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[KERNEL][4.5.2011][2.6.32.21] Kernels from Adrynalyne

Discussion in 'Thunderbolt Roms' started by Demolition Man, Apr 6, 2011.

  1. Demolition Man
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    Demolition Man New Member

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    (Disclaimer: I did not make these kernels. I'm just forwarding the info here.)

    There are three types of kernels to choose from.

    a versions: Stock clock, very optimized, undervolted.
    b versions: 1.4ghz, very optimized, slightly overvolted for 1.3ghz and 1.4ghz, undervolted otherwise.
    c versions: 1/4ghz, very optimized, more overvolted for 1.3ghz and 1.4ghz, undervolted otherwise.


    Which should you choose? Well if you don't want to overclock, the a version is a no brainer.

    If you do want to overclock, b and c are your choices. Version b will be better on battery life, however less devices will be able to run the lower voltage at the higher speeds. The c version will be slightly worse on battery, but should be MUCH more compatible with devices.

    Remember: Overclocking is at your own risk, and not mine!

    All of these kernels will boot at 1ghz unless set to overclock via setcpu or another overclocking app.

    Features:

    CFS CPU scheduler
    BFQ I/O scheduler
    Undervolted
    Overclocked
    SLQB slab allocator
    Audio enhancements
    smartass, performance, conservative, powersave, ondemand(default) governors.
    neon and cortex optimizations
    battery charging speed enhancements
    updated ashmem driver
    GPU+ patch
    nfs support
    ext4 support
    gps enhancement (thanks ziggy!)
    Various other little insignificant tweaks.


    Current project is the bamf kernel, mainly to be used with the bamf roms, but will work with any Sense based rom.

    Current version is 4.1.

    Version A

    Version B

    Version C

    4.1 Changes

    --Tweaking of version a smartass governor.
    --Addition of death ray (requires suitable app support, such as here: http://forum.xda-developers.com/show....php?t=1024220)"

    Requirements to overclock:

    --Bravery (or stupidity?)
    --Setcpu SetCPU for Root Users [2.1.1a] Dual Core Madness 2/27/2011 - xda-developers

    Notes to devs:

    --I am totally cool with you guys using my kernels in your roms, but please give me a heads up and a small blurb in your credits is all I ask.

    XDA Thread
  2. dkscudder
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    dkscudder New Member

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    Demolition Man,

    FYI...The links in the original post don't work.

    I'm trying out version B now. Thanks for posting these.
  3. Demolition Man
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    Demolition Man New Member

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    Thanks. Updated the main post with the corrected links.
  4. mkjellgren
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    mkjellgren New Member

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    The b version is running great for me on tps1.2.

    Sent from my ADR6400L using DroidForums
  5. BigMcGuire
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    BigMcGuire New Member

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  6. Demolition Man
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    Demolition Man New Member

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    Updated the main post with links to the 4.1 kernels. Thanks BigMcGuire for posting that info.
  7. sgtguthrie
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    sgtguthrie New Member

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    Wow, 4.1a is sooo much faster than the stock kernel!!! I'm definitely going to have to try das bamf!!!

    sent via rooted THUNDERBOLT using Tapatalk
  8. Lucas5
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    Lucas5 New Member

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    i don't know why, but i'm having GPS issues with Adrynalyne's kernels. google maps seems to work fine, although with a slight pause before it locks on, other apps that try to use gps never seem to lock on. once I restored my TB to the stock kernel, the gps started working great again.
  9. WorldOfJohnboy
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    WorldOfJohnboy New Member

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    This is a n00b question, so my apologies, but:

    Are there instructions on loading a kernel?

    Do I need to wipe the device after loading a new kernel?

    What is the easiest way to backup apps/settings before flashing the kernel?
  10. sgtguthrie
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    sgtguthrie New Member

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    With the smartass governor my CPU doesn't drop below 768 at idle. If I switch it to ondemand it immediately drops to 248. Going to test this out a little more.

