20 Feb
2012
20 Feb
'12
11:52 a.m.
On 02/19/2012 09:26 PM, Bob Puff wrote:
Immediately when I was installing stuff, I could tell this new system I just built was not nearly as fast as the first one. I ran some CPU and disk benchmarking programs, and saw that while the CPU stuff tested similarly, the disk thruput was much different... Down-right poor in one of the guests!
If you use Red Hat's "virt-install" to set up a guest, you can specify the --os-type and --os-variant. If you specify the a variant that supports virtualized IO (such as type: linux and variant: rhel5.4 or rhel 6), the guest's disk and network IO will have much better throughput. You'll want to look for those options in whatever front-end you're using, or use virt-install.