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

Intel PCM, measuring RAM activity ? (data not energy)

Jeremie_Lagraviere
244 Views

Hi everyone,

I have a simple question about Intel PCM:

Is it possible to measure RAM data activity in the code ?

Same question with any of the ready-made tools provided in Intel PCM package ?

All I have seen so far, is RAM energy measurement.

Thanks in advance for your help :)

--Jeremie.

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Thomas_W_Intel
Employee
244 Views

Jeremie,

 

it is not entirely clear to me what you mean by "DRAM activity".

  • You can measure memory read and write traffic per channel with pcm-memory (but not per DIMM)
  • You can measure DRAM power saving states per rank with pcm-power.
  • You can measure DRAM self-refresh and PPD statistics with pcm-power

Does this suit your needs?

Kind regards

Thomas

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Jeremie_Lagraviere
244 Views

I tried pcm-memory.x it works well. I think I will take inspiration into the code to look precisely at what I want to do :)

Thanks a lot !

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