Performance on HDD and APFS

Discussion in 'macOS High Sierra (10.13)' started by neliason, Sep 26, 2017.

  1. neliason macrumors 6502

    Oct 1, 2015
    I have a mid 2011 iMac that boots from the HDD. I am wanting to upgrade, but I was wondering how High Sierra performed on spinning disks. Does anyone have any experience?

    Also, does anyone have any experience with converting a boot HDD to APFS. If so how was the performance? I know Apple doesn’t automatically convert. The only reason I can see not to is performance. But what about APFS would make it less performant on a HDD?
  2. neliason thread starter macrumors 6502

    Oct 1, 2015
    Just to follow up I upgraded. It took forever. But, once upgraded everything seems fine. I haven’t found performance to be an issue. In fact some things seem to perform better. There are definitely some bugs. But I’m happy I upgraded.
  3. BugeyeSTI macrumors 68030


    Aug 19, 2017
    Only problem or difference, (depends how you look at it) is my boot time has doubled...
  4. LarryJoe33 macrumors 65832


    Jul 17, 2017
    From memory, Sierra booted a little faster. I would say High Sierra takes maybe 30 seconds more. I don't reboot all that much. Nothing I can't live with. Not to mention, it's still pretty fast as compared to the spinner HDD days.
  5. EugW macrumors 603


    Jun 18, 2017
    My 2010 iMac with 2 TB hard drive (clean install) takes 50 s to boot High Sierra off APFS.
    My 2017 iMac with 1 TB SSD (upgraded from Sierra) takes 23 s to boot High Sierra off APFS.

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5 September 26, 2017