Will macOS Sierra make my Mac run faster or slower?

Discussion in 'macOS Sierra (10.12)' started by Beeking, Aug 12, 2016.

  1. Beeking macrumors newbie


    Aug 12, 2016
    Hi. I Upgraded my MBP (2012), from El Capitan to Sierra and it slowed my computer down to the point where it became unusable. I repaired the permissions, and even reinstalled El Capitan but it didn't help. My MBP is crawling and I'm hoping someone can walk me through a solution. Need help.

    What can cause this?
    - Also: I reset SMC and PRAM after update: http://techsviewer.com/macos-sierra-slow-fixes/
    - I turned off FileVault encryption due to this site.

  2. leman macrumors G3

    Oct 14, 2008
    Did you try submitting a report to Apple?
  3. grahamperrin macrumors 601


    Jun 8, 2007
    With a 2012 Mac there'll be no tangible benefit from disabling that feature.

    If you like encryption, allow it.

    Please, with what? Disk Utility no longer attends to permissions.

    We'll need more information.

    What's the model identifier of the Mac? You'll find that and other information (memory, connected devices, types of connection and so on) in System Information.
  4. Ritsuka macrumors 6502a

    Sep 3, 2006
    Do you have an HD or SSD? If you have a normal disk a clean install will help a lot, your disk probably is so fragmented that the operating system is in little pieces on the whole disk.
  5. grahamperrin macrumors 601


    Jun 8, 2007
  6. MacGizmo macrumors 65816


    Apr 27, 2003

    To verify permissions: sudo /usr/libexec/repair_packages --verify --standard-pkgs /

    To repair permissions: sudo /usr/libexec/repair_packages --repair --standard-pkgs --volume /

    But let's be honest, repairing permissions ACTUALLY does about 0.00000325% of what people THINK it does. For the most part, logging out/in or restarting is what actually solves the problem that they think repairing permissions did.
  7. grahamperrin macrumors 601


    Jun 8, 2007
    /usr/libexec/repair_packages does not exist. 16A294a.
  8. wingmanmac, Aug 21, 2016
    Last edited: Aug 21, 2016

    wingmanmac macrumors member


    Aug 4, 2007
    Have anyone tried a real speed comparison on el cap and sierra? Same mac, same programs, apps, finder etc? I have used the betas on an 2009 imac, and i would say everything "feels" slower with sierra. If there aren't any under the hood stuff that is going to be vital, or make the hole OS faster than el cap, I think I wont upgrade on my studiomacs. Every single thing apple is highlightning about this release is COMPLETLY uninterresting for me, so there just got to be something else about it. Apples statement this is a major upgrade is pure marketing in my opinion, OSX 5 leopard, THAT was a major upgrade, sierra is not.
  9. leman macrumors G3

    Oct 14, 2008
    Well, subjectively, the UI feels more responsive for me, objectively, browser is significantly faster and the compiler tool chain produces faster code. It is very possible though that some legacy apps will run slower, especially those which are not following Apples dev guidelines.
  10. bradlivesintheusa macrumors newbie


    Jan 24, 2017
    Denver, Colorado
    Hello. I'm considering updating MY 2012 MPB and wondered if you ever got your machine running. Your tale made me want to NOT upgrade. : )

    Thanks for sharing your advice.



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