Local and Remote Memory Bandwidth (LMB and RMB) metrics are 0

[bellalzohir]

          Hello,

I'm experiencing an issue where Local and Remote Memory Bandwidth (LMB and RMB) metrics are not displayed in Prometheus, despite proper configuration and troubleshooting steps taken.

Steps and observations:

1. Based on a suggestion, I disabled the Linux RDT driver via RESCTRL with export PCM_USE_RESCTRL=0 and unmounted resctrl to allow PCM direct access to RDT. However, this did not resolve the issue.
2. I attempted to create a custom monitoring solution that collects only the LMB and RMB using the output from pqos-msr and integrate this data with PCM data in Prometheus. Unfortunately, I encountered issues running PCM server and pqos monitoring simultaneously. The error message indicates that monitoring on core 0 is already started.

I would appreciate any insights or potential solutions

Thank you for your assistance.

Originally posted by @bellalzohir in #761 (comment)

[rdementi]

please see my responses in the original issue