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libpfm_intel_rapl

support for Intel RAPL PMU

#include <perfmon/pfmlib.h>

PMU name: rapl
PMU desc: Intel RAPL (Intel SandyBridge, IvyBridge, Haswell)

The library supports the Intel Running Average Power Limit (RAPL) energy consomption counters. This is a socket-level set of counters which reports energy consumption in Joules. There are up to 3 counters each measuring only one event. The following events are defined:

On all processors, the event reports the number of Joules consumed by all cores.
On all processors,
On all processors, th event reports the number of Joules consumed by all the cores and Last Level cache (L3).
On server processors, the event reports the number of Joules consumed n by the DRAM controller.

By construction, the events are socket-level and can only be measured in system-wide mode. It is necessary and sufficient to measure only one CPU per socket to get meaningful results.

The PMU does not support any modifiers.

Stephane Eranian <eranian@gmail.com>