Macbook Air startup slower after OS X10.6.7 combo update

Discussion in 'MacBook Air' started by iNotion, Mar 21, 2011.

  1. macrumors regular

    iNotion

    Joined:
    Jun 5, 2008
    Location:
    Singapore
    #1
    My Macbook air is significantly slower after OS X 10.6.7.

    I have restarted twice... run both Clean my mac and OnyX software.

    Anyone experienced it too?
     
  2. macrumors newbie

    Joined:
    Mar 21, 2011
    #2
    Macbook Air 10.6.7

    No, you are not alone, 10.6.7 ruins performance of the 2010 Macbook Airs.
    Steam games are not unplayable. Apple let this update cook all this time and did not check this.
    Quality Control is definitely slipping. SMH
     
  3. macrumors G4

    Joined:
    Oct 23, 2010
    #3
    I noticed startup time was the same. I don't game, so I can't speak to FPS rates. However, note that sometimes after a major update it takes a few restarts for reboot times to get back to normal.
     
  4. macrumors 68020

    Cheffy Dave

    Joined:
    Feb 5, 2007
    Location:
    Sunny Florida, on the Gulf Coast in Homosassa Fl
    #4
    Well, it blue screened my 2007 Black Mac Book, removed it, restored through TM, back to normal, Thanks Apple for wasting my evening:mad:
     
  5. macrumors 6502

    Joined:
    May 20, 2010
    #5
    No issues at all with start time and playing WoW, can't comment on steam games.
     
  6. macrumors 6502

    BENJMNS

    Joined:
    Dec 28, 2005
    #6
    10.6.6. and other updates increased startup times but over time it went back to normal. at ease, fellas.
     
  7. thread starter macrumors regular

    iNotion

    Joined:
    Jun 5, 2008
    Location:
    Singapore
    #7
    I saw this "kernel_task" hovering on top of my Activity Monitor....

    Is that the culprit?
     
  8. macrumors G4

    Joined:
    Oct 23, 2010
    #8
    I don't see it on mine.
     
  9. macrumors 6502a

    slapguts

    Joined:
    Jan 10, 2008
    #9
    Full restart still takes 17 seconds, same as before for me.
     
  10. macrumors 65816

    munkees

    Joined:
    Sep 3, 2005
    Location:
    Pacific Northwest
    #10
    same as before 11 seconds,

    however my MBA is about 3 days old, and has not had the chance yet to get complicated settings.

    my wife's MBP blue screened with the update, but after a forced reboot, and a little patience, all is well.
     
  11. macrumors 6502

    Joined:
    Jul 12, 2008
    #11
    how are you getting 11 seconds? i get about 21-22 seconds on my ine. using a 1.4ghz 2gb ram mba
     
  12. macrumors 65816

    munkees

    Joined:
    Sep 3, 2005
    Location:
    Pacific Northwest
    #12
    I have not add to much to it, just iworks 9, aperture 3, some weather hd, and a small photo app.

    I do not store data on this, I use this computer for mobile purposes and away from home, every thing else is transferred to my iMac, and backed up, though I do keep a time machine just incase something goes wrong.

    my MBA is 1.6 4GB.
     
  13. macrumors newbie

    Joined:
    Mar 21, 2011
    #13
    it ruins my boot time as well. Before on 10.6.6 was about 12 to 14 sec now is about 30 - 40 sec ;/

    I have a 11 ultimate
     
  14. macrumors regular

    Joined:
    Feb 9, 2011
    Location:
    california
    #14
    macbook air 13" late base after update runs just fine. no blue screens or slower boot time. seems just the same pre and post update. the file size on mine was about 312 mb. i hear some other peoples updates are larger depending on year of mba.
     
  15. macrumors member

    Joined:
    Feb 18, 2011
    #15
    The slower boot times after the update could be due to the cache being flushed out when the new update was applied, if that is the case after rebooting your MBA 2-3 times the boot times should improve as the cache should be rebuilt.
     
  16. macrumors newbie

    Joined:
    Mar 21, 2011
    #16
    i reboot my air about 20 times and still no improvment. Run onyx and no difference
     
  17. macrumors newbie

    Joined:
    Mar 21, 2011
    #17
    PRAM reset helps a little bit, now boot time is about 20 - 30 sec, but it still isn't quick as before
     
  18. thread starter macrumors regular

    iNotion

    Joined:
    Jun 5, 2008
    Location:
    Singapore
    #18
    Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8F190 Safari/6533.18.5)

    Update: after numerous restarting, and using cleanmymac, my startup is faster or more or less like before.
     
  19. macrumors 6502

    Joined:
    Sep 22, 2009
    #19
    I've heard that rebuilding the boot-cache can take much more than 2-3 boots, more like 20-30 or so. Installing a new OS version will very likely clear the boot cache, so I'm guessing this is where most of your problems are coming from. Just continue to use your computer as you always do and it will be back to normal soon :)
     
  20. macrumors 6502a

    Joined:
    May 20, 2006
    #20
    when my boot was slow, i ran this on my 11" air:

    sudo chown root:admin /
    sudo kextcache -system-prelinked-kernel
    sudo kextcache -system-caches

    put your password in (it doesn't type the characters so make sure you do it right), hit return and see what happens!
     
  21. macrumors member

    Joined:
    Nov 17, 2010
    #21
    Did this same thing last night. Boot time went from 35 seconds to 13 seconds. I have no idea in Hell what it does though. Just found it on a message board.
     
  22. macrumors 6502a

    Joined:
    May 20, 2006
    #22
    Yeah, i found it by accident- I was just browsing the MBA forum and found someone that said they're boot was slow. Someone suggested that, did it to mine and now my air is rapid at booting!

    I've been emailing anyone I know with a mac to do it! Something to do with the start up file the laptop reads from I think. I did read about it but can't remember it now.
     
  23. macrumors 6502a

    GekkePrutser

    Joined:
    Aug 18, 2005
    Location:
    Ireland
    #23
    That basically forces a rebuild of the extension cache, so that's probably why it makes it faster, so it doesn't have to do it at the next boot time.

    The ownership of the root directory (the chown command) should already be set that way but it could cause problems if it isn't so maybe it was included just in case.

    I thought the installer always does this too, anyway. But apparently not.
     
  24. macrumors 6502

    Boston007

    Joined:
    Apr 9, 2010
    #24
    The real question is if these generally solves the problems, as well as rebuilding the cache, why doesn't Apple just force this on all installs from the update? I mean we all have to enter our system password anyways?
     
  25. macrumors G4

    Joined:
    Oct 23, 2010
    #25
    The first reboot was slow, but it's back to 15 seconds on my Ultimate 11. For what it's worth, I downloaded the 475MB file from the website onto a USB key and installed it from there, rather than use Software Update.
     

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