's the one I use.
Sent from my Galaxy Nexus using xda premium

Crostantin said:
which kernel do you have?
Click to expand...
Click to collapse
http://rootzwiki.com/topic/25969-romjb-421-xenonhd-rc3-081212/
Using that ROM
Seems its AOSP built stock ROM
Android addiction said:
The trinity kernel has an app called trinity kernel toolbox. All the options you listed can be tweaked there. Trickster mod has an app as well to change these values.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thank you! I've been using Trickster and seems its starting to look like the best one
scram99 said:
Trickster Mod is free and very very nice
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
Thank you, seems trickster is popular now
pr0xyw0rm said:
That's the one I use.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thank you for posting too! Appreciate all this feedback!
Looks like I'll go with Trickster mod, I had a feeling it was pretty good I just wanted to see if the community had a better idea. Thank you very much for the input so far guys!

I m not sure that the Xenon Kernel is completely tunable with Trickster...maybe only the frequencies...
For a complete kernel optimizzation you need something like FrancoKernel, LeanKernel or Trinity. AND then trickster will be very useful...
However you can find my kerenl setting on signature if you want

I use Pimp My ROM, which is free on the play store. I use it with ZenSeries kernel and all seem well.
Pimp My ROM:
https://play.google.com/store/apps/details?id=com.androguide.pimp.my.rom&feature=nav_result#?t=W251bGwsMSwyLDNd

aliaksei said:
I use Pimp My ROM, which is free on the play store. I use it with ZenSeries kernel and all seem well.
Pimp My ROM:
https://play.google.com/store/apps/details?id=com.androguide.pimp.my.rom&feature=nav_result#?t=W251bGwsMSwyLDNd
Click to expand...
Click to collapse
Yes I know...I thing is a goo apk. I prefer make all the scripts by my own, but at the end is the same thing. These are RAM, SDCARD, DATA, etc ... optimization. Not for frequencies voltages and governor.

Crostantin said:
I m not sure that the Xenon Kernel is completely tunable with Trickster...maybe only the frequencies...
For a complete kernel optimizzation you need something like FrancoKernel, LeanKernel or Trinity. AND then trickster will be very useful...
However you can find my kerenl setting on signature if you want
Click to expand...
Click to collapse
I noticed that after installing Trickster that I don't have all the options I did using another kernel that was much more tweaked... You're definitely right when you say the Xenon kernel isn't completely tunable, a lot less options!
aliaksei said:
I use Pimp My ROM, which is free on the play store. I use it with ZenSeries kernel and all seem well.
Pimp My ROM:
https://play.google.com/store/apps/details?id=com.androguide.pimp.my.rom&feature=nav_result#?t=W251bGwsMSwyLDNd
Click to expand...
Click to collapse
I'll definitely look into both, but as Crostanin mentioned it seems to be more script and build.prop tweaking - but without a doubt I am interested in what that has to offer based off a quick glance! Thanks

Yeah sounds like trinity is a good one for you . I should have used larger images haha sorry.
Sent from my Galaxy Nexus using xda premium

pimp my rom does have cpu and voltage control. i personally use it for other than those, and trickster mod with pro key for kernel adjustments. i really like trickster, better than glados and from what i've seen from trinity, i like it better than that too.

Cm 10 kernel

I have been looking for the CM 10 kernel. I just can't seem to find it I need to install it on my mad dogging rom so I can open up the color modifications can someone point me in the right direction please just can't seem to find it.
Sent from my Galaxy Nexus using xda premium

extract the boot.img from the cm rom and flash it via fastboot. another thing, are you sure that cm kernel is compatible with your rom? and cm has its own color control included in its rom, will your color control app be compatible with cm kernel?

simms22 said:
extract the boot.img from the cm rom and flash it via fastboot. another thing, are you sure that cm kernel is compatible with your rom? and cm has its own color control included in its rom, will your color control app be compatible with cm kernel?
Click to expand...
Click to collapse
Well mad dog rom has the color control Advanced Options menu built in and I asked him he said to flash cm 10 kernel do you think I should just flash a different ROM I think the Galaxy Nexus with the advanced color menu really makes the screen pop...

davidstjohn1 said:
Well mad dog rom has the color control Advanced Options menu built in and I asked him he said to flash cm 10 kernel do you think I should just flash a different ROM I think the Galaxy Nexus with the advanced color menu really makes the screen pop...
Click to expand...
Click to collapse
trinity kernel has color control options too, and more vivid default colors. but trinity has its color control implimated differently than cm. its color control is more compatible with other roms than cm.

