Hi Rafael, Do you find the root cause for this bug? From the discussion, it seems Qemu issue, but i am not sure whether it is fixed or not.
We are using qemu 2.9.1, and also observed this issue. scenario: 1. VM A and VM B are on different ovs+dpdk node. 2. VM A scp file to VM B.If the delay between VM A and B is large, say 30ms, we observed packets loss on VM rx direction (from ovs+dpdk, it is tx stats drop). Note we observed the throughput is slow, only about 3MB/s.We already change the rx_queue_size to 1024. We can not understand why VM can not handle such low traffic. Thanks. Zhike -- 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
