4 Replies Latest reply: Jul 2, 2013 1:38 PM by nbar
Viraj Toronto Level 1 (0 points)



Am currently having issues with Late 2011 Macbook Pro 13'' running OSX 10.8.3. wherein the machine has slowed down considerably (opening safari, working on MS Word, MS Excel etc.)


Is this due to the upgraded OSX or is there any way to defragment the machine.


Please advise.

MacBook Pro, Mac OS X (10.7.2)
  • Bimmer 7 Series Level 6 (10,270 points)

    There are no defrag options for Mac OS.


    Why not go to disk utility and verify your disk permissions - if errors are found - repair them, then restart your Macbook and see if that helps.


    After you've done that and you feel that it's still slow - try doing a SMC RESET.


    SMC RESET also fixes this:


    System Performance

    The computer is running unusually slowly although it is not experiencing abnormally high CPU utilization.

    Application icons may "bounce" in the Dock for an extended amount of time when launched.

    Applications may not function correctly or may stop responding after being opened.

  • Linc Davis Level 10 (184,820 points)

    First, back up all data immediately, as your boot drive might be failing.


    There are a few other possible causes of generalized slow performance that you can rule out easily.


    • If you have many image or video files on the Desktop with preview icons, move them to another folder.
    • If applicable, uncheck all boxes in the iCloud preference pane.
    • Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.


    Otherwise, take the steps below when you notice the slowdown.


    Step 1


    Launch the Activity Monitor application in any of the following ways:


    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)


    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.


    ☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.


    Select the CPU tab of the Activity Monitor window.


    Select All Processes from the menu in the toolbar, if not already selected.


    Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.


    Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?


    Next, select the Disk Activity tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in and Writes out.)


    Step 2


    If you have more than one user account, you must be logged in as an administrator to carry out this step.


    Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select

    View Show Log List

    from the menu bar.


    Select the 50 or so most recent entries in the log. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.


    When posting a log extract, be selective. Don't post more than is requested.

    Please do not indiscriminately dump thousands of lines from the log into this discussion.

    Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long.

  • Vincenzo Forleo Level 1 (0 points)

    Hello guys,

    I aproximately heve the same problem of Viraj Toronto.

    I'm running a Mac OSX ML on a late 2009 Macbook Pro 15".

    I've been started to have problem (impressive prerformance slow down) 2 months ago, after a reboot from Windows partition to Mac ones...maybe it is just a concidence....

    I already heve done the steps Linc Davis has suggested, but the results are good in terms of CPU%, System Memory, permissions and so on.


    What do you suggest I can do to solve the problem?


    Thank you.




    PS: OS X Version 10.8.4, 2.53 GHz Intel core 2 Duo, 8 GB 1067 MHz DDR3, 220 GB for ML and 100 GB for Win7