Incredibly Slow Finder

Discussion in 'OS X Yosemite (10.10)' started by Emiljabo, Sep 4, 2015.

  1. Emiljabo macrumors newbie

    Joined:
    Dec 16, 2013
    #1
    Hi guys,

    This has been an issue for me for a while now. Why is the finder so incredibly slow when opening folders with lots of image files in it. Moving small files around from folder to folder. It's as if the finder starts off ok, but then after scrolling down the files in a folder it grinds to a halt and it becomes really laggy and the spinning beachball shows it's face. I often have to just force quit the finder just to kick it up the backside and start again.

    Surely a computer with the my specifications should be able to handle general finder operations like looking at files. This never used to be a problem before and the finder was a breeze to work with.

    Does anyone know why this might be causing this and if there are any fixes out there on how to solve it.


    iMac (Retina 5K, 27-inch, Late 2014)
    Yosemite 10.10.5
    4 GHz Intel Core i7
    16 GB 1600 MHz DDR3
    AMD Radeon R9 M295X 4096 MB

    Thanks. :)
     
  2. BrianBaughn macrumors 601

    BrianBaughn

    Joined:
    Feb 13, 2011
    Location:
    Baltimore, Maryland
    #2
    There are many possible causes. Some have simple fixes.

    What have you found out so far?
     
  3. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #3
    You can often get a clue about what causes real slowdowns, by keeping your Activity Monitor open. When the finder seems slow, check in both the CPU and Memory tabs. You can change the sort so that you see the most activity at the top of the list. Make sure that the Activity Monitor window is set to show All Processes, and not just My Processes.

    You also didn't say if there is improvement after your restart your Mac (not just force quit the Finder)
     
  4. Partron22 macrumors 68000

    Partron22

    Joined:
    Apr 13, 2011
    Location:
    Yes
    #4
    Are you signed into every cloud service under the sun?
    Those're going to want to know where you're moving your files from and to.
     
  5. Emiljabo thread starter macrumors newbie

    Joined:
    Dec 16, 2013
    #5
    Hi guys, thanks for your replies.

    So far I have found no fixes as I didn't know what might be causing it. I'm not signed up to loads of cloud services. I haven't tried restarting the Mac yet as I know this will improve the situation. It's as if it runs out of memory whislt performing Finder tasks.

    I checked the activity monitor whilst I was having slowing down, laggy, beachball issues and the following is a random selection of the highest culprits in the CPU tab:
    • WindowServer - 90.5%
    • Finder - 102.0 %?
    In the memory tab it was:
    • Kernal Task - 1.48 GB
    They were the ones that shot to the top of the list as soon as I was looking through folders and using the up and down keyboard buttons to browse the files. Image files around 8mb in size each. The thing is it also does it with .jpg files that are really small too, like under 300k. Any ideas? :)
     
  6. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #6
    Create a new user, reboot and login to the new user. Is finder slow in the new user account?
     
  7. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #7
    Those few items that you show from your Activity Monitor are pretty normal, and are the main services that the Activity Monitor should show close to the top. Other services down the list may be more relevant.
    When you are looking at the Activity Monitor, what does the Memory Pressure show? Green? Yellow? Red?
    How about Swap Used - and Compressed memory?

    I see the memory and CPU sometimes go a little wonky with Yosemite. It settles back down after an OS X reinstall. That's not something that I would have expected a few years ago as a relatively common (for me) troubleshooting step.
    But, maybe about once a month, it DOES help, and takes less than 30 minutes to complete. I'm not sure if I would recommend it as a routine step, but it does work for me. I keep Yosemite installer in current version on a USB flash drive.
    BTW, I see the need for a reinstall less often in El Capitan, so maybe that's something to look forward to.
     
  8. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #8
    If it is only when you are looking through folders of images then I'll bet it is just building many thumbnails to show you?
     
  9. Fishrrman macrumors G3

    Joined:
    Feb 20, 2009
    #9
    OP wrote above:
    "I checked the activity monitor whilst I was having slowing down, laggy, beachball issues and the following is a random selection of the highest culprits in the CPU tab:
    WindowServer - 90.5%"

    If it was me, I'd open up Activity Monitor, click the "CPU" tab, select the "WindowServer" process, and kill it.

    And see what happens next...
     
  10. Partron22 macrumors 68000

    Partron22

    Joined:
    Apr 13, 2011
    Location:
    Yes
    #10
    Console error logs are also often interesting to watch under laggy/beachbally conditions.
     
  11. Emiljabo thread starter macrumors newbie

    Joined:
    Dec 16, 2013
    #11
    Thanks for your replies guys.

    I agree that it is likely slowing down due to the need to create previews of the image files, but surely it should not be that slow and difficult a process for the operating system to handle to the point whereby it becomes useless? It was never like this before. It even hangs when I then go to copy or move one of the files. The whole process just grinds to a halt which is quite frustrating seeing as all I am doing is doing seemingly easy tasks like looking at files and moving them.

