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

6       libpfm_intel_ivbep_unc_qpi - support for Intel Ivy Bridge-EP QPI uncore
7       PMU
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SYNOPSIS

10       #include <perfmon/pfmlib.h>
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12       PMU name: ivbep_unc_qpi0, ivbep_unc_qpi1
13       PMU desc: Intel Ivy Bridge-EP QPI uncore PMU
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DESCRIPTION

17       The library supports the Intel Ivy Bridge Power QPI uncore  PMU.   This
18       PMU model only exists on Ivy Bridge model 62.
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MODIFIERS

22       The  following  modifiers  are supported on Intel Ivy Bridge QPI uncore
23       PMU:
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25       e      Enable edge detection, i.e., count only when there  is  a  state
26              transition  from  no  occurrence  of  the  event to at least one
27              occurrence. This modifier must be combined with a threshold mod‐
28              ifier (t) with a value greater or equal to one.  This is a bool‐
29              ean modifier.
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31       t      Set the threshold value. When  set  to  a  non-zero  value,  the
32              counter  counts  the number of QPI cycles in which the number of
33              occurrences of the event is greater or equal to  the  threshold.
34              This is an integer modifier with values in the range [0:255].
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AUTHORS

38       Stephane Eranian <eranian@gmail.com>
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42                                February, 2014                       LIBPFM(3)