| PMC.SOFT(3) |
FreeBSD Library Functions Manual |
PMC.SOFT(3) |
NAME
pmc.soft —
measurements using software based events
LIBRARY
Performance Counters Library (libpmc, -lpmc)
SYNOPSIS
#include < pmc.h>
DESCRIPTION
Software events are used to collect various source of software events.
PMC Features
16 sampling counters using software events based on various sources. These PMCs support the following capabilities:
| Capability |
Support |
| PMC_CAP_CASCADE |
No |
| PMC_CAP_EDGE |
No |
| PMC_CAP_INTERRUPT |
Yes |
| PMC_CAP_INVERT |
No |
| PMC_CAP_READ |
Yes |
| PMC_CAP_PRECISE |
No |
| PMC_CAP_SYSTEM |
Yes |
| PMC_CAP_TAGGING |
No |
| PMC_CAP_THRESHOLD |
No |
| PMC_CAP_USER |
Yes |
| PMC_CAP_WRITE |
Yes |
Event Qualifiers
There is no supported event qualifier.
The event specifiers supported by software are:
-
CLOCK.HARD
-
Hard clock ticks.
-
CLOCK.STAT
-
Stat clock ticks.
-
CLOCK.PROF
-
Profiling clock ticks.
-
LOCK.FAILED
-
Lock acquisition failed.
-
PAGE_FAULT.ALL
-
All page fault type.
-
PAGE_FAULT.READ
-
Read page fault.
-
PAGE_FAULT.WRITE
-
Write page fault.
SEE ALSO
pmc(3),
pmc.atom(3),
pmc.core(3),
pmc.iaf(3),
pmc.ucf(3),
pmc.k7(3),
pmc.k8(3),
pmc.p4(3),
pmc.p5(3),
pmc.p6(3),
pmc.corei7(3),
pmc.corei7uc(3),
pmc.westmereuc(3),
pmc.tsc(3),
pmc_cpuinfo(3),
pmclog(3),
hwpmc(4)
HISTORY
The
pmc library first appeared in
FreeBSD 6.0.
AUTHORS
The
Performance Counters Library (libpmc, -lpmc) library was written by
Joseph Koshy <jkoshy@FreeBSD.org>. Software PMC was written by
Fabien Thomas <fabient@FreeBSD.org>.