[Qemu-stable] CentOS 6.4 - Updating qemu-kvm

[Steve Amerige]

Hi all,

I've been running VMs with a stock CentOS 6.4 x64 server (512GB RAM, 64 CPUs, 8TB HD) with all of the Virtuallization packages installed and note that the qemu-kvm version is:

    qemu-kvm-0.12.1.2-2.355.0.1.el6.centos.2.x86_64

Because I see high cpu usage for qemu-kvm, I took note of pages:

    http://serverfault.com/questions/146922/why-is-idle-windows-vm-using-so-much-cpu
    https://www.centos.org/modules/newbb/viewtopic.php?topic_id=41567&start=0

The above mentions that qemu-kvm has improved performance after 0.12.4.

Is there any procedure to follow to update a CentOS 6.4 x64 system so that it uses more current virtualization software and delivers better performance?

Any instructions on how to do this are very much appreciated!

Enjoy,
Steve Amerige