    Edit:
    Interactive scales down nice too. I guess I'll use that with a screen off profile.


    sent via rooted THUNDERBOLT using Tapatalk
  11. Lucas5
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    Lucas5 New Member

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    there's no need to backup or wipe when installing a new kernel.
    as for the easiest method of loading it.... copy the zip containing the kernal onto your phone SD card than use rom manager to install it. from rom manager, choose "install rom from sd card" and simply locate that zip file that contains the kernel that you had downloading/copied to your SD card.
    also, be sure that you create a backup before you install any rom or kernel. you can create the back with rom manager.
  12. WorldOfJohnboy
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    WorldOfJohnboy New Member

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    Awesome, thanks for the post.

    One final question: Should I continue to use SetCPU after loading the new Kernel, or does the kernel do all the work for me?
  13. Lucas5
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    Lucas5 New Member

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    from what Adrynalyne said about the "smartass" governor, it should do all the work for you unless you plan on overclocking it. if you're going to overclock it than i'd at least use setcpu to throttle the speed down if or when the temperature gets too high.
    still, i read on the xda-developer forums that Adrynalyne was still tweaking the "smartass" governor so i'd set the governor on "ondemand" and use profiles in setcpu so that the cpu goes down to the slowest when the screen goes off. that's what i do right now.
  14. currensy
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    currensy New Member

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    my htc screen wont load up now...i'm actually stuck...this run through clockwork right
  15. BigMcGuire
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    BigMcGuire New Member

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    Correct, just put the Zip on your SD Card and choose Install from SD Card and select it. I highly recommending wipe before installing.
  16. WorldOfJohnboy
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    WorldOfJohnboy New Member

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    I didn't wipe and had no issues.

    I am not noticing any vast improvements in battery life even with this kernel and SetCPU Screen off profile.
  17. tu3218
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    tu3218 New Member

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    I notice 4.1a is undervolted as well as 4.1b. But they state that 4.1b may not work as well on all devices. Is that because your overclocking? I want to have an undervolted kernel for battery life but would also like to overclock. Is this the reason for this?
  18. BigMcGuire
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    BigMcGuire New Member

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    Exactly, 4.1A is undervolted but has the stock 1.0Ghz clock speed.

    4.1B is undervolted up to 1.0Ghz AND goes to 1.4Ghz but with some aggressive undervolting. Not all phones can handle this. Many people will need to use C.

    4.1C is undervolted up to 1.0Ghz AND goes to 1.4Ghz but with overvolting so you don't get reboots. If you can't use B use this.
  19. BigMcGuire
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    BigMcGuire New Member

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    Yeah, I was having the same problem. The solution that worked for me was - plug in your phone to the wall, put it on map, and let it sit there for 5-10 mins and it will EVENTUALLY get the GPS signal and the next time you get it, it will be instant.

    However, the latest kernels, 4.1 and 4.2, I believe, have a GPS fix and it's almost instant. Either way, I've been told that the first GPS fix usually takes quite a bit of time (this was true for me for my Droid 1 every time I flashed a new rom).
  20. BigMcGuire
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    BigMcGuire New Member

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    Looks like we have the 4.2 Kernels up! Adrynalyne put up a new thread at XDA - [KERNEL][4.8.2011][2.6.32.21] Kernels from Adrynalyne - xda-developers

    Kernel 4.2A - http://adrynalyne.grdlock.net/bamf/kernels/bamf_4.2a.zip
    Kernel 4.2B - http://adrynalyne.grdlock.net/bamf/kernels/bamf_4.2b.zip
    Kernel 4.3C - http://adrynalyne.grdlock.net/bamf/kernels/bamf_4.2c.zip

    Changes: "
    TinyRCU (4.2+)
    Changes to wifi power management (4.2+)
    Backport of 2.6.39rc2 ondemand governor (4.2+)--Thansk Imoseyon
    CIFS(4.2+)"
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