[CentOS-virt] Windows Xen VM's have high guest CPU usage and poor performance
pasik at iki.fi
Sat Jan 23 16:21:29 UTC 2010
On Fri, Jan 22, 2010 at 02:27:05PM -0500, Bill McGonigle wrote:
> On 01/22/2010 09:20 AM, Ryan Pugatch wrote:
> > Xen 3.4.2 may be an option, but I think I am going to pursue VMWare ESXi
> > at this point.
> Be careful with glibc versions with VMWare on CentOS. They haven't
> bothered to update for 5.4, and it's very crashy. You can get the
> libc.so from 5.3 and put it in its library path to help. Search on
> 'vmware glibc 5.4'.
> If you're willing to switch from Xen, you might also try out KVM. It's
> much easier to deal with than the VMWare tomcat/browser/browser-plugin
> monstrosity, especially if you use X. I've got a Win2K3 machine here in
> an old version of KVM (less optimized) and launching Firefox only
> briefly moved the CPU meter to 23%. IOW, it seems normal.
Also many people are running Windows 2003 VMs on Xen without problems.
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