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mirror of https://git.FreeBSD.org/src.git synced 2024-12-23 11:18:54 +00:00
freebsd/share/examples/perfmon
1999-08-28 00:22:10 +00:00
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Makefile $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
perfmon.c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
README $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00

`perfmon' is a sample program to access the performance-monitoring
counters on Pentium and Pentium Pro CPUs.  See perfmon(4) for a
description of this facility.

The program takes the following options:

	-u	count events in user mode
	-o	count events in kernel mode
		(these two can be combined)

	-e	count events, not duration
	-l n	run `n' loops (default 50)
	-s n	sleep `n' seconds between loop iterations (default 0)

The following options are not implemented on Pentium CPUs:

	-m n	use count mask `n'
	-i	invert sense of count mask comparison
	-U n	use unit mask `n'

There is one mandatory argument, which must be the number of the counter.
All numbers can be specified in any format acceptable to strtol(3).

$FreeBSD$