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Logic 9 Macbook Santa Rosa Logic 9.1.3

Discussion in 'Logic 9' started by Neve, Oct 29, 2010.

  1. Neve

    Neve New Member


    I have a SR Macbook Late 2007 with 4Go of Ram.
    I just ordered a 6Go kit upgrade and plan on running Logic in 64bit mode.

    Will I see a increase in performance? Because right now, I use a lot of plugs, (Waves, Virtual Instruments, etc...) and I often get a system overload or disk is too slow. Although all my disks are connected via FW and my I'm using a RME FF800.

    Anyone has tried upgrading the RAM?

    Thank's in advance.
  3. Brian Stone

    Brian Stone Member

    If you use a lot of RAM hungry plug-ins like Kontakt, EXS, Ivory, etc, then adding more RAM and running in 64-bit makes a lot of sense. Running in 64-bit will not provide measurably better CPU performance. 64-bit is primarily about memory access. In 32-bit mode, Logic can only access about 3.5 GB or RAM. It shares the memory with the OS and other open applications, so the available memory for Logic might be even less than 3.5GB depending on the circumstances.

    Adding more RAM (I have 8GB) and running in 64-Bit mode will allow logic to access as much available RAM as you have in your machine.

    When running Logic in 32-bit mode, both EXS24 and Kontakt both use their own memory space outside of Logic, meaning they can both access memory not used by Logic which can double the amount of memory. This means that if your primary RAM use is from EXS24 or Kontakt, then you are probably better off running in 32-bit mode. You'll need to do some experiments when you get more RAM to see which situation works best for your projects.

    My recommendation is:
    • install more memory (6-8GB if you can afford it)
    • identify which memory-intensive plug-ins are used
    • if those plug-ins are not EXS24 or Kontakt and they are 64-bit Audio Units, then run Logic in 64-bit mode. If they are 32-bit plug-ins, it won't help running Logic in 64-bit mode and indeed, all of the 32-bit plug-ins will run in Logic's 64-bit mode, but will run in the bridge which makes them cumbersome to work with. (only one 32-bit bridge plug-in UI can be open at any time)

    hope this helps,

  4. Neve

    Neve New Member

    Thank you very much Brian. I have already ordered the 6Go Kit (4+2).
    The max this Macbook can handle...

    If anyone has other opinions, feel free. ;)
  5. leytonnz

    leytonnz Senior member

  6. Neve

    Neve New Member

    The macbook cannot boot in 64-bit mode. However, you can run app in 64-bit mode even if you boot on a 32-bit kernel. These are 2 different things. ;)
  7. mmm42

    mmm42 Senior member

    You need to boot Mac OS X into 64-bit if you have MORE than 32GB of memory installed. If not, you'll be fine with the normal 32-bit kernel. 64-bit Applications (like Logic Pro) can take advantage of 64-bit without the kernel being in 64-bit, just change the preference in the Finder for that application! This also avoids compatibility problems with drivers not being 64-bit.

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