2001-06-05 14:08:03 +04:00
|
|
|
.\" $NetBSD: pmc.1,v 1.2 2001/06/05 10:08:05 wiz Exp $
|
2000-10-25 03:54:31 +04:00
|
|
|
.\"
|
|
|
|
|
.\" Copyright (c) 2000 Zembu Labs, Inc.
|
|
|
|
|
.\" All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" Author: Jason R. Thorpe <thorpej@zembu.com>
|
|
|
|
|
.\"
|
|
|
|
|
.\" 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.
|
|
|
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
|
|
|
.\" must display the following acknowledgement:
|
|
|
|
|
.\" This product includes software developed by Zembu Labs, Inc.
|
|
|
|
|
.\" 4. Neither the name of Zembu Labs nor the names of its employees may
|
|
|
|
|
.\" be used to endorse or promote products derived from this software
|
|
|
|
|
.\" without specific prior written permission.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS
|
|
|
|
|
.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR-
|
|
|
|
|
.\" RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS-
|
|
|
|
|
.\" CLAIMED. IN NO EVENT SHALL ZEMBU LABS 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 October 24, 2000
|
|
|
|
|
.Dt PMC 1
|
2001-06-05 14:08:03 +04:00
|
|
|
.Os
|
2000-10-25 03:54:31 +04:00
|
|
|
.Sh NAME
|
|
|
|
|
.Nm pmc
|
|
|
|
|
.Nd performance counter interface for command execution
|
|
|
|
|
.Sh SYNOPSIS
|
|
|
|
|
.Nm ""
|
|
|
|
|
.Fl h
|
|
|
|
|
.Nm ""
|
|
|
|
|
.Fl C
|
|
|
|
|
.Nm ""
|
|
|
|
|
.Fl c
|
|
|
|
|
.Ar event
|
|
|
|
|
.Ar command
|
|
|
|
|
.Oo
|
|
|
|
|
.Ar options
|
|
|
|
|
.Ar ...
|
|
|
|
|
.Oc
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
.Nm
|
|
|
|
|
is a means of using a processor's performance counter facility to
|
|
|
|
|
measure various aspects of a program's execution. It is meant to
|
|
|
|
|
be used in a fashion similar to
|
|
|
|
|
.Xr time 1 .
|
|
|
|
|
.Pp
|
|
|
|
|
The arguments are as follows:
|
|
|
|
|
.Bl -tag -width -indent
|
|
|
|
|
.It Fl h
|
|
|
|
|
Display a list of performance counter events available on the system.
|
|
|
|
|
.It Fl C
|
|
|
|
|
Cancel any performance counters that are currently running.
|
|
|
|
|
.It Fl c Ar event
|
|
|
|
|
Count the event specified by
|
|
|
|
|
.Ar event
|
|
|
|
|
while running the command.
|
|
|
|
|
.El
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr time 1
|
|
|
|
|
.Sh HISTORY
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
command first appeared in
|
|
|
|
|
.Nx 1.6 .
|
|
|
|
|
.Sh AUTHORS
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
command was written by
|
|
|
|
|
.An Frank van der Linden
|
|
|
|
|
.Aq fvdl@wasabisystems.com .
|
|
|
|
|
The kernel support for reading performance counters on the i386
|
|
|
|
|
architecture was written by
|
|
|
|
|
.An Jason R. Thorpe
|
|
|
|
|
.Aq thorpej@zembu.com .
|
|
|
|
|
.Sh BUGS
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
command currently only supports 686-class performance counters on
|
|
|
|
|
the i386 architecture.
|
