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Matlab HIGH cpu usage even when idle

Asked by ondrej on 11 May 2012
Latest activity Commented on by Christoph on 5 Feb 2014

The CPU load is very high all the time. Even fresh after starting matlab with no variables and no programs running.

Its about 35%-45% all the time. Here you can see the trace in time of Matlabs cpu load:

Setup: r2012a on win7 64bit, 8gb ram, 200gb free disk space,intel U9400 2core cpu(laptop),java Version 6 Update 31.

What can be causing this?

thx

6 Comments

German on 7 Apr 2013

For the sake of people who might be having the same issue I finally solved it. It was the JxBrowser renderer, the issue starts after the first time I open a help window. In order to use the HTML renderer I included

 com.mathworks.mlwidgets.html.HtmlComponentFactory.setDefaultType('HTMLRENDERER');

on my startup.m and that stopped the high cpu usage.

Walter Roberson on 7 Apr 2013

Thanks for the update.

ondrej

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