freebsd-skq

History

jkh 808a36ef65 Make the long-awaited change from $Id$ to $FreeBSD$ This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.		1997-01-14 07:20:47 +00:00
..
Makefile	Make the long-awaited change from $Id$ to $FreeBSD$	1997-01-14 07:20:47 +00:00
perfmon.c	Make the long-awaited change from $Id$ to $FreeBSD$	1997-01-14 07:20:47 +00:00
README	Make the long-awaited change from $Id$ to $FreeBSD$	1997-01-14 07:20:47 +00:00

README

`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).

$FreeBSD$