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NAMEpmc.tsc —
measurements using the i386 timestamp counter
LIBRARYPerformance Counters Library (libpmc, -lpmc)SYNOPSIS#include <pmc.h>
DESCRIPTIONIn the i386 architecture, the timestamp counter is a monotonically non-decreasing counter that counts processor cycles.This counter may be selected specifying an event specifier
“ Multiple processes are allowed to allocate the TSC. Once
allocated, the TSC may be read using the Event Name AliasesThe alias “cycles ” maps to the TSC.
SEE ALSOpmc(3), pmc.atom(3), pmc.core(3), pmc.core2(3), pmc.iaf(3), pmc.k7(3), pmc.k8(3), pmc.soft(3), pmclog(3), hwpmc(4)HISTORYThepmc library first appeared in
FreeBSD 6.0.
AUTHORSThe Performance Counters Library (libpmc, -lpmc) library was written by Joseph Koshy <jkoshy@FreeBSD.org>.
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