[CentOS-virt] High CPU usage when running a CentOS guest in VirtualBox

Mon Jul 6 20:24:29 UTC 2009
Akemi Yagi <amyagi at gmail.com>

On Mon, Jul 6, 2009 at 10:22 AM, Sagi Bashari<sagi at boom.org.il> wrote:

> On my new box where I currently encounter the problem I tried
> installing the regular 2.6.18-92.1.22 kernel with the "divider=10
> clocksource=acpi_pm" parameters like you suggested, and also the old
> kernel-vm package, and in both of these attempts idle host CPU usage
> was at 50%. So it looks like although the symptoms are the same the
> cause is different.
> I guess it may be related to the newer version of VirtualHost, the
> different hardware or the different operating system. Any idea what
> else I can try to reduce the CPU usage on this host?

Because the issue is most likely related to VirtualBox and Windows
rather than CentOS, you may have a better chance of getting help by
going to the VB channels: