1LIBPFM(3)                  Linux Programmer's Manual                 LIBPFM(3)
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NAME

6       libpfm_intel_rapl - support for Intel RAPL PMU
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SYNOPSIS

9       #include <perfmon/pfmlib.h>
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11       PMU name: rapl
12       PMU desc: Intel RAPL (Intel SandyBridge, IvyBridge, Haswell)
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DESCRIPTION

16       The  library  supports  the  Intel  Running  Average Power Limit (RAPL)
17       energy consumption counters. This is a  socket-level  set  of  counters
18       which  reports energy consumption in Joules. There are up to 3 counters
19       each measuring only one event. The following events are defined:
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21       RAPL_ENERGY_CORES
22              On all processors, the event reports the number of  Joules  con‐
23              sumed by all cores.
24               On all processors,
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26       RAPL_ENERGYC_PKG
27              On  all  processors,  th event reports the number of Joules con‐
28              sumed by all the cores and Last Level cache (L3).
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30       RAPL_ENERGY_DRAM
31              On server processors, the event reports  the  number  of  Joules
32              consumed n by the DRAM controller.
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34              By  construction,  the  events  are socket-level and can only be
35              measured in system-wide mode. It is necessary and sufficient  to
36              measure only one CPU per socket to get meaningful results.
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MODIFIERS

40       The PMU does not support any modifiers.
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AUTHORS

43       Stephane Eranian <eranian@gmail.com>
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47                                November, 2013                       LIBPFM(3)