Process using 98% CPU

[Meldar]

This has never happened to me before.

I booted up my MacBook as always and the cooling fan started up as soon as I logged in and was blowing pretty strong. It caught me off guard since, having just logged in, I had nothing processor-intensive running yet.

I checked my Activity Monitor and it said that a process called "wrapper-macosx-u" was hovering between 95 and 98% CPU. I'd never heard of that before and presumed it was an anomaly as my CPU was never used that much when I first logged in.

It didn't get in the way of running Photoshop and iTunes but eventually I got tired of the fan and worried it would overheat. When I restarted the computer I checked Activity Monitor again, expecting to see that process there but using less CPU...but it wasn't there at all.

I'm at a complete loss. I have no idea what this process is or what it was doing hogging my CPU. If anyone has any ideas that'd be nice.

 

[Eidorian]

You might want to switch Activity Monitor to hierarchical view and see what spawns the "wrapper-macosx-u" process. I have a feeling it's being run by your user as well.

 

[Meldar]

Yeah...that'd be great advice to follow up if the process was still there. That's why I'm a little confused - it's gone completely.

Although, I did view a sample of it. It had a lot of "child" but no "parent" visible.

And my user is "jimmy" - it was being run by "jimmy", not "root" or anything, if that helps.

 

[Eidorian]

Google only turned up one mention of it over at MacBidouille. There wasn't anything beyond what I've already mentioned.

 

[Meldar]

That's extremely odd. I'll just have to see if it comes up again and then do further research to see if it's possibly something malicious; if it doesn't come back I'll just dismiss it as an anomaly and forget about it.

Thanks for trying to help, appreciated.

 

[projectxz2005]

I ran into this curious issue too. wrapper-macosx-u loads whenever freenet (something I downloaded yesterday) is started. If you don't have this, maybe it is due to some other java program that you're running? (freenet is java).