On Thu, Oct 28, 2010 at 01:13:55PM -0700, Shirley Ma wrote: > On Thu, 2010-10-28 at 12:32 -0700, Shirley Ma wrote: > > Also I found a big TX regression for old guest and new guest. For old > > guest, I am able to get almost 11Gb/s for 2K message size, but for the > > new guest kernel, I can only get 3.5 Gb/s with the patch and same > > host. > > I will dig it why. > > The regression is from guest kernel, not from this patch. Tested 2.6.31 > kernel, it's performance is less than 2Gb/s for 2K message size already. > I will resubmit the patch for review. > > I will start to test from 2.6.30 kernel to figure it when TX regression > induced in virtio_net. Any suggestion which guest kernel I should test > to figure out this regression? > > Thanks > Shirley git bisect 2.6.31 2.6.30 and go from here. -- 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
