4

After I installed Yosemite I got a notice saying that performance may suffer until my Mac is optimized. What exactly does it mean and do I have to do anything?

8

It's updating the Spotlight index.
There's nothing to do, just let it happen.

  • It may also be related to Photo Library Migration Utility which I see is an active process consuming some CPU during this time (Note I did not intentionally initiate any photo migration of any kind after installing Yosemite on top of Mavericks. Whatever this is, it appears to be an automated response to upgrading. I also see mds and mdworker processes which jibes with Tetsujin's answer.) – Todd Ditchendorf Apr 24 '15 at 15:21
  • BTW - Photos didn't exist when this answer was written. – Tetsujin Apr 24 '15 at 15:59
  • Yes, the install I referenced above was a 10.10.3 install. 10.10.3 is the first version of Yosemite with the new Photos app, and the Photo Library Migration Utility appears to be related to this new app. So my comment about PLMU applies only to 10.10.3 and later. – Todd Ditchendorf Apr 24 '15 at 16:28
-2

Try using below links, both worked well for me

  • While these are useful tips, they don't really fit into the scope of the question. – CyberSkull Mar 6 '15 at 6:21

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