libpfm_intel_hswep_unc_imc(3) — Linux manual page
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
NAME
libpfm_intel_hswep_unc_imc - support for Intel Haswell-EP
Integrated Memory Controller (IMC) uncore PMU
SYNOPSIS
#include <perfmon/pfmlib.h>
PMU name: hswep_unc_imc[0-7]
PMU desc: Intel Haswell-EP IMC uncore PMU
DESCRIPTION
The library supports the Intel Haswell Integrated Memory
Controller (IMC) uncore PMU. This PMU model only exists on
Haswell model 63.
MODIFIERS
The following modifiers are supported on Intel Haswell C-Box
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 IMC 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]. 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
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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