Skip navigation

OS X Lion is incredibly slow (even after index)

200013 Views 287 Replies Latest reply: Jul 4, 2013 7:29 AM by NOYB234 RSS
1 2 3 ... 20 Previous Next
jswin Calculating status...
Currently Being Moderated
Jul 23, 2011 11:59 AM

I've installed Lion on my iMac (24-inch, Early 2008, 3.06GHz Intel Core 2 Duo, 4GB RAM) and it has become INCREDIBLY slow. I've heard many people saying that the machine would return to its typical blazing speeds after indexing finished, and it has — I've left it on overnight a couple of times to make sure everything finished, and it's still much slower than it was while running Snow Leopard. Virtually every application hangs — when typing in Finder (for example to rename a folder) the text lags several seconds behind what I'm typing. Mission Control is terrible — the graphics lag behind and it takes several seconds for the animation to finish. Often the animation doesn't appear at all, and it just flickers between frames awkwardly until the mission control display finally appears.

 

I'm working on backing up all my data and doing a clean install … I'll see what happens, but if it doesn't work I'm going to have to roll back to snow leopard, because this is ridiculous. I've never seen an OS change slow down a machine so much since Vista … hopefully it's fixable. Any thoughts on what might be the cause?

 

(Oh, and activity monitor scans look normal … nothing's hogging the CPU, and there's slightly less than 2GB of RAM free almost all the time.)

iMac Core 2 24, Mac OS X (10.7)
  • earthman3 Level 1 Level 1 (5 points)
    Currently Being Moderated
    Jul 23, 2011 11:37 PM (in response to jswin)

    jswin......you've summarized my dissatisfaction very well. Additionally, I can no longer mount my external NTFS hard drive (not sure if it has to do with this drive being connected via USB when I downloaded/installed Lion).

     

    Basically, every application is running much much slower or just crashing (e.g. Firefox, Word, Finder, etc.)

     

    Sadly, I'm seriously considering using Time Machine to revert back to my Snow Leopard system from early Thursday morning.

     

    : (

  • APierce24 Calculating status...
    Currently Being Moderated
    Jul 23, 2011 11:51 PM (in response to jswin)

    Ok guys I had the exact same problem but I think I found a solution. I just did it about 30 minutes ago and since then my MBP is running just like it used to with snow leapord. No gaurantees that i fixed the problem but this is what i did. I went to Applications>Utilities>Disk Utility. I then ran a verify disk scan and found that there were many problems with me Macintosh HD drive. It said I needed an install disk of lion to fix. Since there is no disk I thought I would experiment and this is what I did.

         1) shut down my computer and then started it back up while holding down the alt key. (this should bring up two disk options to run your computer)

         2) I chose the second option (I believe it is called something like "recovery disk" but dont quote me on that. you want to select the one that is NOT Macintosh HD)

         3) It loaded and then gave me four choises of what to do. I clicked disk utility.

          4) From there I ran the verify disk scan again then clicked repair disk.

         5) I then ran the verify disk perrmissions scan and then repaired those as well.

         6) then I restarted my computer and spotlight indexed the computer (i let it do its thing without running any programs) once it was done my computer worked so much faster and for the first time I can say, I AM GLAD I HAVE LION! I hope this is a permenant fix. Please let me know if you try this and how it works for you

    Good Luck!!!

  • APierce24 Level 1 Level 1 (5 points)
    Currently Being Moderated
    Jul 24, 2011 12:02 AM (in response to earthman3)

    I am new to this forumn thing so I dont know if you get notifications that says I posted earthman. So just incase I am writing this as a reply to ou telling you to look at my above post and try that out.

  • GawainFromFrance Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jul 24, 2011 9:41 AM (in response to jswin)

    I  couldn't agree with you more!  After installing Lion, it's like I have gone back in time to when I saw a sluggish PC with Windows!  Ever single application I use is slower - the graphics are so jerky is horrible, saving files is OpenOffice is slow, surfing the web with Chrome you name it!

     

    Could this be due to severe disk fragmentation after two OS upgrades (Snow Leopard & Lion)?   To me this is doubtful as I have only used 25% of the available disk space but perhaps it is.   "Disk Utility" gives no information about disk fragmentation though.

     

    So what is it?  I have plenty of memory and disk space so there's only one thing left: CPU.  Did Apple forget to turn off debug mode?  Is it the new security enhancements which slow down every single OS function call?

     

    There's definitely something rotten in the state of Denmark...  And I really don't have the time and energy to find out what!

