#132: Photoanalysisd consuming 100% CPU

What is photoanalysisd and what is it doing

Photoanalysisd is a...photo analysis daemon.

It's running some kind of facial + image recognition against the Photos library. Open Photos.app, select People on the left sidebar, and see how far it's gotten. It should say N photos scanned, M photos left to scan.

This seems to be the process that allows you to type in, say, "candles" and get all your photos with candles in it. Or so it would seem.

While Photos.app is open, photoanalysisd is suspended. While on battery power for a laptop, photoanalysisd is suspended.

Attachment doesn't show up very well below (white screenshot on white background) : but it's what should appear.


  1. Thanks. I was thinking that a made a big mistake installing Sierra.

    Surfdawaves on September 21, 2016, 05:27 AM UTC
  2. try NVRAM reset!!! this worked for me

    brant on May 12, 2017, 10:16 PM UTC
  3. what is NVRAM reset? I hve 4GB of RAM on a 2010 Mac book Pro and am regretting Sierra upgrade due to this photoanalysisd. Any tips on how to disable it permanently? or at least each time I boot?

    vina on June 29, 2017, 02:07 PM UTC
  4. NVRAM reset:
    1.Switch off your machine
    2. Turn it on and immediately Hold [P+R+option+command] for at least 20 seconds and you'll see it as if restarting for a couple of times.
    3. Release and switch on your mac

    But I think it's not working with my Mojave. Maybe I have to wait until the photo library is rebuilt?

    Sullivan on December 28, 2018, 07:06 AM UTC

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