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[KERNEL][A510/A700][07/30] Z-Kernel Beta

OP Ziyan

3rd April 2014, 10:26 AM   |  #1  
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Welcome to Z-Kernel's thread!

Features
Quote:

- Base kernel fully updated to linux-tegra-nv-3.1 (bug fixes & performance improvements)
- Simplified board codes
- Cleaned up Acer specific code

Changelog
Quote:

r2:
- Restarted kernel development (r1's features not implemented yet)
- Base kernel fully updated to linux-tegra-nv-3.1 (bug fixes & performance improvements)
- Simplified board codes

r1:
- CPU OC to 1.6 ghz by default (should be stable)
- GPU OC support up to 700MHz (default is 520 mhz)
- Overclocked LP core from 500 to 620 mhz
- Custom user voltage control for CPU and Core components such as EMC, GPU, and LP (faux123)
- Dynamic FSYNC
- Optimized KSM
- Optimized ZRAM
- Compiled using latest Linaro toolchain with optimized compiler flags
- Optimized SLUB and use SLUB by default instead of SLAB
- Glibc memcpy and memmove
- Deadline improvements for solid state drives
- Proportional Rate Reduction for TCP
- Tegra 3 variant display (faux123)
- Optimized swahb32 byteswap helper
- Asynchronous I/O latency improved through removal of plug in do_io_submit()
- allow use of an I/O controller's native max block size
- Optimized ARM RWSEM algorithm
- timer: optimize apply_slack()
- Optimized crypto algorithms
- Optimized AES and SHA1 routines
- LowMemoryKiller fixes and improvements
- Lock performance governor to all 4 cores
- Many scheduler improvements and optimizations
- updated bcmdhd driver (wifi)
- over 450 changes committed, so the above list isn't complete

Complete list of changes can be found in the commit log: https://github.com/Ziyann/android_kernel_acer_t30

I'm not responsible if anything bad happens with your device!

This build has been tested on CM11 only, so if you run into something with other ROMs, report it and I will see what I need to change to cooperate with it.

XDA:DevDB Information
Z-Kernel, Kernel for the Acer Iconia A700 and A510

Contributors
Ziyan
Kernel Special Features:

Version Information
Status: Stable
Current Stable Version: R2
Stable Release Date: 2014-07-30

Created 2014-09-23
Last Updated 2014-09-23
Attached Files
File Type: zip z-kernel-r1.zip - [Click for QR Code] (5.83 MB, 239 views)
File Type: zip z-kernel-r2-a510.zip - [Click for QR Code] (4.58 MB, 37 views)
File Type: zip z-kernel-r2-a700.zip - [Click for QR Code] (3.99 MB, 145 views)
Last edited by Ziyan; 30th July 2014 at 10:41 PM.
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3rd April 2014, 10:38 AM   |  #2  
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Nice, if it's working fine, I hope you will also support the A510/A511
3rd April 2014, 02:12 PM   |  #3  
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Quote:
Originally Posted by Shreps

Nice, if it's working fine, I hope you will also support the A510/A511

Of course, I'll see what can I do when I get everything (OC, UV, ...) working here waiting for a tester...
Last edited by Ziyan; 3rd April 2014 at 03:48 PM.
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4th April 2014, 01:02 PM   |  #4  
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it is indeed slow. even when completely debloated plus stripped of "essential" system components that I personally do not use. I will try this right away. will report back within an hour in this post.


@Ziyan
it boots, runs, everything seems standard. not seeing any performance increases though. same ol' 10 to 15 fps is there anything more you wish for me to test with it? I replaced this tab a while ago with galaxy note pro 12.2 so I can't really use it enough to check for random reboots
Last edited by Sterist; 4th April 2014 at 02:31 PM.
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4th April 2014, 03:21 PM   |  #5  
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Quote:
Originally Posted by Sterist

@Ziyan
it boots, runs, everything seems standard. not seeing any performance increases though. same ol' 10 to 15 fps is there anything more you wish for me to test with it? I replaced this tab a while ago with galaxy note pro 12.2 so I can't really use it enough to check for random reboots

Thanks, that's good, it means I can continue improving it. I need to check the kernel periodically after a big bunch of commits, because if something gets broken, it can be hard to find what causes it if from a thousand things I'll push a new version and changelog later today or tomorrow.
4th April 2014, 03:36 PM   |  #6  
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sounds good. quote this post when it's uploaded, it'll send me am email notification and I can get right on it.
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4th April 2014, 08:52 PM   |  #7  
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Quote:
Originally Posted by Sterist

sounds good. quote this post when it's uploaded, it'll send me am email notification and I can get right on it.

Here's a new version. Before testing it, please make some benchmarks with the previous version (mainly 3D), because - if everything works as it should -, the GPU is now working at 520 mhz instead of 416. It should also have CPU overclocking and voltage control support, so please install Trickster Mod, or something like that from Play Store to see if it works (screenshots are welcome). If it works (i'd be a bit surprised lol it was too easy), please run some benchmarks again to see if there's a noticeable difference. I've got 12 pages of commits waiting to be merged, so yeah, if something got broken, I better fix it now
Last edited by Ziyan; 3rd July 2014 at 12:16 PM.
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4th April 2014, 11:56 PM   |  #8  
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Quote:
Originally Posted by Ziyan

Here's a new version. Before testing it, please make some benchmarks with the previous version (mainly 3D), because - if everything works as it should -, the GPU is now working at 520 mhz instead of 416. It should also have CPU overclocking and voltage control support, so please install Trickster Mod, or something like that from Play Store to see if it works (screenshots are welcome). If it works (i'd be a bit surprised lol it was too easy), please run some benchmarks again to see if there's a noticeable difference. I've got 12 pages of commits waiting to be merged, so yeah, if something got broken, I better fix it now

just woke up and leaving for work in 20 minutes. when I get there and settle in (about an hour and 20min from this post) I'll test it

which benchmark though, antutu?
5th April 2014, 12:22 AM   |  #9  
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Quote:
Originally Posted by Sterist

just woke up and leaving for work in 20 minutes. when I get there and settle in (about an hour and 20min from this post) I'll test it

which benchmark though, antutu?

Yeah, antutu will do, just note the invidual points
5th April 2014, 12:28 AM   |  #10  
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Quote:
Originally Posted by Ziyan

Yeah, antutu will do, just note the invidual points

woah woah... I just went to download the second version and the tab was dead from 77% last night, still warm.

there's a wake problem, screen will turn on one time after booting up but only that one time

and a sleep problem, after manually turning the screen off it will not turn back on (and kills battery very quickly!)

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