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N.E.A.K. Gingerbread kernel (v1.x)

Discussion in 'Android Devices' started by ironass, Dec 26, 2011.

  1. ironass

    ironass Extreme Android User
    Thread Starter

    N.E.A.K. kernel v1.1 is now available for the Samsung Galaxy SII (International) version and only for Samsung based ROM's.

    - Based on sammy update3 sources, updated to 2.6.35.14 (without hiding the OS bug!)
    - CWM Recovery 5.0.2.7 NEAK Modded
    - Governors: Ondemand, Lulzactive(default), Performance, Lagfree, Conservative (module), Lazy (module)
    - Schedulers: BFQv3-R1, Noop, SIO, VR (default)
    - XZ Compression only for KERNEL (+speed, --size)

    INITRAMFS AND MISC:
    - Auto-Root (3.0.7)
    - Init.d Support
    - Bootanimation Support (system/media & data/local)
    - Touch Move Support + Touchscreen Fix (5 - thx to vitalij)
    - BLN v2 support (by Creams)
    - CIFS, FUSE, CUSE Support (modules)

    CPU/GPU:
    - NO OC!!!! (100-1200Mhz)
    - CPU Undervolt support
    - BUS Control Support (by GM)
    - Complete control of freqs/voltages with Voltage Control/SetCPU
    - Sleep-of-Death fixes
    - GPU Overclock/Undervolt (by netarchy)
    - Charging current interface support (by GM - via Voltage Control)
    - New ARM Mali-400 Drivers (November '11)
    - Speedmod Color/mDNIe values (by hardcore)

    MEMORY & PERFORMACES:
    - JHash 3 optimised
    - SLQB Allocator (better memory management)
    - Improved memory management functions
    - Allow CPU Unaligned access (++performaces)
    - Disabled ALL the debugging (++speed, --size)
    - AFTR ARM Idle Mode enabled by default (++battery)

    CONNECTIVITY TWEAKS:
    - Patch wakelock WiFi (by hardcore)
    - Disabled debugging WiFi/BT
    - New WiFi Drivers
    - TCP/IP Tweaks

    OPTIMISATIONS:
    - Dynamic Hotplug with tweaked thresholds (no Tegrak 2nd core support, useless)
    - 2nd CPU Core OFF when screen is locked
    - ARM_ERRATA_743622
    - Upstream patches and fixes from Galaxy Note sources
    - Upstream patches and fixes from Linux 3.2 mainline kernel
    - GPU UI Rendering
    - fuelgauge wakelocks fixed (by Entropy)
    - Compiled with CodeSourcery G++ Lite 2011.03 + Hard Float CFLAGS
    - Ultra-Optimised EXT4 filesystem (from 3.2 linux kernel)
    - Generally optimised code (removed useless functions and variables)


    Been using it for a few hours and it seems OK. Too early to tell about battery life.

    More info and download from here:-

    [KERNEL][26.12.11] N.E.A.K. Kernel for I9100 - The future is NOW! (v1.1x) - xda-developers

    Very smooth scrolling. No SOD's so far. Using stock voltage. lulzactive governor and v(r) scheduler. Trying it at 100 -> 800MHz. No problems yet.

    For NEAK ICS kernel (v2.x), see here:-

    http://androidforums.com/galaxy-s2-international-all-things-root/523329-n-e-k-ics-kernel-v2-x.html
     


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  2. Hawker

    Hawker Android Expert

    I'll give this a go now butty
     
  3. ironass

    ironass Extreme Android User
    Thread Starter

    :D Knew you would old bean!

    Had a bit of a disaster with Siyah 2.6.1 last Friday. Long story, short, no battery, ended up having to borrow an iPhone to make a call!!! :eek:

    Been using Siyah 2.5.2 over the holidays and its been fine.

    This kernel is very small, 4.4MB, compared to Siyah at almost 8MB. No 2nd Core support, as it's built in. Max: overclock is 1200MHz. BLN works.
    Video and playback on HD are fine for me.

    Nice little N.E.A.K. menu, in CWM Recovery, allows more governors to be added or subtracted.