  • xraydoug Level 1 Level 1 (5 points)
    Currently Being Moderated
    Jul 24, 2011 11:23 AM (in response to jswin)

    I seem to have fixed the problem on my MBP i7. I shut down the computer and booted it while holding down the OPTION key. Then, select Recovery HD and click on the arrow. Select Disk Utility. When it's openend, select your Mac HD. I first clicked Repair Disk. As it went through this, it reported that my HD was fine. I then went to Repair Disk Permissions. It found a fair number of problems during this process and repaired them. After it finished, I restarted the computer and it seems much better now. I hope this process works for others.

  • flyinggfish Calculating status...
    Currently Being Moderated
    Jul 24, 2011 12:44 PM (in response to xraydoug)

    Thank you so much!  This seemed to have worked on my Early 2009 White Macbook.  Hopefully Apple will have an update soon to fix the slowness in other areas.  Did you notice your Preview even being slow?  Mine was terribly slow before I did was you said, xraydoug.  I was constantly getting the spinny wheel of death when I would switch through the pages too fast in Full Screen in Preview.  Fortunately, doing this helped a lot!  Thanks again.

  • GawainFromFrance Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jul 24, 2011 12:53 PM (in response to xraydoug)

    Well I was quite doubtful about this strange sounding procedure but in desperation I tried it!   It works!   I am now a happy camper!

     

    Thanks very much!

  • VDonovan Calculating status...
    Currently Being Moderated
    Jul 25, 2011 10:01 AM (in response to xraydoug)

    Hi xraydoug - Thanks for the info. Did exactly as you said but to no avail. Still very slow and getting the rainbow wheel nearly every time I browse. Prior to download everything was excellent. Looked at most other users who have now found their mac to be much slower when Lion downloaded. Will try and wait to see if apple come up with some solution. Thanks again

    Vic

  • brookieboy Level 1 Level 1 (0 points)
    Currently Being Moderated
    Jul 25, 2011 12:59 PM (in response to jswin)

    Hi Guys,

     

    I experienced loads of issues with my os x Lion install - my 2.53Ghx i5 was just crawling. I tried repairing disk permissions with little effect.

     

    Then i disabled quicksilver. I knew it wasn't compatible but since it has been running on my macs for 5 years I was reluctant to get rid for some reason.

     

    The SECOND that I quit it from the menu bar my computer was instantly more responsive.

     

    A complete guess would suggest that since it indexes the machine, and it's not set up to run under os x Lion yet, it was getting stuck and being a memory hog?

     

    Perhaps you haven't had quicksilver installed, but just try and disable all background running apps before you take the drastic step of reinstalling.

     

    good luck!


    Stuart

  • symm al-attas Calculating status...
    Currently Being Moderated
    Jul 27, 2011 9:07 AM (in response to APierce24)

    Hi APierce24, Thank you for your help ... your experiment does work for me as well ... yes, found some disk issue, repaired ... disk permission issue and repaired ... notice improved performance after i completed all the steps ... whew!! now the Lion is back!! enjoy  

  • john1117 Calculating status...
    Currently Being Moderated
    Aug 3, 2011 4:40 PM (in response to jswin)

    Lion OS is slow for me too.  2.4 Intel core with 2G of RAM.  Totally disappointed.  Will retreat to snow leopard.  First time they got it wrong. 

  • AlexGo Level 1 Level 1 (0 points)
    Currently Being Moderated
    Aug 6, 2011 12:37 AM (in response to jswin)

    Thanks for all the information here, I tried everything suggested still same problem. My Lion is extremely slow. When I restart the system, for the first 5 mines it works fast then it starts dragging and eventually it becomes so slow that I have to retart th esystem again. I checked on eh Activity Monitor to see what coud cause this and I can see abot 50% of the CPU is being used by DaemonManager. I wonder if this is what the cause is.

     

    Please Apple, find a solution for us!!

  • xraydoug Level 1 Level 1 (5 points)
    Currently Being Moderated
    Aug 6, 2011 2:30 PM (in response to AlexGo)

    After having wrestled with this for quite a while, repeating what I described above often, as the problem kept returning, I finally did a clean install of Lion. It has worked perfectly since. I think there is something funky in the upgrade installation path. I highly recommend installing Lion to a clean drive.

1 2 3 ... 20 Previous Next

Actions

More Like This

  • Retrieving data ...

Related Articles

Bookmarked By (10)

Legend

  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.