How to find what is causing freezes sometimes?

Discussion in 'MacBook Pro' started by temen, Dec 15, 2011.

  1. temen macrumors member

    Apr 15, 2011

    Im not sure if this is correct forum.. but.

    Sometimes my macbook 17'' 2011 is lagging, freezing.
    I have always eye for memory/cpu usage (iStat), so I see I always have at least 1-2GB ram free (of 8GB total), cpu usage is very rare more than 20%.

    Maybe it's lagging because of iowait?
    There's some good way to find out what is causing slowness sometimes? If I will know that this is hard drive for example I can buy ssd. But I'd like to know before I'll buy anything ;)

  2. yakult121 macrumors newbie

    Dec 15, 2011
    Happens to mine as well. I see lagging, sometime the bouncing beach ball would just come onscreen for no reason.

    Once in a while, OSX will reboot under heavy load (I'm running VirtualBox 4.1.6 with Oracle Solaris as Guest).

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