    Won't hurt to give it a run. ;)
     
  4. Hawker

    Hawker Android Expert

    Siyah-v2.5.2b is my Siyah of choice currently. Cant get along with 2.6.1 at all. No doubt I'll give 2.6.2 when its released imminently, but will give this one a try in the meantime.
    Early signs are good for me. No lag, everything smooth.
    I wont miss Tegrak 2nd core support so thats not an issue for me.
    Using default lulzactive and vr governor/scheduler but put min to 100

    See how battery copes overnight....
     
  5. Rudedawg

    Rudedawg Android Expert

    Whilst you mention Tegrak butty boy , When I try to use it these days it tells me my phone isnt supported ?? I use antutu now.
     
    Hawker likes this.
  6. Hawker

    Hawker Android Expert

    I'll take a look into that then. I think only siyah supports it up to now.

    Not massively impressed with battery life. lost 8% overnight where it's usually 4 or 5%. Has the aos bug. Was at 30% CPU use instead of around 5% with siyah. I know it's debatable over if siyah has fixed or just masked this, but battery does seem better with siyah, at least on idle.
    I like their cwm version tho. Colour it much nicer to read with their new sub menu which includes an efs backup option. Also when choosing to instal something it has just a yes/no/back options instead of the usual 10 or so no options. It won't be to long before all new cwm versions will be made this way.
     
  7. ironass

    ironass Extreme Android User
    Thread Starter

    A very promising start for this kernel considering it is only v1.1. :)

    It now remains to be seen if the developer, simone201, can learn from this release, (which only came out 18 hours ago), and come up with a v1.2 to improve on it.

    As hawker mentions, it has the AOS, (Android Operating System), bug that appears in a lot of kernels and shows AOS as high, particularly in screen off and sleep. However, this did not affect my overall performance for this kernel as the AOS seemed to replace the kworker usages I'd been experiencing with Siyah.

    After 17 hours on N.E.A.K. I was not far off my Siyah 2.5.2 usage and better than my Siyah 2.6.1+battery usage. That is to say, that with my usage I could get around 27 hours.

    Using lulzactive and v(r) for governor and scheduler gave a very, very, smooth performance indeed and rivalled Siyah in this respect.

    I too liked the Recovery menu layout that is offered.

    I would certainly recommend giving this kernel a try in future and will be keeping my eye on it. ;)
     
  8. ironass

    ironass Extreme Android User
    Thread Starter

  9. Hawker

    Hawker Android Expert

    Fixed or masked, who really knows, but it definitely uses more battery for me when it's showing as aos.

    This one is definitely worth keeping an eye on.
    I'll keep it on for today and assess general usage drain and see how it drains overnight again. If it goes down 8%+ again I'll put siyah 2.5.2b back on until the next version of this comes out.
     
  10. Hawker

    Hawker Android Expert

    I get the following in my /data/user.log file. I do not get any whatsoever if I boot up using Siyah. Perhaps this is because Siyah does not log at all, I'm not sure. Most are just messages but there are a few errors that may be a cause of concern:

    /data/user.log
    Tue Dec 27 18:40:41 GMT 2011
    START of post-init.sh
    mount: mounting none on /acct failed: Device or resource busy
    mount: mounting none on /dev/cpuctl failed: Device or resource busy
    sysctl: error: 'kernel.sched_min_granularity_ns' is an unknown key
    sysctl: error: 'kernel.sched_latency_ns' is an unknown key
    sysctl: error: 'kernel.sched_wakeup_granularity_ns' is an unknown
    key
    sh: write error: Invalid argument
    sh: write error: Invalid argument
    /sbin/post-init.sh: line 79: Enable: not found
    SQL error: database disk image is malformed
    vm.vfs_cache_pressure = 70
    sh: write error: Invalid argument
    su already exists
    Superuser.apk already exists
    Tue Dec 27 18:41:08 GMT 2011 PRE-INIT DONE of post-init.sh
    Tue Dec 27 18:41:18 GMT 2011 USER EARLY INIT START from /system/etc/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER EARLY INIT DONE from /system/etc/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER EARLY INIT START from /data/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER EARLY INIT DONE from /data/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER INIT START from /system/etc/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER INIT DONE from /system/etc/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER INIT START from /data/init.d
    Tue Dec 27 18:41:18 GMT 2011 USER INIT DONE from /data/init.d
    mount: mounting /dev/block/mmcblk0p11 on /mnt/sdcard failed: Device or resource busy
    clockworkmod folder already exists
    .salted_hash already exists
    .one_confirm already exists
    Tue Dec 27 18:41:18 GMT 2011 END of post-init.sh

    Is this just me?
     
