NAME
libpfm_intel_rapl - support for Intel RAPL PMU
SYNOPSIS
#include <perfmon/pfmlib.h> PMU name: rapl PMU desc: Intel RAPL (Intel SandyBridge, IvyBridge, Haswell)
DESCRIPTION
The library supports the Intel Running Average Power Limit (RAPL) energy consumption 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:
- RAPL_ENERGY_CORES
-
On all processors, the event reports the number of Joules consumed by all cores.
On all processors,
- RAPL_ENERGYC_PKG
-
On all processors, th event reports the number of Joules consumed by all the cores and Last Level cache (L3).
- RAPL_ENERGY_DRAM
-
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.
MODIFIERS
The PMU does not support any modifiers.
AUTHORS
Stephane Eranian <[email protected]>