    OS re-installs seems like a bit of a drastic measure which surely can be solved by other means? I just hope that future updates to the OS rectify this issue.

    I'm a bit disappointed having spec'd up the Mac that I wanted so that it would be the best that was offered only for it to not be able to handle seemingly mundane tasks like looking at files and moving them around. :(
     
  12. DeltaMac macrumors 604

    DeltaMac

    Joined:
    Jul 30, 2003
    Location:
    Delaware
    #12
  13. Emiljabo thread starter macrumors newbie

    Joined:
    Dec 16, 2013
    #13
    Thanks DeltaMac, could you explain what the difference and benefit is of using the 10.10.5 combo updater if I already have 10.10.5 installed. :)
     
  14. !!! macrumors 6502

    !!!

    Joined:
    Aug 5, 2013
    #14
    The Combo update installs all modified files from 10.10 to 10.10.5. It's like reisntalling OS X, but just the updated files. The update from the App Store (called a "Delta Update") sometimes causes errors.
     
  15. Emiljabo thread starter macrumors newbie

    Joined:
    Dec 16, 2013
    #15
    Thanks for explaining. So even if I have 10.10.5 already installed it will allow me to complete the combo update? :)
     
  16. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #16
    yes
     
  17. Partron22 macrumors 68000

    Partron22

    Joined:
    Apr 13, 2011
    Location:
    Yes
    #17
    Oh yes, I rebuild the Launch Services Database every once in a while.
    You can see how manky your DB has gotten by using contextual menu "Open With" and seeing how many entries for, say "Preview", show up.
    The AppleScript is:
    Code:
    -- Rebuild Launch Services DB
    -- BP2013
    -- Modified from:
    -- Adam Bell 2013
    -- http://macscripter.net/viewtopic.php?id=40534
    
    say "begin"
    set flushLaunchSvcDB to "/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user"
    do shell script flushLaunchSvcDB
    delay 1
    do shell script "killall Finder"
    say "done"
     
  18. Traverse macrumors 603

    Traverse

    Joined:
    Mar 11, 2013
    Location:
    Here
    #18
    I have a very slow Finder under 10.10.5 on a 2013 15" RMBP as well.

    I can't wait to clean install El Capitan.
     
  19. Jennism macrumors member

    Jennism

    Joined:
    Aug 14, 2015
    Location:
    AZ
    #19
    I've noticed this too with Finder. If I was dealing with just photo files I'd understand it needing to load the previews, but it does this to me too with any file type. Even those with no previews at all. I thought it might have had something to do with having XtraFinder installed, but even when I turn it off and use Finder as is, it still functions slowly. I thought it would get better as I recently installed more ram. I didn't have these issues with Mavericks as a clean install with less RAM and it only became an issue since I updated to Yosemite. Let me know if installing a combo update helps. As I might try it too.

    I've noticed if I have the Photos app open at the same time as Finder, it doesn't let me do any moving files around and I also am not able to empty the trash. As soon as I close Photos app it works fine.

    Generally moving one or a few files it's fine for me. But moving around Finder it is incredibly slow to open folders much of the time. Even with no other apps open.
     
  20. redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #20
    @Emiljabo I've noticed this issue in Yosemite Finder as well, especially bad on slow network drives with lots of large image files as it attempts to display the thumbnails. El Capitan Finder on my 13" rMBP is much better.
     
  21. Jennism macrumors member

    Jennism

    Joined:
    Aug 14, 2015
    Location:
    AZ
    #21
    Is their a way to prevent certain file types from displaying thumbnails?
     
  22. redheeler macrumors 603

    redheeler

    Joined:
    Oct 17, 2014
    #22
    Yes. Show View Options (Command-J) and uncheck Show icon preview.
     
  23. Jennism macrumors member

    Jennism

    Joined:
    Aug 14, 2015
    Location:
    AZ
    #23
    That's awesome and all but that is specific to an entire folder or folder system. Can't I set it to a specific file type? Such as just my CR2 files throughout the system?
     
  24. Emiljabo thread starter macrumors newbie

    Joined:
    Dec 16, 2013
    #24

    Thanks, IT's good to know that El Capitan is better, I'll wait and see if it rectifies the issue on my system. Sadly the image files I am mentioning are on my main HD. :(
     
  25. Ebenezum macrumors 6502a

    Joined:
    Mar 31, 2015
    #25
    I noticed clear slow down in Finder after 10.10.4 update, 10.10.5 didn't help and it also happens in external hard drive with clean instal of 10.10.5. I suspect Apple broke something in 10.10.4, before Finder was much faster in Mac Mini 2014.

    While El Capitan is better I am going to wait several updates before I install it into Mini, after Yosemites bugs I am not taking any changes!

    It means I have a dilemma, I absolutely detest Yosemite but based on my beta testing of El Capitan I dare not to install it into Mini because of bugs... I am considering selling the Mini and purchasing older model so I can use Mavericks which works much better.
     

Share This Page