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We obtained a PROX status display snapshot output for VSPERF Intel Pod 12, Node 4 (the Device Under Test, DUT, for the Long Duration and Cross-NUMA Node testing). This test used the configuration file in [opnfv@pod12-node4 ~]$ sudo ./prox -k -f ../config/irq.cfgcfg
where -k : Log statistics to file "stats_dump" in current directory
From PROX, which essentially measures the duration of a 1 nanosecond heartbeat, it is clear that some process is producing fairly frequent interrupts that cause delays in the 10-50 usec and 50-100usec range on core 6. Also, Core 11 has some interrupts in the 10-50usec range: it is important to re-check this result when the VSPERF deployment is running. In the iPerf3 testing below, the Max MTU packets used have 1.2144 usec serialization delay on the 10 Gbps links, so a 10 usec interruption would affect approximately 12 frames.
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