simms22 said:
trinity kernel has color control options too, and more vivid default colors. but trinity has its color control implimated differently than cm. its color control is more compatible with other roms than cm.
Click to expand...
Click to collapse
That's awesome... I will give it a shot that sounds really good thank you very much for your help I'm going to download it right now. By the way thank you for replying in helping me out I really was trying to find that CM 10 kernel but I couldn't find it.
Sent from my Galaxy Nexus using xda premium

[Q] SlimBean 4.2.2 build 5 Question

Hello All,
I can't seem to find the location on this ROM that allows you to change the governor settings... I swear I've looked everywhere!

i dont use that ROM but just FYI, kernel control features may not be built into it. as a matter of fact, a lot of ROMs dont have any built in kernel setting controls. where you using it before and it had it? saw a user running slimbean this morning with ktoonsez kernel. full control

Probably...
xBeerdroiDx said:
i dont use that ROM but just FYI, kernel control features may not be built into it. as a matter of fact, a lot of ROMs dont have any built in kernel setting controls. where you using it before and it had it? saw a user running slimbean this morning with ktoonsez kernel. full control
Click to expand...
Click to collapse
It's the kernel that came with the ROM, 3.4.41-slim-g846750a. I just read of people talking about changing their governors and wanted to give it a try..

i use (and only use) ktoonsez kt747 kernel with any ROM i am on (tasks latest currently). it comes packaged with an app that allows me to select and make governor and scheduler adjustments as well as tweak many other things in order to improve stability and battery life. highly recommend.

You can enable the developers settings by going into settings>about phone>and tap on build number 6 or 7 times and that will unlock the performance options
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Thanks for all the help guys. I activated the developer options, but there are still no governor settings. I think I'll try flashing the KT rom suggested above.
Sent from my SAMSUNG-SGH-I747 using xda premium

Did u try tapping performance >OK and then the option to change I/o scheduler or the option to change CPU governor and clock speed? It will be there
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

drs1og said:
Did u try tapping performance >OK and then the option to change I/o scheduler or the option to change CPU governor and clock speed? It will be there
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
DOH! There it is! THANKS!!!

I suggest asswax and row, good performance and battery life!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

[Kernel] [CM10 final] honeyx 7up 3.0.x kernel [Silky Smooth & Battery] 03.09.2013

ZOHAN makes your hair...emmm Kernel silky smooth .
Well, since it became popular to add something like " for better battery life" I´m renaming my Kernel into Silky Smooth now
There are 2 versions now. First one is the pure kernel and the secound one with Turbo Boost included. (Credits are going to delta-roh)
Orginal thread: http://forum.xda-developers.com/showthread.php?p=37905307
SGW discussion thread: http://forum.xda-developers.com/showthread.php?t=2400120
Created with stability and battery life in mind. Each modification was tested separately, so everytime I added a tweak or a new feature, I tested the new kernel for a couple of days before adding the next one.
So what it has included:
- UV and OC options
- lowered WiFi voltage
- lowered LCD voltage
- slightly lowered standby / deepsleep voltage
- Battery life eXtender
- Fixed 100% battery notification after charger unplug
- 377MB RAM
- ROW scheduler as default scheduler
- Lulzactive Governor as default governor
- tweaked Lulzactive for battery life and smoothness
- added new frequency - 518MHz
- added new frequency - 633MHz
- added new frequency - 902MHz
- Screen Off frequency set to 518 MHz max. in Lulcactive Governor
- Dynamic Read-Ahead
- Dynamic Dirty Page Writeback
- CK3 tweaks (Credits to Con Kolivas) - adapted by Christopher, hurtsky and me
- LowMemoryKiller management of not killable processes - credits to christopher
- with and without Turbo Boost Mod
- no other compilation tweaks just to make the list longer
The max. Screen Off frequency is the maximum frequency your device can clock to while the screen is turned off. It´s a kind of limitation to lower the consumption.
other suggestions:
- enable KSM
- enable 16bit transparency
- greenify your apps
If you follow these suggestions, your ROM should run absolutely smooth without the need for other tweaks.
To use Battery Life eXtender:
Use RootExplorer and go to: '/sys/class/misc/batterylifeextender'. Change the value in 'charging_limit' for example to 90 (default 100). This will set a limit for the capacity to which the battery will be charged. So in this example the battery will be charged to 90%.
----------------------------------------------------
After flashing the kernel whipe your cache and dalvik cache and fix permissions.
Credits are going to:
- Arco (for his great work and sources)
- educk (for helping me doing the first steps)
- Christopher83 (for his great commits and tweaks)
- ivendor (for his tweaks)
- Ezekeel (for Battery Life eXtender)
- hurtsky (for exchanging experiences)
- and all the other I forgot to mention
-------------------------------- 03.09.2013 ----------------------------------
- updated to 3.0.93
- added frequencies
- added: LowMemoryKiller management of not killable processes
- added: Turbo Boost
Download: CM_10-3.0.93-kernel MD5: A812BA27DD0E4009FD05D8DE93B674F8
Download: CM_10-3.0.93-HoneyX-Turbo MD5: 98035FF98678C963FB157DA9F615ED5B
-------------------------------- 25.07.2013 ----------------------------------
- updated to 3.0.87
- some small fixes
- newer Lulzactive governor
- added Smartassh3 tweaked for 518MHz
- some more tweaks to reduce WIFi consumption
Download: CM_10-3.0.87-7up-kernel MD5: 9D6C9E2647FE5ECACC340D188BEE1531
-------------------------------- First Release ---------------------------------
Download: CM10_honeyx-7up-3.0.83-mini MD5: B40E572F048258FD9092984908BB0D15
Download: CM10_honeyx-7up-3.0.83.zip MD5: 1D9A0C0B906DC0CADC64EEBDD8AC6F79
XDA:DevDB Information
[Kernel] [CM10 final] honeyx 7up 3.0.x kernel [Silky Smooth & Battery] 03.09.2013, a Kernel for the Samsung Galaxy W I8150
Contributors
honeyx, http://forum.xda-developers.com/member.php?u=4410351
Kernel Special Features:
Version Information
Status: Stable
Created 2013-09-24
Last Updated 2013-09-24

