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NAME | SYNOPSIS | DESCRIPTION | MODIFIERS | AUTHORS | COLOPHON |
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
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 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.
The PMU does not support any modifiers.
Stephane Eranian <eranian@gmail.com>
This page is part of the perfmon2 (a performance monitoring library)
project. Information about the project can be found at
⟨http://perfmon2.sourceforge.net/⟩. If you have a bug report for this
manual page, send it to perfmon2-devel@lists.sourceforge.net. This
page was obtained from the project's upstream Git repository
⟨git://git.code.sf.net/p/perfmon2/libpfm4⟩ on 2017-07-05. If you dis‐
cover any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
November, 2013 LIBPFM(3)