9 Replies Latest reply: Jun 18, 2012 7:33 AM by The hatter
toolman1848 Level 1 (5 points)

I need help figuring out why my MacPro runs so slow. Configuration is below. Start up drive is only 25% full; I have reset parameter ram; I have run Diskrepair;


Looking for some more clues on what to look at.



Mac Pro (Early 2008), Mac OS X (10.7.3), 6GB ram, 4-1TB internal drives
  • The hatter Level 9 (60,930 points)



    What about after safe boot and deleting all the cache your browsers and mail create?


    And try cloning and test the clone.


    6GB RAM should be 'okay' for basics but all depends what you are requiring it to do.

  • Grant Bennet-Alder Level 9 (56,679 points)

    You can also use Activity Monitor to look for problems such as excessive CPU usage and other issues.


    Displaying all Processes Hierarchically, click on the %-CPU column. Anything using more than a few percent is suspect.

  • toolman1848 Level 1 (5 points)

    I checked Activity Monitor--Safari and Safari Web Content moves from combined 20% to 50%, constantly changing. I do at the moment have several windows loaded into Safari, no games. All other processes are less than 2%, by far most less than 1%


    It seems Safari is always gobbling up a lot of processor time--I have checked Activity Monitor several times in the past and it is always Safari at the top of the list. Perhaps I should use a different browser.


    Thanks for the feedback

  • Grant Bennet-Alder Level 9 (56,679 points)

    I am running Safari in 10.6.8 on a 2009 MacPro 2.93 four-core.


    Safai is using at most 0.4 percent of the CPU. At the moment, I have 5 tabs open. BUT -- I am using "Click-to-Flash" or rather its follow-on ClicktoPlugin to suppress the automatic playing of Flash Videos.

  • Mark TL Level 1 (55 points)

    open about this mac and expand the view , make sure your RAM hasnt failed. 

  • toolman1848 Level 1 (5 points)

    all RAM is working fine

  • Linc Davis Level 10 (192,689 points)

    Please read this whole message before doing anything.


    This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.


    Step 1


    The purpose of this step is to determine whether the problem is localized to your user account.


    Enable guest logins and log in as Guest. For instructions, launch the System Preferences application, select Help from the menu bar, and enter “Set up a guest account” (without the quotes) in the search box.


    While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.


    As Guest, test. Same problem(s)?


    After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.


    Step 2


    The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login.


    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. The instructions provided by Apple are as follows:


    • Be sure your Mac is shut down.
    • Press the power button.
    • Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    • Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).


    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on some Macs.


    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.


    Test while in safe mode. Same problem(s)?


    After testing, reboot as usual (i.e., not in safe mode.) Post the results of steps 1 and 2.

  • lexiehollis Level 1 (0 points)

    Hi, Linc,


    I just found this post and did what you recommended here to deal with a slow running Macbook Pro--I logged in as a guest and things worked much better (did the safe boot just for the heck of it and things worked much better then too).  Thank you for the information!!!


    It's apparent that the problem is with my user account, so I'm wondering if you can help me with what I can do now to remedy the problem?? How can I make things run faster while I'm logged in? 



  • The hatter Level 9 (60,930 points)

    And you deleted all the Safari history, cache, previews, even bookmarks has its own cache folder - all of that is


    ~/Library/Caches but not in just one, there are three subfolders for Safari (organized?) Metadata / com.safari... /


    you can do some from inside Safari but not all - this is one of those things that I do regularly, and use 3rd party CCleaner or other tool.


    Safari and Chrome do get large out of control disk caches. Setting history and remembered sites to a day or 20MB, not 1-2GB, would be nice.


    Safe Boot handles system caches - in the past Applejack was tool of choice and needed at times to handle externsion cache, fonts, and others.


    Cloning a sytem does not copy temp files and folders or caches so it performs similar to Safe Boot only more so but retains user cache.


    Keep the boot drive with as much free space as possible - hard to do on laptops but there are upgrades possible such as an SSD or larger hard drive or both.