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  1. #1

    northrnchimp's Avatar
    Member Since
    Jun 13, 2010
    rMBP 13 2.5GHz 121GB SSD
    64-bit kernel users
    Just wanted to see if anyone has had any problems or incompatibilities running the 64-bit kernel? I've had mine running permanently 64 for the last 6 months with no problems whatsoever, so I'm wondering what the fuss was about releasing SL with a default 32-bit kernel.

    A couple of benchmarks are showing speed boosts between 5-10%, and of course security is improved (not such an issue on Macs admittedly), so I see no reason not to switch.

  2. #2

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    2012 13" MBP (2.5 i5, 8GB)
    Two reasons not to default to it:
    1. Not all Intel Macs are 64-bit capable.
    2. When SL was released, there were software incompatibilities with the 64-bit kernel. I'm sure some of them have been ironed out now but they weren't then.

    You can still run 64-bit applications with the 32-bit kernel. Most of Apple's applications are 64-bit now. There's little reason to risk the incompatibility when most of the user applications will work fine without the 64-bit kernel.
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  3. #3

    McBie's Avatar
    Member Since
    Apr 26, 2008
    2013 MBA 13" - OS X 10.11
    Have been running 64 bit the day it was introduced ... never looked back .... no issues.

    Cheers ... McBie
    A computer lets you make more mistakes faster than any invention in human history - with the possible exceptions of handguns and tequila.
    The bitterness of poor quality remains long after the sweetness of low price is forgotten.

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