Saturday, 21 November 2015

OSX high CPU UserEventAgent process

This one might save someone some searching :-)

I can't remember when it started happening but the UserEventAgent process started using 90 to 90% CPU so basically stealing one core all the time.

I thought it was related to a whole lot of things that turned out to be red herrings.

In my case it was TeamViewer causing it.  Uninstall TeamViewer and it spikes but generally sits at 0% rather than 95%.

Some Googling found one particular plug in related to certificate verification that the UserEventAgent uses caused their high CPU usage so maybe some Apps just make it go nuts.

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