It was also brought to my attention that overriding the virtio queue size mitigates the issue:
http://pastebin.ubuntu.com/24087865/ I believe that working with vhost queues, if supported by openvswitch+dpdk user is using, would also mitigate the issue with no code change (since it would parallelize the TX flush). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1668829 Title: Performance regression from qemu 2.3 to 2.5 for vhost-user with ovs + dpdk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1668829/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
