Mission Control Lag in ML on rMBP

Discussion in 'MacBook Pro' started by slrandall, Jul 29, 2012.

  1. slrandall macrumors 6502

    Jun 15, 2011
    So there's already a thread on this in the ML forums, but I wanted to ask here: does anyone with an rMBP running ML not have incredible choppiness and lag when entering and exiting Mission Control while Safari is running?

    I've tried it without Safari, and everything is much smoother, almost like it used to be on 10.7.4. But with Safari open (even forcing the discrete GPU to be running), the lag is god-awful.

    I'm thinking of doing a clean install, but if there's no one out there that doesn't have this problem, then it might not be worth trying.
  2. leenak macrumors 68020

    Mar 10, 2011
    I never had a problem with Mission Control lag myself, even under Lion.
  3. stevelam macrumors 65816

    Nov 4, 2010
    do actual stuff on your rmbp. then you'll see it.
  4. Feed Me macrumors 6502a

    Feed Me

    Jan 7, 2012
    Location Location
  5. leenak macrumors 68020

    Mar 10, 2011
    Actual stuff meaning like running multiple programs at the same time, running parallels, playing games, having multiple safari windows/tabs open, etc, etc? I haven't seen any lag in the past month of doing a variety of tasks so not sure what you mean 'stuff'. :)
  6. wethackrey, Jul 29, 2012
    Last edited: Jul 29, 2012

    wethackrey macrumors 6502

    Feb 27, 2007
    Redondo Beach, California
    Not to put too fine a point on it, but this is exactly the kind of unhelpful comment that makes this forum unpleasant. I have twelve applications running at the moment including two Safari windows, Photoshop CS6, DreamWeaver CS6 and NetBeans and there is absolutely no lag going in an out of Mission Control. Don't assume that those of us who aren't experiencing a performance lag are idiots or aren't doing the kind of "actual" work you're doing.

    I assume that if you say you see a lag that you actually do. Please pay me the courtesy of making the same assumption. I just don't have the lag. There's something else at work here. Memory maybe (I have 16GB), or a background process running (Spotlight indexing?) or, more likely, just clean living.

    [Edit] I've just launched two VMs under Fusion and an RDP session over an SSL VPN. Still no lag.
  7. BigZ9 macrumors member

    Apr 2, 2012
    2.3/16 rMBP

    I have 2 safari windows open to websites, iTunes and Activity Monitor. There isn't any noticeable lag when I enter or exit Mission Control.

    Although, if one of safari windows is open to the Top Sites page, I can clearly distinguish lag, it is not "horrible" by any means, but it's less smooth than the test without Top Sites open...
  8. Meever macrumors 6502a

    Jun 30, 2009
    Have you done some kind of modification? Some sort of software optimization or somethIng? Because I've got the base model and man. I have a couple tabs, few images and photoshop open and the damn thing lags like a mofo.
  9. wethackrey macrumors 6502

    Feb 27, 2007
    Redondo Beach, California
    No. It was afresh Lion (10.7.4) install two days after I got the machine to deal with formatting my boot disk into two partitions, with a migration from a clone of my Lion machine's drive (since I couldn't do a Firewire target disk mode transfer). Then an installation of Mountain Lion on top of the Lion 10.7.4 instance.

    The only thing I can think is non-standard is how I handle my user home directory. I always set up a boot partition and a data partition (which I name Clients). I put a /Users/myname directory on Clients and point my user home directory there. I keep an admin user with a home directory on the boot volume so I can get into the OS in the absence of the Clients volume. This setup allows very fast disaster recovery,since I keep a clone of both volumes on an external drive. I can erase and restore the boot volume without affecting any of my user data.

    It doesn't seem like that would influence a performance lag issue. I can work from the admin account to test that though. A more likely culprit may be memory.

    The only other non-standard things I have running are these preference panes:
    globalSan iSCSI (for working with iSCSI SANs)
    Paragon NTSF driver (to mount NTFS volumes read/write)
    Citrix online plugin (required for a client VPN)
    Launchpad Control 1.63 (Andreas Ganske's tool to organize apps in LaunchPad
    Perian, Divx and Flip4Mac (Audio/video translation stuff)
    Flash Player
    Tivo Desktop

    I also run a Java thin client for SSL VPN called NetExtender from SonicWall (now Dell). And Yojimbo from Barebones is usually always running.

    I suppose I could kill them all and see if I start having a lag issue, but it seems unlikely.
  10. AZREOSpecialist macrumors 68020


    Mar 15, 2009
    New rMBP 2.6 GHz w/ 16 GB RAM and 512 GB SSD. No lag whatsoever. I've opened multiple Safari 6 windows, including the top sites window, opened some applications and ran Mission Control. No lag at all. None.

    I wonder if those who are experiencing lag have something installed that is causing them issues? Do any of you have SwitchResX or one of those other display utilities, that could definitely affect performance if you are using a non-Apple supported display mode.

    If your rMBP is lagging "like a mofo", I respectfully suggest you either restore it to factory defaults or exchange it.

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