[fr] En recherchant la cause d'une trop grande activité du processeur (et donc du ventilateur) de son MacBook, ne pas oublier d'afficher "tous les processus" dans Activity Monitor. Sinon, on risque de rater MozyBackup, par exemple, qui a piqué une crise et décidé d'utiliser 99.6% du processeur...
Remember how happy I was after solving my print-queue-related MacBook fan problem? Well, for the last few days, my fan has been noisy again. I had a vague suspicion the noise coincided with when I reactivated my Mozy account and endeavoured the get my computer backed up again remotely. However, the fan remained noisy even when Mozy wasn’t uploading or being active.
A friend of mine dropped by on IM to help me troubleshoot. I went through Activity Monitor, sorted the processes by CPU, and closed off those that were using the most ressources — to no avail. The highest process on the list was using 4.5% of CPU ressources, and iStat Nano (a dashboard widget I heartily recommend) was still telling me my fan was running at around 6200rpm and my CPU temperature was approaching 70°C. I could also see that the graph depicting CPU activity was showing it pretty active overall.
I bit at loss over what to do next. Clicking around in iStat Nano, I noticed that at the top of the process list there was MozyBackup, using up 99.6% of my CPU! The reason this process didn’t appear in Activity Monitor was that I was filtering “My Processes” instead of viewing all processes, and MozyBackup was running as root.
I killed (force quit) MozyBackup, and it popped up again. I killed it again. And again. By that time, my friend had unearthed this article about Mozy Backup going crazy, where I learned that MozyBackup coming back from the dead was normal (it’s a feature).
Thankfully, once I’d killed MozyBackup a few times, it started behaving normally again, and as you can see on the screenshop posted above, it’s now happily backing up my data without squeezing all the ressources out of my poor old MacBook, which is now quiet again.
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