Yet another post, but I'm almost there and I promise to publish yet another piece of documentation.
Correct me if I'm wrong but reading the UNC_IIO_DATA_REQ_OF_CPU.MEM_WRITE.PART0 perf stat -e unc_iio_data_req_of_cpu.mem_write.part0 -C1 -r 3 sleep 1 should tell me what the rate of DDIO misses is (i.e. card wrote to memory instead of the LLC). Now on a system with a dual Xeon Gold 6126 and 2x X710 (one per NUMA node) this number is huge. Either I'm misinterpreting results or there's a large number of DDIO misses - pretty much all of my traffic! The average traffic per port, at the time of measurement, was around 250Mbit and the DDIO misses were like 215Mbit. Either DDIO does not work or I'm looking at the wrong counter. Either way let me know. -- Michal Purzynski _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel Ethernet, visit https://forums.intel.com/s/topic/0TO0P00000018NbWAI/intel-ethernet
