[Yosemite DP 5] mac os app switching becomes sluggish due to prl_deskctl_agent

Discussion in 'Installation and Configuration' started by SangjinL, Aug 12, 2014.

  1. SangjinL

    SangjinL

    Messages:
    6
    Starting with Yosemite DP 5, the app switching function (like switching by clicking a window or via command + tab) on Mac OS has become super sluggish. I'm referring to a Mac OS function, not Parallels.

    All you need is to have Parallels installed, and try switching apps by clicking on a window. You get a noticeable hang (the OS being unresponsive for 5 - 6 seconds) before the desired app finally becoming active. It was traced to the Parallels' desktop control agent. In system.log I see

    Code:
    8/10/14 6:39:26.758 PM prl_deskctl_agent[218]: IMK Stall detected, *please Report* your user scenario in <rdar://problem/16792073> - (activateServerWithReply:) block performed very slowly (5.08 secs)
    8/10/14 6:39:26.758 PM prl_deskctl_agent[218]: IMK Stall detected, *please Report* your user scenario in <rdar://problem/16792073> - (deactivateServerWithReply:) block performed very slowly (5.08 secs)
    
    I am running the latest Parallels 9 (9.0.24237).

    This happens most reliably (at least in my case) by clicking on a window. It often happens (but not always) if you do command + tab. It doesn't seem to happen if I click on the title area of a window.

    And it seems like the only way to fix this is to uninstall Parallels.

    Any thoughts?
     
  2. SangjinL

    SangjinL

    Messages:
    6
    Could you confirm if this is indeed an issue with the desktop control agent + yosemite? Any possible workaround for this problem?
     
  3. SangjinL

    SangjinL

    Messages:
    6
    Noting that this issue still exists with Parallels 10 and Yosemite DP 6.

    Is there any workaround for this issue? It's real bad.
     
  4. SangjinL

    SangjinL

    Messages:
    6
  5. Michael-N

    Michael-N Bit Poster

    Messages:
    4
    Uninstalling Parallels Acces resolved the same issue for me on a 15" rMBP (2012). Thanks!
     
  6. Victor_Jones

    Victor_Jones Bit Poster

    Messages:
    1
    I can confirm that the same thing happened to me on a new 13" rMBP. Fixed by uninstalling Parallels Access.
     
  7. Mark_Pinis

    Mark_Pinis Bit Poster

    Messages:
    1
    The same problem happened to me on a MacBook Pro (15-inch, Early 2011) after installing Yosemite. I uninstalled Parallels Access and the problem and console messages went away.
     

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