Extremely slow performance with Sierra!

Discussion in 'macOS Sierra (10.12)' started by yalag, Sep 11, 2016.

  1. yalag macrumors 65816

    Joined:
    Nov 18, 2007
    #1
    Not sure what is going on, but my Mac Pro (2014) is really slow after the GM update. I can't really identify any specific process from activity monitor. It's as if everything is just slower across the board.

    I've tried resetting the SMC and PVRAM and it helped a bit. But it's still noticeably slower than before.

    It's most apparent when using the UI. It's sluggish just doing simple UI gesture, like scrolling a list, or clicking the fan in the dock etc.

    Another great example is login. If I have 5-10 apps opened since last session, it's not uncommon now to take 10 minutes before the system is "logged in" and have everything loaded and ready to use.

    It's almost as if, I lost 50% of my CPU power.

    Any ideas?
     
  2. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
    There is no 2014 Mac Pro, do you mean MacBook Pro?
     
  3. yalag thread starter macrumors 65816

    Joined:
    Nov 18, 2007
    #3
    Sorry I forgot the exact year but basically the trash can latest version.
     
  4. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #4
    I see, then something is very wrong. Do you install Sierra on the internal SSD? Or an external HDD?
     
  5. m4v3r1ck macrumors 68020

    m4v3r1ck

    Joined:
    Nov 2, 2011
    Location:
    The Netherlands
    #5
    Is Spotlight indexing? That can slow down the normal UI gestures quite a bit! Check your Spotlight preferences (Preferences Pane) and see what drives (internal/external) are being indexed. You can also exclude drives from the Spotlight index.

    Cheers
     
  6. yalag thread starter macrumors 65816

    Joined:
    Nov 18, 2007
    #6
    I installed it in the internal SSD. What is the best way to troubleshoot this? Is there a safe mode I can boot into?
     
  7. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
    Location:
    Hong Kong
    #7
    Yes, you can hold Shift during boot to enter safe mode.
     
  8. blasto2236 macrumors 6502a

    Joined:
    Nov 4, 2012
    #8
    This. Spotlight indexing will definitely slow down your system after an update, sometimes even for a few days. How long has this been ongoing?
     
  9. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #9
    Spotlight indexing is just very light loading for the 2013 Mac Pro, even the baseline config. Unless there is something wrong in hardware (e.g. failing SSD), then the extreme huge amount of error correction operation may significantly slow down the whole system.
     
  10. Matt Leaf macrumors regular

    Joined:
    Feb 5, 2012
    #10
    I noticed a photos process in the background, my guess is its to create the 'memories' feature.
     
  11. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #11
    Yes, it is. But it only take around 200% CPU usage. Not even close to half of the low end Xeon's capacity, should not cause this extreme slowness on the nMP.
     
  12. grahamperrin macrumors 601

    grahamperrin

    Joined:
    Jun 8, 2007
    #12
    Does kernel_task use more than expected?
     

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