How to use PCM to monitor UPI bandwidth?

[jasonneverstop]

How to use PCM to monitor UPI bandwidth?

[ogbrugge]

Hi,

UPI bandwidth can be measured with the pcm binary, just run it.
If you do not want the core metrics, run pcm with -nc
If you do not care about the system aggregation run pcm with -nsys
You can combine these options to only see socket level information
You can add -csv=filename to output to a csv file.

This info is all available in the pcm --help output.

Hope this helps.

[jasonneverstop]

thank you.
As shown in the image, is the local access ratio of memory for SKT0 91%? The remote access ratio is calculated as 1-91% = 9%？

[rdementi]

yes, correct