"Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote on 05/05/2011 02:20:18 AM: > [PATCH 00/18] virtio and vhost-net performance enhancements > > OK, here's a large patchset that implements the virtio spec update that I > sent earlier. It supercedes the PUBLISH_USED_IDX patches > I sent out earlier. > > I know it's a lot to ask but please test, and please consider for 2.6.40 :) > > I see nice performance improvements: one run showed going from 12 > to 18 Gbit/s host to guest with netperf, but I did not spend a lot > of time testing performance, so no guarantees it's not a fluke, > I hope others will try this out and report. > Pls note I will be away from keyboard for the next week. I tested with the git tree (which also contains the later additional patch), and get this error on guest: May 11 08:06:08 localhost kernel: net eth0: Unexpected TX queue failure: -28 May 11 08:06:08 localhost kernel: net eth0: Unexpected TX queue failure: -28 May 11 08:06:08 localhost kernel: net eth0: Unexpected TX queue failure: -28 May 11 08:06:08 localhost kernel: net eth0: Unexpected TX queue failure: -28 ... The network stops after that and requires a modprobe "restart" to get it working again. This is with the new qemu/vhost/virtio-net. Please let me know if I am missing something. thanks, - KK -- 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
