Comments on: High CPU usage while running CentOS as guest on Virtualbox or VMware http://www.g-loaded.eu/2009/12/18/high-cpu-usage-centos-guest-virtualbox-vmware/ An open-source software and technology related journal Tue, 18 Jun 2013 13:13:01 +0000 hourly 1 By: Brian Nesbitt http://www.g-loaded.eu/2009/12/18/high-cpu-usage-centos-guest-virtualbox-vmware/#comment-12235 Brian Nesbitt Wed, 23 Dec 2009 19:32:57 +0000 http://www.g-loaded.eu/?p=1500#comment-12235 For some reason this worked for me. I have the same config, running VB on my host (windows 7 RC 64bit) and running centos 5.2 as the guest. With just the one guest running, my E6700 was always at least 40% used.

http://tech.shantanugoel.com/2009/07/07/virtualbox-high-cpu-usage-problem-solved.html

I created a dummy windows guest vbox and gave it 4 MB disk and 4 MB ram. I boot it from an empty CD and let it sit at the “FATAL: No bootable medium found! System halted.” screen.

As soon as I run this, my VirtualBox.exe process goes down 0% CPU. Whenever I don’t have it running, it hovers around 40% on my E6700.

Easy solution. Not sure why it works, but hope it helps!

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