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NAME | SYNOPSIS | DESCRIPTION | MODIFIERS | AUTHORS | COLOPHON |
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
libpfm_intel_bdx_unc_r2pcie - support for Intel Broadwell Server R2
PCIe uncore PMU
#include <perfmon/pfmlib.h>
PMU name: bdx_unc_r2pcie
PMU desc: Intel Broadwell Server R2 PCIe uncore PMU
The library supports the Intel Broadwell server R2 PCIe uncore PMU.
This PMU model only exists on Broadwell server models (79, 86).
The following modifiers are supported on Intel Broadwell server
R2PCIe 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 R2PCIe 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 [0:15].
i Invert the meaning of the threshold or edge filter. If set,
the event counts when strictly less than N occurrences occur
per cycle if threshold is set to N. When invert is set, then
threshold must be set to non-zero value. If set, the event
counts when the event transitions from occurring to not
occurring (falling edge) when edge detection is set. This is a
boolean modifier
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‐
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COLOPHON (which is not part of the original manual page), send a mail
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June, 2017 LIBPFM(3)