Hello everyone,
I'm currently carrying out RFC2544 based tests on a server running hundreds of applications which forward back a matching number of traffic flows generated by a HW traffic generator. These applications are running in Linux containers, bridged altogether by a single OvS bridge instance (using the DP kernel module). However a significant packet loss happens at the very beginning of every run beyond a certain line rate, somehow invalidating the tests. When slowly increasing the load by hand, from a minimum to the target rate, no such loss can be seen. Suspecting an initial delay due to the need to fill the microflow cache, I tried increasing the number of handler threads and their priority without success. Is this the expected behavior or could it be related to misconfiguration? What are the best practices for testing OvS, are there any better approaches? Thank you. Best regards, Marco
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