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Under the hood upgrades?

Discussion in 'OS X Mountain Lion (10.8)' started by kristoffer4, Feb 21, 2012.

  1. macrumors 6502a


    What I loved about SL was that it made my mac more effecient with new drivers and new tech Grand Central and other stuff.

    So any new under the hood changes in ML?
  2. Riemann Zeta, Feb 21, 2012
    Last edited: Feb 21, 2012

    macrumors 6502a

    I don't think that there has been any mention of the actual kernel-level improvements that might exist in the now Mac-less Mac OS 10.8. One of the big things that Lion introduced was real Memory Address Space Layout Randomization, which improves security. Apparently ML extends this even further, making even the kernel itself and kext modules randomly loaded into memory space. And of course, all non Apple App Store executables are flagged as "dirty" and quarantined unless the user disables the "Gatekeeper" feature. So I think ML is mainly about security, not speed.

    The only other thing known about Mountain Lion is that it is pure x64 only--no more legacy x32 kernel or support for 32bit kexts. Also, I think that the filesystem and main applications are being slowly transitioned to iOS's non-global "Apps own their own files and have to pass duplicates to other Apps" organization paradigm (but the standard full HFS+ disk is still accessible with Finder for now).
  3. macrumors 6502a


    Ok. And I guess no signs of ZFS?
  4. macrumors 601

    No, they had to drop that due to licensing years ago.
  5. macrumors 6502a


    People at the forums here are mostly saying great things about ML. I especially like ML because of the "reopen windows when logging in" feature is turned off by default :D

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