Logic 9 users beware of upgrade!

Discussion in 'Digital Audio' started by Muso75, Oct 14, 2010.

  1. macrumors newbie

    Aug 5, 2010
  2. macrumors 6502a


    Feb 20, 2009
    Switzerland, ZG
    Thanks, very interesting.

    I've already updated my Mac Pro 8 Core but didn't tested it yet. I am curious if it affects my machine, too ! Would be very disappointing....

    Are 09 Quad Cores the only machines affected yet?
  3. macrumors G4

    Mar 4, 2006
    Does this affect the Logic Express update too?
  4. macrumors 6502

    Sep 3, 2006
    HyperThreading can help, but it's not exactly a 2x speed up in any way. So I find those reports a little odd.
  5. macrumors regular

    Jun 27, 2010
    As far as I heard, it's the same thing.
  6. macrumors 65816


    Jun 19, 2005
    Minneapolis, MN, USA, Urth
    Fix for 9.12

    Fix for 9.12.

    Open terminal:

    Enter this string:
    defaults write com.apple.logic.pro MD_AllowVirtualCores -bool yes

    Your hyperthreading is re-enabled.

    On my Corei7 2.8 ghz iMac I went from 61 tracks with HT with 9.11 to a pitiful 30 tracks!

    With 9.12 and the fix I went to 70 tracks!

    This is using the Evan benchmark where every track has a space designer and exs1 instrument. Overkill I know. No real session would ever have that.

    At any rate, there you go.
  7. macrumors 6502

    Nov 16, 2005
    in the southeast
    thanks for the heads up. will hold off on any upgrade in the meantime.

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