On Tue, Feb 01, 2011 at 02:33:28PM -0500, Brian K. White wrote: > On 2/1/2011 12:39 PM, Orion Poplawski wrote: > >I'm just starting to take a look at guest networking performance and am > >a little disappointed. I'm comparing two setups: > > > >Host: Windows Server 2008 R2 Hyper-V > >Host: CentOS 5.5 x86_64 kvm running libvirt > > First thing is to stop unfairly comparing things that don't even > claim to do the same job. hyper-v is a hypervisor, while kvm is not, > xen is. Hi Brian, I don't want to sound picky, but I did a quick search in the KVM documentation and I couldn't find what category KVM is. I really thought it was playing the same league as Xen. That's from the KVM faq: http://www.linux-kvm.org/page/FAQ#What_is_the_difference_between_KVM_and_Xen.3F Xen is an external hypervisor ... On the other hand, KVM is part of Linux and uses the regular Linux scheduler and memory ... I just found this Linux Journal article: http://www.linuxjournal.com/article/9764 KVM is a unique hypervisor. ...