LIBPFM - Online Linux Manual PageSection : 3
Updated : November, 2013
Source :
Note : Linux Programmer's Manual
NAMElibpfm_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.
MODIFIERSThe PMU does not support any modifiers.
AUTHORSStephane Eranian <eranian@gmail.com>
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Johanes Gumabo
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