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.\" $OpenBSD: pctr.1,v 1.7 2007/03/15 04:25:30 cloder Exp $
.\"
.\" Copyright (c) 1998, Jason Downs. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
.\" DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
.\" CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd August 30, 1998
.Dt PCTR 1
.Os
.Sh NAME
.Nm pctr
.Nd display CPU performance counters
.Sh SYNOPSIS
.Nm pctr
.Op Fl l Ar 5 | 6
.Sh DESCRIPTION
The
.Nm
program is a sample implementation of how to access the
.Xr pctr 4
pseudo device available on many i386 compatible machines.
.Pp
By default, the
.Nm
command displays the current values of the TSC and any vendor specific
counter registers.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl l Ar 5 | 6
List all possible vendor specific counters.
The argument specifies which
.Dq family
to display; it defaults to the
.Dq family
designation of the current processor.
.El
.Pp
The
.Nm
program exits with a value of 0 on success or 1 on failure.
.Sh SEE ALSO
.Xr pctr 4
.Sh HISTORY
The
.Nm
program appeared in
.Ox 2.0 .
.Sh BUGS
The
.Nm
program is still oriented towards Intel brand microprocessors.
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