LIBPFM(3) Linux Programmer's Manual LIBPFM(3)NAMElibpfm_intel_snbep_unc_r2pcie - support for Intel Sandy Bridge-EP R2
PCIe uncore PMU
SYNOPSIS
#include <perfmon/pfmlib.h>
PMU name: snbep_unc_r2pcie
PMU desc: Intel Sandy Bridge-EP R2 PCIe uncore PMU
DESCRIPTION
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.
MODIFIERS
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 bool‐
ean 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 mod‐
ifier (t) with a value greater or equal to one. This is a bool‐
ean 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 thresh‐
old. This is an integer modifier with values in the range
[0:15].
AUTHORS
Stephane Eranian <eranian@gmail.com>
August, 2012 LIBPFM(3)
