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NAME | SYNOPSIS | DESCRIPTION | MODIFIERS | AUTHORS | COLOPHON |
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
libpfm_intel_snbep_unc_r2pcie - support for Intel Sandy Bridge-EP R2
PCIe uncore PMU
#include <perfmon/pfmlib.h>
PMU name: snbep_unc_r2pcie
PMU desc: Intel Sandy Bridge-EP R2 PCIe uncore PMU
The library supports the Intel Sandy Bridge R2 PCIe uncore PMU. This
PMU model only exists on Sandy Bridge model 45. There is only one
R2PCIe PMU per processor socket.
The following modifiers are supported on Intel Sandy Bridge R2PCIe
uncore PMU:
i Invert the meaning of the event. The counter will now count R2
PCIe cycles in which the event is not occurring. This is a
boolean modifier
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].
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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August, 2012 LIBPFM(3)