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matlab 2014b on Yosemite, high CPU%

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Qiliang
Qiliang on 21 Oct 2014
Commented: Jaime Batiz on 28 Jul 2015
Hi there,
I just upgraded my OSX to 10.10 and installed the 2014b. But the matlab uses about >100% of CPU after startup, and sometime it goes up to 500%..... and the matlab freezes up.
I do notice that on the bottom of "current folder" dialog, it says " getting status for files " and it keeps doing it.
Does any of you guys know what could have caused this problem?
Thanks,

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Answers (2)

Bruno Pop-Stefanov
Bruno Pop-Stefanov on 22 Oct 2014
The getting status for files message appears because of the Source Control integration in the Current Folder browser. Try disabling Source Control if you are not using it.
To disable Source Control:
  1. Click Preferences in the Home tab of the MATLAB Desktop
  2. Go to MATLAB > General > Source Control and select None
  3. Click OK
Now restart MATLAB and you shouldn't see a spike in CPU usage anymore. Let me know if you still do.

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Bernie
Bernie on 30 Oct 2014
I am still seeing the same high CPU usage and ~56GB of RAM usage (my computer only has 16GB...). I got the same issue using R2012a on Mac OS 10.10 Yosemite, but turning off source control seems to have resolved that problem. The high CPU usage still persists in R2014b. I have restarted Matlab and my computer multiple times. And done a RAM reset.
TKeenan
TKeenan on 21 Feb 2015
Fantastic Bruno - Thanks! I had the same problem - very high CPU usage (500%) on 2014b (and 2015a), but no problem with 2013b or 2014a. OS Yosemite. Noticed that 'getting status for files' was showing in the folder window during the periods of high CPU usage.
Following the steps above seems to have solved the problem.
Jaime Batiz
Jaime Batiz on 28 Jul 2015
Turning off Source Control didn't help me. I'm working with a small .mat file (172KB) that contains a structure of structures, several levels deep. Just by loading it, and inspecting a structure with the Variable Viewer window, and then moving on to other applications makes Matlab's CPU % jump to 100%+ and slows it down to the point that it is unusable after 30 minutes (or so) of inactivity.

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Anthony
Anthony on 21 Nov 2014
Hi all,
Same story here w/ updating to yosemite with r2014b - slow as molasses. This is ridiculous, particularly with any plots. Disabling source control helps to a minor extent.
Are there any work arounds or fixes?

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