High CPU load - Ubuntu 14.04

Posted by watt on Ask Ubuntu See other posts from Ask Ubuntu or by watt
Published on 2014-05-30T09:30:33Z Indexed on 2014/06/02 9:52 UTC
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I noticed that sometimes when browsing (with other processes in the background), I get very high CPU load for the browser process (over 100%) and the computer becomes really slow. I tried switching from Firefox (with just a few extensions) to Chromium, but same thing happens without me visiting graphics-intense sites, flash sites or anything like that. I also noticed python or node (when running "make") produce the same high CPU load from time to time so this is not necessarily browser-related.

When I only have a browser open, it doesn't seem to happen and everything is fine in Windows 7.

I switched from unity to gnome3 with no effect.

Specs: lenovo w510 (4gb RAM, i7 q820 @ 1.73) + up to date Ubuntu 14.04 64bit. Printscreen: http://imgur.com/8MZJNKC

Do you guys have any idea why this might happen? Please let me know if there's other info you need.

Thanks!

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