honeyx said:
This kernel is a port of the CM9 honeyx 7up kernel. It´s build with Arcos 3.0.83 sources for CM10. There are two versions aviable. The minimalistic and one with all the tweaks listed below. The minimalistic is more close to Arcos kernel. It includes OC/UV options, all the tweaks for battery life, 374MB RAM, the new 518MHz frequency, BLX and Lulzactive governor as default governor with 518MHz screen off frequency. The other one has all the other tweaks included.
Created with stability and battery life in mind. Each modification was tested separately, so everytime I added a tweak or a new feature, I tested the new kernel for a couple of days before adding the next one. This is not the case with this kernel, but these tweaks were already tested in the CM9 kernel.
You will notice my kernels do not offer as much tweaks like other kernels because these are cherry picked to not to affect battery life and stability.
So what it has included:
- added Governors
- UV and OC options
- lowered WiFi voltage
- lowered LCD voltage
- slightly lowered standby / deepsleep voltage
- Battery life eXtender
- Fixed 100% battery notification after charger unplug
- 378MB RAM
- ROW scheduler as default scheduler
- Lulzactive Governor as default governor
- tweaked Lulzactive for battery life and smoothness
- added new frequency - 518MHz
- Screen Off frequency set to 518 MHz max. in Lulcactive Governor
- Dynamic Read-Ahead
- Dynamic Dirty Page Writeback
- Incrased Audio Volume
- new Low Memory Killer for better memory management
- no other compilation tweaks just to make the list longer
I didn´t test this kernel as I´m still using CM9, but made sure the tweaks are ported correctly to this kernel.
The max. Screen Off frequency is the maximum frequency your device can clock to while the screen is turned off. It´s a kind of limitation to lower the consumption.
other suggestions:
- enable KSM
- enable 16bit Dithering
- disable CPU rendering
- greenify your apps
If you follow these suggestions, your ROM should run absolutely smooth without the need for other tweaks.
To use Battery Life eXtender:
Use RootExplorer and go to: '/sys/class/misc/batterylifeextender'. Change the value in 'charging_limit' for example to 90 (default 100). This will set a limit for the capacity to which the battery will be charged. So in this example the battery will be charged to 90%.
----------------------------------------------------
After flashing the kernel whipe your cache and dalvik cache and fix permissions.
Credits are going to:
- Arco (for his great work and sources)
- educk (for helping me doing the first steps)
- Christopher83 (for his great commits and tweaks)
- ivendor (for his tweaks)
- Ezekeel (for Battery Life eXtender)
- hurtsky (for exchanging experiences)
- and all the other I forgot to mention
Download: CM10_honeyx-7up-3.0.83-mini
Download: CM10_honeyx-7up-3.0.83.zip
Click to expand...
Click to collapse
thanksssssssssssssssssssssss:good:

Thanks dude I flashed it and will give feedback...

haha..finally..this is awesome..thx mate..:thumbup::thumbup:
Sent from my GT-I8150 using xda premium

