Hi- I am chasing a problem with intermittent delays in passing packets between ports of a switch (about 1 second delay). I did some brute force debugging with printks and saw an occasional 1 second delay in obtaining a flow from user-space into the kernel. Most of the flows are loaded with little delay, about 1% of the time I see the 1 second delay.
I have a single instance of an OVS bridge with 2048 ports. About 200 of the ports are exchanging packets. The traffic flow is very simplistic, a single port only send packets to one other port, for example port 1 only exchanges packets with port 2, port 3 exchanges with port 4... I am creating only the minimal flows that I need for my test using ovs-ofctl add-flow commands. I tried setting a -20 nice value for ovs-vswitchd and ovsdb-server with no change in the results. Anyone have an idea what the problem could be or how I might troubleshoot this? ovs-vsctl --version ovs-vsctl (Open vSwitch) 2.3.1 Compiled Dec 18 2014 12:42:31 DB Schema 7.6.2 -------------------------- uname -r 3.19.0 _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
