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NAME | SYNOPSIS | DESCRIPTION | MODIFIERS | AUTHORS | COLOPHON |
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
libpfm_intel_ivbep_unc_qpi - support for Intel Ivy Bridge-EP QPI
uncore PMU
#include <perfmon/pfmlib.h>
PMU name: ivbep_unc_qpi0, ivbep_unc_qpi1
PMU desc: Intel Ivy Bridge-EP QPI uncore PMU
The library supports the Intel Ivy Bridge Power QPI uncore PMU. This
PMU model only exists on Ivy Bridge model 62.
The following modifiers are supported on Intel Ivy Bridge QPI uncore
PMU:
e Enable edge detection, i.e., count only when there is a state
transition from no occurrence of the event to at least one
occurrence. This modifier must be combined with a threshold
modifier (t) with a value greater or equal to one. This is a
boolean modifier.
t Set the threshold value. When set to a non-zero value, the
counter counts the number of QPI cycles in which the number of
occurrences of the event is greater or equal to the threshold.
This is an integer modifier with values in the range [0:255].
Stephane Eranian <eranian@gmail.com>
This page is part of the perfmon2 (a performance monitoring library)
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⟨http://perfmon2.sourceforge.net/⟩. If you have a bug report for this
manual page, send it to perfmon2-devel@lists.sourceforge.net. This
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⟨git://git.code.sf.net/p/perfmon2/libpfm4⟩ on 2017-07-05. If you dis‐
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COLOPHON (which is not part of the original manual page), send a mail
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February, 2014 LIBPFM(3)