libpfm_intel_ivbep_unc_ha(3) — Linux manual page
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
NAME
libpfm_intel_ivbep_unc_ha - support for Intel Ivy Bridge-EP Home
Agent (HA) uncore PMU
SYNOPSIS
#include <perfmon/pfmlib.h>
PMU name: ivbep_unc_ha0, ivbep_unc_ha1
PMU desc: Intel Ivy Bridge-EP HA uncore PMU
DESCRIPTION
The library supports the Intel Ivy Bridge Home Agent (HA) uncore
PMU. This PMU model only exists on Ivy Bridge model 62.
MODIFIERS
The following modifiers are supported on Intel Ivy Bridge HA
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 HA 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].
AUTHORS
Stephane Eranian <eranian@gmail.com>
COLOPHON
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 perfmon2-libpfm4⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-04-24.) If you
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