hello, Le Mon, Mar 19, 2012 at 12:51:34PM +0200, Gleb Natapov ecrivait : > > Can you run the same test on Linux guest and on Windows vm with 1 cpu? > I see a lot of IPIs between vcpus. I run the same slowly fonction (to remember the guest is Windows2008R2 64bits). The report is here : http://www.roullier.net/Report/report-3.2-vhost-net-1vcpu.txt.gz and the response time is ~13s. thanks for tracking this trouble, David. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html