I know how to read statistics about the configured network interfaces, for example via cat /proc/net/dev.
Is there a way to read similar byte counters of PCI or PCIe traffic?
Apparently, according to https://www.intel.com/content/dam/www/public/us/en/documents/design-guides/xeon-e5-2600-uncore-guide.pdf
there should be a metric PCIE_DATA_BYTES, traceable for example via ucevent: https://github.com/andikleen/pmu-tools/blob/master/ucevent/README.md
If I run
ucevent.py -I 2000 CBO.PCIE_DATA_BYTES sleep 10
I obtain
unknown event CBO.PCIE_DATA_BYTES
I tried this on two servers:
Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz
Intel(R) Xeon(R) CPU E5-2640 v4 @ 2.40GHz
Any suggestions or help please?
