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Thread: JIT - Check it out

  1. Senior Droid
    agdaniels's Avatar
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    #1

    JIT - Check it out

    Might be relevant to someones interest. Almost hitting 10 Mflops in Linpack stable

    AllDroid - View topic - JIT for Droid
  2. Senior Droid
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    #2
    That's a real tough thread to follow. I gathered that JIT is called "Just in Time" and apparently the Nexus has it installed. Apparently they have it mostly working on the droid with some real good results in speed increases. Hmmm...
    Last edited by vpshockwave; 01-28-2010 at 12:35 AM.
  3. Senior Droid
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    Quote Originally Posted by vpshockwave View Post
    That's a real tough thread to follow. I gathered that JIT is called "Just in Time" and apparently the Nexus (and the G1?) have it installed. Apparently they have it mostly working on the droid with some real good results in speed increases. Hmmm...
    A quick how-to if you didn't care to read the whole thing

    http://www.alldroid.org/download/file.php?id=1374

    put those in bin and lib respectively (lib files in /system/lib, dalvikvm in /system/bin) then add this line to build.prop

    dalvik.vm.execution-mode=int:jit

    Of course props to humancyborg and steve over on alldroid
    Last edited by agdaniels; 01-28-2010 at 12:40 AM.
  4. Droid Ninja
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    #4
    i would try it if i could figure out what they were talking about.....

    Edit: ^^^^ and now i guess now i do
  5. Senior Droid
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    #5
    Going to do me a benchmark and a backup, then check it out!
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    Alright, did everything, and phone would boot up, but the second I opened any app, I just got a black screen for a few seconds, then the phone powered off by itself. Reverting to my backup I suppose...

    [EDIT] Probably worth noting that I'm running the 900mhz overclocked kernel.
    Last edited by vpshockwave; 01-28-2010 at 01:48 AM.
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    #7
    Quote Originally Posted by agdaniels View Post
    Quote Originally Posted by vpshockwave View Post
    That's a real tough thread to follow. I gathered that JIT is called "Just in Time" and apparently the Nexus (and the G1?) have it installed. Apparently they have it mostly working on the droid with some real good results in speed increases. Hmmm...
    A quick how-to if you didn't care to read the whole thing

    http://www.alldroid.org/download/file.php?id=1374

    put those in bin and lib respectively (lib files in /system/lib, dalvikvm in /system/bin) then add this line to build.prop

    dalvik.vm.execution-mode=int:jit

    Of course props to humancyborg and steve over on alldroid
    Im a NooB when it comes to adb commands. Could you post the commands to push the files where they are supposed to go adb push "". Also how to edit the build.prop?
  8. Senior Droid
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    Quote Originally Posted by 19DroidRage84 View Post
    Quote Originally Posted by agdaniels View Post
    Quote Originally Posted by vpshockwave View Post
    That's a real tough thread to follow. I gathered that JIT is called "Just in Time" and apparently the Nexus (and the G1?) have it installed. Apparently they have it mostly working on the droid with some real good results in speed increases. Hmmm...
    A quick how-to if you didn't care to read the whole thing

    http://www.alldroid.org/download/file.php?id=1374

    put those in bin and lib respectively (lib files in /system/lib, dalvikvm in /system/bin) then add this line to build.prop

    dalvik.vm.execution-mode=int:jit

    Of course props to humancyborg and steve over on alldroid
    Im a NooB when it comes to adb commands. Could you post the commands to push the files where they are supposed to go adb push "". Also how to edit the build.prop?
    You can accomplish all of this with cp. copy the files you want to move onto your sdcard in windows, reboot in recovery, mount /system and /sdcard (mount system) then just cp /sdcard/dalvikvm /system/bin/dalvikvm

    For build.prop cp /system/build.prop /system/build.prop.bak (creates a backup) then cp /system/build.prop /sdcard/build.prop go into windows, open build.prop on your sdcard with wordpad, reverse it to put it back
  9. Senior Droid
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    #9
    You can accomplish all of this with cp. copy the files you want to move onto your sdcard in windows, reboot in recovery, mount /system and /sdcard (mount system) then just cp /sdcard/dalvikvm /system/bin/dalvikvm

    For build.prop cp /system/build.prop /system/build.prop.bak (creates a backup) then cp /system/build.prop /sdcard/build.prop go into windows, open build.prop on your sdcard with wordpad, reverse it to put it back
    I mounted system and sdcard. Then typed adb shell. Then cp /sdcard/dalvikvn /system/bin/dalvikvm

    It says cp not found?
  10. Senior Droid
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    #10
    Quote Originally Posted by 19DroidRage84 View Post
    You can accomplish all of this with cp. copy the files you want to move onto your sdcard in windows, reboot in recovery, mount /system and /sdcard (mount system) then just cp /sdcard/dalvikvm /system/bin/dalvikvm

    For build.prop cp /system/build.prop /system/build.prop.bak (creates a backup) then cp /system/build.prop /sdcard/build.prop go into windows, open build.prop on your sdcard with wordpad, reverse it to put it back
    I mounted system and sdcard. Then typed adb shell. Then cp /sdcard/dalvikvn /system/bin/dalvikvm

    It says cp not found?
    I'm probably spoiled by sholes rom, try busybox cp /sdcard/dalvikvm /system/bin/dalivkvm

    if you don't have busybox you can use adb push with adb push C:\users\yourname\desktop\dalvikvm(your filename here) /system/bin/dalvikvm

    You'll get a read only error if you try and do it when you're not in recovery mode (assuming you have sprecovery), hold x when youre rebooting to get into it

    if you don't have sprecovery or aren't rooted hit up Sholes
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