libpfm_intel_coreduo(3) — Linux manual page
LIBPFM(3) Linux Programmer's Manual LIBPFM(3)
NAME
libpfm_intel_coreduo - support for Intel Core Duo/Solo processors
SYNOPSIS
#include <perfmon/pfmlib.h>
PMU name: coreduo
PMU desc: Intel Core Duo
DESCRIPTION
The library supports all Intel Yonah-based processors such as
Intel Core Duo and Intel Core Solo processors.
MODIFIERS
The following modifiers are supported on Intel Core Duo
processors:
u Measure at user level which includes privilege levels 1,
2, 3. This corresponds to PFM_PLM3. This is a boolean
modifier.
k Measure at kernel level which includes privilege level 0.
This corresponds to PFM_PLM0. This is a boolean modifier.
i Invert the meaning of the event. The counter will now
count 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. This is a boolean modifier.
c Set the counter mask value. The mask acts as a threshold.
The counter will count the number of 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].
ENVIRONMENT VARIABLES
It is possible to force activation of the Intel Core Duo support
using the LIBPFM_FORCE_PMU variable. The PMU name, coreduo, must
be passed. No additional options are supported.
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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