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 -- 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