My iMac running High Sierra has become painfully slow.
I suspect photoanalysisd, as it's using a lot of CPU time, but I can't figure out how to get rid of it.
There's at least one other question (What is "photoanalysisd" and why is it using 77% of my CPU?) here about photoanalysisd, but my scenario is different and none of the suggestions in the other thread were helpful to me.
Looking in the Console log, I see odd errors for photoanalysisd, e.g.:
"seekAndRead -- Input/output error" "error: (266) I/O error for database -- CLSBusinessCategoryCache.sqlite. SQLite error code:266, 'not an error' errno:5" "error: -executeRequest: encountered exception = I/O error for database at ... CLSBusinessCategoryCache.sqlite. SQLite error code:266, 'not an error' errno:5"
Error code "not an error" -- huh?
Using the Terminal, I've tried all of the following:
sudo launchctl remove com.apple.photoanalysisd sudo launchctl kill -TERM gui/$UID/com.apple.photoanalysisd launchctl disable gui/$UID/com.apple.photoanalysisd launchctl kill -STOP gui/$UID/com.apple.photoanalysisd launchctl kill -TERM gui/$UID/com.apple.photoanalysisd
BUT photoanalysisd is still running, according to the Activity Monitor. Even after I issue commands to kill the process(!?), it's still there. Of course it also comes back when I restart, and slows the machine horribly again.
First question, then: why don't these commands get rid of photoanalysisd?
Next, I have tried starting in safe mode, but it makes no difference: the iMac is still unusable, until I issue commands to kill photoanalysisd.
Also, the screen updates are incredibly slow in safe mode. The desktop appears very slowly and is painted in bands like venetian blinds opening up from the bottom. Never seen this before.
Again, there is nothing in the Activity Monitor that is obviously eating up CPU or memory. Activity Monitor consistently reports over 90% idle, though the system is beachballing constantly.
Finally, I have already re-installed High Sierra once, but it made no difference.
I really don't care if the Photos app does the person recognition thing or not. I just want my Mac to be useable again.
EDIT: 25 days later, I still have no solution to this. My basic question about photoanalysisd (above) remains unanswered.