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Thread: Increase VM Heap Size?

  1. Junior Droid
    1slyez's Avatar
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    #1

    Increase VM Heap Size?

    In some other ROMs the maximum VM Heap size is substantially higher than with CM7. I think one goes to 60 or 64 where as CM7 is maxed at 32. My device seeme to operate with more available free memory in these roms with the high VM heap size. Is there a way to increase the maximum size in CM7, or has the max size been determined to be 32 for a good reason? Is this setting kernel based, so would switching kernels give me different options for this? Thanks.
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  3. Developer
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    #2
    Yeah... it should be under /data/property or something like that, it will be a file that says persistant.vm.heap.size or something close to that (I don't have cm on my phone anymore) but you can edit that file & it will be persistant on boot and with new updates

    Sent from my Droid using Tapatalk
  4. Junior Droid
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    #3
    awesome. thanks. Now when I change that text file it will operate at the setting I input even though the number I select doesn't show up in the cyanogenmod settings gui? Also do I need to select numbers that increase in any certain way(ie: even numbers; 2,4,8,16,32, etc?) or can I pick any number?
  5. fused2explode's Avatar
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    #4
    Make it an even number but no, you don't have to jump between 32 and 64. I wouldn't go higher than 44 though.

    F2E

    Sent from CM7 RC2
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    #5
    There's a setting in CM now for 40
  7. fused2explode's Avatar
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    #6
    Quote Originally Posted by gambit07 View Post
    There's a setting in CM now for 40
    What build #? #14 (RC2) only goes to 32.

    F2E

    Sent from CM7 RC2
  8. Master Droid
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    #7
    in winner's build/mod there's an option for 40
  9. Droid
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    #8
    Quote Originally Posted by jeffv2 View Post
    Yeah... it should be under /data/property or something like that, it will be a file that says persistant.vm.heap.size or something close to that (I don't have cm on my phone anymore) but you can edit that file & it will be persistant on boot and with new updates

    Sent from my Droid using Tapatalk
    What you using now? Miui?

    Sent from my Droid using Tapatalk
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    #9
    Quote Originally Posted by 1slyez View Post
    In some other ROMs the maximum VM Heap size is substantially higher than with CM7. I think one goes to 60 or 64 where as CM7 is maxed at 32. My device seeme to operate with more available free memory in these roms with the high VM heap size. Is there a way to increase the maximum size in CM7, or has the max size been determined to be 32 for a good reason? Is this setting kernel based, so would switching kernels give me different options for this? Thanks.
    My build has it defaulted to 40. It also has the option to change it to 40 in CM Settings.
    Galaxy Nexus Setup
    Rom: My CM9 Kang
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    CM7 Thread with My Build for OG Droid





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  11. Droid Ninja
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    #10
    Quote Originally Posted by jengas kahn View Post
    in winner's build/mod there's an option for 40
    I believe winner added that in there himself. I don't think it's an actual Cyanogen Mod option. At least it hasn't been in any of the builds I've used. Quick question, I know upping the heap size allows apps to use more memory but how does that help overall memory usage?

    Sent from my Droid using Tapatalk
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