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

Energy Meters on x86

NPund
New Contributor I
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Hi,

I wanted to know how Energy msr collect data? Where are the sensors located and how the power information is translated into energy counter?

Thank You

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Thomas_W_Intel
Employee
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For servers, "Energy Efficient Servers: Blueprints for Data Center Optimization" is a good source. The ebook is available free of charge at Springer.

For a reference implementation on accessing the power counters, checkout PCM on github.

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McCalpinJohn
Honored Contributor III
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I want to endorse Thomas' recommendation about the "Energy Efficient Servers" ebook.  I did a search for "RAPL" in the PDF file and found a lot of details in those sections that I did not realize that Intel had made public.   This includes specific documentation about the use of power models vs power measurement in different processors, which seems quite pertinent to the original question....

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