Re: [libvirt] qemu-kvm networking speed

[Daniel Veillard <veillard redhat com>]

On Thu, Mar 12, 2009 at 04:35:22PM -0400, Bryan_Coleman dart biz wrote:
> When I run iperf according to 'top' my CPU % does not even go above 2%. 
> 'virt-manager' CPU usage did not go above 25%.
> 
> Thoughts?

  Then it sounds like a bug, if the system is idle while process/domain
are trying to push data on that very system and blocked on processing
this sounds like an I/O scheduling error or something is blocking in
your test.
  An interesting point would be to test with virtIO between 2 domains
hosted on the same machine, to make sure it's not the actual networking
access which is the limiting factor, and would provide an interesting
data point.

Daniel

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