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[MIUI Device Team][Custom Kernel] MIUI Nexus 5 Silean Kernel v1.8.1 (20.07.2014)

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22:03, Jun-01-2014 | From PC
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Go to reply no.
This post was edited by aatjitra at 21:28, Jul-20-2014

Hi all,

Let me introduce Silean Kernel Nexus 5 for MIUI.

What is Silean?
It is SIlent and LEAN.

Silent means this kernel has reduced kernel spam/log as much as possible which is not usable for common user. By reducing this, hopefully the kernel function will be smoother and more efficient. Eventually it may save some battery juice.

Lean means this kernel only carries development which is tested by me and it has a very positive impact in benefits. Patch/development for experience will not be implemented in this kernel to avoid a negative impact.

The main goal of this kernel is for daily usage so stability is the most important factor by optimizing and reducing all unecessary code/function. I will try to keep updating this kernel to make it better regularly (depending my free time after office hour)

SiLean Kernel Download Link:
Download the latest version 1.8.1 => https://app.box.com/s/cshl5h3sg5wdcs3vgss9

How to flash:
1. Copy downloaded file into phone internal memory
2. Reboot to TWRP/CWM Recovery
3. Flash .zip file
4. Done

Features:
1. Compiled with Linaro Toolchain optimized for ARM A-15
2. Optimized for KRAIT and ARM A-15 for CPU and GPU build
3. Disabled almost all kernel log which is not useful for user
4. More relax Temperature Throttle
5. Patch to latest OnDemand CPU Governor
6. ROW Scheduler as default
7. WESTWOOD TCP as default
8. Support KEXEC HARDBOOT
9. Support lower brightness level (level 1)
10. Patch white-point. White now are whiter.
11. Build with ramdisk from 4.5.3012. Patch to latest Interactive CPU Governor
13. Support Voltage Control for SnapDragon 800 chip
14. Color Control for Nexus 5
15. Support for init.d scripts
16. Backlight dimmer
17. SIO and FIOPS Scheduler which is suitable for flash memory based devices such as mobile.
18. Reduced kernel logs and memory reserved for kernel logs.

Revert to MIUI stock kernel:
1. Download this => https://app.box.com/s/i8f7s3rmkb0pdchvl66r
2. Flash via CWM/TWRP
3. Done

Source : https://github.com/aatjitra/hammerhead

Changelog:

Version 1.8.1 ->
- Disable Intelli-thermal
- Introducing Intelli-Active CPU Governor

Version 1.8.0 ->

- Introducing Intelli-thermal CPU throttle

Version 1.7.0 ->

- New ramdisk from MIUI 4.7.11
- new CPU governor: Intellidemand

Version 1.6.0 ->
- Update kernel powersuspend to version 1.5
- Faux Sound (can be activated by faux sound control app)
- GPU overclock to 533 MHz
- Remove unused o/c CPU frequency
- Set max/min cpu policy (experimental without having cpu module separately)
- Updated with ramdisk from MIUI 4.7.4

Version 1.5.2 ->
- Fix LED flash timing calculation

Version 1.5.1 ->
- Reduce LED flash current to reduce over expose on picture under low light

Version 1.5.0 ->
- Rebase kernel source code from Google
- Gamma Control

- Overclock capability to 2.5GHz
- FIOPS as default since SIO is too slow for sequential read and write
- Fast charge capability
- Kernel Kexec-Hardboot
- GPU Simple Governor
- Asynchronous FSync

Version 1.4.0 ->
- Kernel NEON support
- Sweep 2 Wake, Sweep 2 Sleep and Double Tap 2 Wake from original code from showp-1984 forked by faux123
- Ramdisk from MIUI V5 version 4.6.6
- Patch all CPU governor to the latest
- FIOPS Scheduler and SIO Scheduler (default: SIO)

Version 1.3.0 ->
- Support init.d script.
- Support voltage control for SnapDragon 800 for those who want to experiment with undervolt.
- Patch Interactive to the latest and set as default.
- Release some memory claimed by Android Logger as we don't need it to reserve so much memory.
- Memory Utilizations for MSM8960 Pro

Version 1.2.0 ->
- Reduce GPU to 200 MHz
- Backlight Dimmer from FranciscoFranco
- Fix charging EOC error that cause charger cut off too early
- Fix some memory leak
- Reduce wakelock on bcmdhd
- Latest F2FS support
- Color Control Driver for Nexus 5

Version 1.1.0 ->
- More kernel log disabled

- Additional SIO and FIOPS scheduler
- Patch ROW scheduler
- Optimalization flag for GPU driver
- Using glibc version for lib/memcopy and lib/string which is more efficient and faster
- Implement smarter wake-affine logic
- Enable MC Power Saving
- Enable ARCH Power
- Detail can be seen in my github above


Version 1.0.0 -> Initial creation


Credits to:
- Google
- MIUI
- christopher83 (Linaro CC)
- flar2 (ElementalX)
- myfluxi
- franciscofranco (Franco Kernel)
- faux123 (Faux Kernel)
- whoever forgot to mentioned



































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 Author| 21:29, Jul-20-2014 | From PC
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All download link fixed....

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17:31, Jun-02-2014 | From PC
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very nice share
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18:44, Jun-02-2014 | From PC
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Thanks for sharing Kernel

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20:03, Jun-02-2014 | From PC
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nice share

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 Author| 22:09, Jun-02-2014 | From PC
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Version 1.1.0 goes online...

Some additional feature added...

Not much from previous version 1.0.0 as I was busy today in the office and I was very tired now... Sorry for that...

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07:21, Jun-03-2014 | From PC
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Sweet. Let the development begin for MIUI. :)

Keep it up, nice work. ~

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07:41, Jun-03-2014 | Via mobile
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Wainting to see how this will evolve

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17:18, Jun-03-2014 | From PC
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Great man..
Kernel development for N5 MIUI..

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 Author| 21:52, Jun-03-2014 | From PC
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This post was edited by aatjitra at 22:04, Jun-03-2014

I updated to version 1.2.0 with some more bug fixes and improvements... Plus Color Control for Nexus 5...

I also reduced the GPU to the lowest frequency from the matrix table. Originally it runs on 320MHz and it scales up to 450 MHz according to the load...
Now during idle and low load, it runs on 200 MHz to save battery life and it will scales up to 450 MHz according to the load... I didn't find any lags as per my usage including playing some games so far while setting it like this...

If you find any noticeable lags, please do let me know...

Thanks.


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 Author| 09:27, Jun-04-2014 | From PC
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I have checked the Google source code after 4.4.3 released yesterday.

So far I did not see any update on the source code since November 2013 or maybe they have not update it yet.

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