On 10-11-12 09:57 AM, Todd Deshane wrote:
I'd be happy to run some benchmarks. I've got some identical (if humble) machines... Would you want just a Xen vs. KVM? If so, what parameters or setup options would provide the best apples to apples comparison?
The machines are;
- quad core athlon II x4
- 4gb ddr3
- 1x 7200rom 500GB drive
- Fedora 14, stripped (but identical) installs
If these are too low end for useful results, let me know. Otherwise, I'll fire up Xen under Michael's 2.6.32-25-172 kernel with the stock 4.0.1 hypervisor on one machine, and can use the stock KVM/QEMU setup for another.
Assuming all is fine, would it matter whether the VMs were F14 vs CentOS 5.5?
I was thinking 3x runs each of;
- bonnie++
- Recompile Michael's kernel
- ?? Please make suggestions
There is also an ongoing discussion about Xen vs. KVM performance on the CentOS virt list
http://lists.centos.org/pipermail/centos-virt/2010-October/002074.html
One thing I can say already, I've been unable to get Fedora 14 to start as a KVM VM with more than one CPU. I'm having to rework my test bed to use RHEL 6.0 now that it's out and hope that it solves the problem. :)