Software Tuning, Performance Optimization & Platform Monitoring
Discussion around monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform monitoring

[PCM] pcm-pcie utility

Roman_D_Intel
Employee
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Adrian C. posted:

      Hi!

      Would you please document what pcm-pcie is actually reporting? I'd like to understand how DDIO is impacting my system.

      Thanks!

      -adrian

pcm-pcie outputs help on the counted metrics if run without parameters. It counts PCIE transfer events and outputs them, optionally with a bandwidth estimation per socket (-B flag). Non-zero PCIeItoM event counts indicate DDIO is active.

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Roman

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