uMBP 2012 dock taking 90% CPU?

Discussion in 'MacBook Pro' started by Freida, Jul 4, 2012.

  1. Freida macrumors 65816

    Joined:
    Oct 22, 2010
    #1
    Hello guys,

    just got the latest uMPB 2012 15" the base model and did time machine restore so have my apps etc working and everything seems to be ok except the dock. The dock takes 90% of CPU so i have the computer really slow. The most noticeable it is in Diablo 3 where it takes for example 3 mins to even enter a new dungeon. How do I find out what in the dock is taking so much resources and how can i fix that? Any ideas?
    I have Diablo 3 settings on low and its still often unplayable. The latest machine should be easily cutting these things like butter so how come that I have a fan festival often with unusable machine.
    Btw, its not just Diablo 3 but that shows it the best.
     
  2. Dangerous Theory macrumors 68000

    Joined:
    Jul 28, 2011
    Location:
    UK
  3. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #3
    1. Launch Activity Monitor
    2. Change "My Processes" at the top to "All Processes"
    3. Click on the CPU column heading once or twice, so the arrow points downward (highest values on top).
    4. Click on the System Memory tab at the bottom.
    5. Take a screen shot of the whole Activity Monitor window, then scroll down to see the rest of the list, take another screen shot
    6. Post your screenshots.
     
  4. Freida thread starter macrumors 65816

    Joined:
    Oct 22, 2010
  5. varsis macrumors regular

    Joined:
    Nov 30, 2005
  6. Freida thread starter macrumors 65816

    Joined:
    Oct 22, 2010
    #6
    tried that, didn't help. The dock reboots and goes back to 90%
     
  7. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #7
    Delete the following:
    /Users/yourusername/Library/Preferences/com.apple.desktop.plist
    /Users/yourusername/Library/Preferences/com.apple.dock.plist​
    Then enter this command in Terminal, followed by pressing enter:
    killall Dock​
     
  8. Freida thread starter macrumors 65816

    Joined:
    Oct 22, 2010
    #8
    You are a genius man. That solved it. Thank you.

    Would you mind to tell us a bit more so we understand what could the issue be. Ie, what delete those to get it working :)
    Thank you so much for your help.
     
  9. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #9
    Occasionally, plist files are corrupted and cause problems with apps. Deleting them and restarting the app causes them to be rebuilt.
     
  10. Freida thread starter macrumors 65816

    Joined:
    Oct 22, 2010
    #10
    Thank you. Will remember that for next time.
    Thanks for your time, greatly appreciated.
     
  11. georgevreilly macrumors newbie

    Joined:
    Jul 6, 2012
    #11
    Thanks. That solved the 90% CPU utilization that I was seeing for Dock in Activity Monitor.
     

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