Thanks for the kernel tweaks. But, I want to ask about a difference CM10_honeyx-7up-3.0.83-mini with CM10_honeyx-7up-3.0.83.zip?

so this kernal for cm10 or cm9 xpp hehhehe sorry i cant speak english very well
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mps42 said:
so this kernal for cm10 or cm9 xpp hehhehe sorry i cant speak english very well
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
this is for cm 10
and he took all his tweaks used in his cm 9 kernel and use it in this kernel
I'm using it now and it seem good :good:

Ahmed.ragab said:
this is for cm 10
and he took all his tweaks used in his cm 9 kernel and use it in this kernel
I'm using it now and it seem good :good:
Click to expand...
Click to collapse
aha good which one you used mini or other one ? and is there any audio lag ??
Sent from my GT-I8150 using xda premium

mps42 said:
aha good which one you used mini or other one ? and is there any audio lag ??
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
I'm using the other one and there is no audio lag

Ahmed.ragab said:
I'm using the other one and there is no audio lag
Click to expand...
Click to collapse
i will try it
Sent from my GT-I8150 using xda premium

i tried this kernal when i flashed it and make wipe cache & dalvik cache .. fix permission i got bootloop ! thanks god for making backup before flash .... any idea
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mps42 said:
i tried this kernal when i flashed it and make wipe cache & dalvik cache .. fix permission i got bootloop ! thanks god for making backup before flash .... any idea
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
I'm using it with xperia ui No proplem here !!

Ahmed.ragab said:
I'm using it with xperia ui No proplem here !!
Click to expand...
Click to collapse
me too im using it with xperia ui but i got bootloop but i make a right steps
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mps42 said:
me too im using it with xperia ui but i got bootloop but i make a right steps
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
what kernel u was using before installing it ?

Ahmed.ragab said:
what kernel u was using before installing it ?
Click to expand...
Click to collapse
madridi kernal !
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mps42 said:
madridi kernal !
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
try to go back to stock kernel and flash this kernel over it
i flashed it over stock kernel and there was no problem

Ahmed.ragab said:
try to go back to stock kernel and flash this kernel over it
i flashed it over stock kernel and there was no problem
Click to expand...
Click to collapse
Good Idea. Madridis kernel has also a modified Ramdisk included if I remember correctly, so this could be the reason.
See first if it works with Arcos stock Kernel and then you can try the minimalistic first.

Ahmed.ragab said:
try to go back to stock kernel and flash this kernel over it
i flashed it over stock kernel and there was no problem
Click to expand...
Click to collapse
ok i think madridi make stock kernal which come with cm10 i will flashed it then i will try your kernal is that good ?
honeyx said:
Good Idea. Madridis kernel has also a modified Ramdisk included if I remember correctly, so this could be the reason.
See first if it works with Arcos stock Kernel and then you can try the minimalistic first.
Click to expand...
Click to collapse
Sent from my GT-I8150 using xda premium

mps42 said:
ok i think madridi make stock kernal which come with cm10 i will flashed it then i will try your kernal is that good ?
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
As long madridis stock kernel works for you, mine should work as well.

mps42 said:
i tried this kernal when i flashed it and make wipe cache & dalvik cache .. fix permission i got bootloop ! thanks god for making backup before flash .... any idea
Sent from my GT-I8150 using xda premium
Click to expand...
Click to collapse
Well, I flashed CM10 yesterday to check this. Made a pristine installation by whiping and formating everything and used the phone for a while with Arcos stock kernel. Unfortunally the rom didn´t work as good for me as expected. Sometimes the camera stopped working after the phone lasted for a while in deepsleep, so I had to reboot the phone to get it working again. I´ve spend some time outdoors and made some pics of my wife, but when watching the pics in the gallery some of them were displayed to be black. However in the the file explorer they were displayed correctly, but not in the gallery. When I scrolled further the gallery often also simply closed for no reason. Even whiped the thumbnails and all the data for gallery and mediaserver, but this didn´t help either.
I´m not telling you this to tell you this rom is buggy because I know my device is very anal about roms and kernels, just to show you why one and the same thing might work for one but not for the other. I´m pretty sure CM10 is working perfectly for many others but this seems not to be the case with my device.
So well after comming back home I flashed my custom kernel to it and all went well. Just after testing this I decided to revert back to CM9 for the obvious reasons.
Don´t know why, but my phone obviously loves CM9 so I will stick with it.
But the point is. As long CM10 is working well with Arcos stock Kernel for you, there should be also no problems by flashing my kernel over it.