John Varela <email@example.com> wrote:
> My late 2009 27" iMac has been running slowly more or less since I
> upgraded to Sierra at version 10.12.1. The late 2009 model is the
> oldest iMac that supports 10.12. I thought the slow performance
> might just be because the old machine was having trouble keeping up.
> Since updating to 10.12.2 it's even slower, but that could be
> coincidence. It's almost to the point of being unusable.
I have the same Mac running Sierra. No slowness here, but have you had
the dreaded freezing issue, where your whole Mac locks up and you can
only move the moust pointer? There are monster threads about it on the
> Reinstalling 10.12 from the Recovery partition made no difference.
> Opening system.log from the Console results in "Unable to read the
The system.log is readable only by admin, and Console *still* doesn't
have an authentication feature that lets you read system.log files from
a non-admin account. Log in to an admin account to read it, or run this
Applescript from your non-admin account:
do shell script
"/Applications/Utilities/Console.app/Contents/MacOS/Console > /dev/null
2>&1 &" with administrator privileges
> suggest a way to fix this. I could reinstall 1Password. What about
> the other apps?
I don't know about your missing files. What does Activity Monitor report
when your Mac is running slowly to the point of being "unusable"?
Have you tried logging in to a different user account to see if the
slowness occurs there?
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