  11. Hawker

    Hawker Android Expert

    V 1.2 is now up.
    going to give it a try now...
     
    ironass likes this.
  12. Rudedawg

    Rudedawg Android Expert

    Got a constant loop of system Force crashes with this kernal...ill leave it well alone.
     
  13. Hawker

    Hawker Android Expert

    Not having any issues at all with this up to now.
    Everything is very smooth, lots of deep sleep overnight which drains 0.5% per hour which is always my personal benchmark.

    Its either this or siyah 2.6.2 as being my kernel of choice.
    I'll probably stick with this until cwm 5.5 is fixed.
     
  14. turbohobbit

    turbohobbit Android Enthusiast

    So would you guys recommend this over Siyah for the time being then? I must confess, I'm starting to find Siyah a bit too complex with too many options. This sounds like a good "WYSIWYG" option.
     
  15. Hawker

    Hawker Android Expert

    If you don't use cwm manager then i certainly would.
    Its every bit as smooth and battery is excellent.
     
  16. turbohobbit

    turbohobbit Android Enthusiast

    I don't, I tend to go in via recovery. Cool, cheers for the intel squire!
     
  17. turbohobbit

    turbohobbit Android Enthusiast

    Just flashed NEAK. It looks like the auto dynamic hotplug thing is working. We'll see how this one pans out...
     
  18. Sword Fish

    Sword Fish Android Enthusiast

    Interesting kernel. I installed Siyah 2.6.4 and ran a benchmark test and got 5037 without making any changes. With this kernel, stock, I get 5256. Now, lets see how battery is...
     
  19. turbohobbit

    turbohobbit Android Enthusiast

    I've been getting rude amounts of deep sleep. In fact, my phone would have been asleep for much of today had it not been for a pesky Handcent partial wakelock :-(
     
  20. Hawker

    Hawker Android Expert

    Consistently get twice as much battery drain on idle with Siyah 2.6.3 and 2.6.4 compared to neak. With neak overnight my battery drains roughly 0.5% overnight, so cant complain with this kernel at all, as I also have no complaints over its performance.

    1.3 will be out in the next day or so, so I will definitely be keeping a look out for this.

    The developer also seems very helpful and responds quickly to questions.
    Highly recommended folks. It has now become my kernel of choice until I find something better! :)
     
  21. Sword Fish

    Sword Fish Android Enthusiast

    Interesting, I tried this Kernel and got very poor battery from it. Returned back to Siyah 2.6.4 and find it much better. Strange that the same kernel works different on different phones. Did you tweak yours or are you running it stock?
     
  22. Sydney99

    Sydney99 Android Expert

    I got that too. Loved the recovery tweaks but battery not quite so good and not as smooth as siyah for me (never thought I'd day that!).

    That's why you got to just try em for yourself!
     
  23. Hawker

    Hawker Android Expert

    I'm using default scheduler/governor.
    Only tweaks I've done was to set min/max to 100/800
     
  24. turbohobbit

    turbohobbit Android Enthusiast

    My phone's running just fine on it. Deep sleep for 4hrs 08min out of 5hrs 08min total state time. Currently on 86% battery after a few calls, some texting, some e-mail, a bit of 'Book, and some Twittering.
     
  25. Kie

    Kie Android Expert

    I thought I'd try this after losing 6% overnight with Siyah 2.6.4. Seems pretty good. I miss being able to easily reboot into CWM Recovery (I think a NEAK app is required in the near future).

    Can't comment on battery yet but I noticed in the modded CWM Recovery that whether I backup to sd card or internal sd it always chooses internal sd card. For me, it's a good thing, since my external card is dodgy, but I was wondering if anyone else is having trouble with it recognising the external card?

    Edit: It recognises the card but won't backup to it, lol.

    As for speed and performance, it's fine!
     

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The Samsung Galaxy S2 release date was April 2011. Features and Specs include a 4.3" inch screen, 8MP camera, 1GB RAM, Exynos 4210 Dual processor, and 1650mAh battery.

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