Date: Wed, 15 Sep 2010 10:18:18 +0000 (UTC) From: Rui Paulo <rpaulo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r212649 - head/cddl/usr.sbin/plockstat Message-ID: <201009151018.o8FAIIjO029773@svn.freebsd.org>
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Author: rpaulo Date: Wed Sep 15 10:18:18 2010 New Revision: 212649 URL: http://svn.freebsd.org/changeset/base/212649 Log: Add a man page for plockstat. Sponsored by: The FreeBSD Foundation Added: head/cddl/usr.sbin/plockstat/plockstat.1 (contents, props changed) Modified: head/cddl/usr.sbin/plockstat/Makefile Modified: head/cddl/usr.sbin/plockstat/Makefile ============================================================================== --- head/cddl/usr.sbin/plockstat/Makefile Wed Sep 15 10:04:41 2010 (r212648) +++ head/cddl/usr.sbin/plockstat/Makefile Wed Sep 15 10:18:18 2010 (r212649) @@ -3,7 +3,6 @@ .PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/cmd/plockstat PROG= plockstat -NO_MAN= SRCS= plockstat.c BINDIR?= /usr/sbin Added: head/cddl/usr.sbin/plockstat/plockstat.1 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/cddl/usr.sbin/plockstat/plockstat.1 Wed Sep 15 10:18:18 2010 (r212649) @@ -0,0 +1,95 @@ +.\" +.\" Copyright (c) 2010 The FreeBSD Foundation +.\" All rights reserved. +.\" +.\" This software was developed by Rui Paulo under sponsorship from the +.\" FreeBSD Foundation. +.\" +.\" 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. +.\" +.\" $FreeBSD$ +.\" +.Dd September 13, 2010 +.Dt PLOCKSTAT 1 +.Os +.Sh NAME +.Nm plockstat +.Nd Trace pthread lock statistics using DTrace +.Sh SYNOPSIS +.Nm +.Op Fl vACHV +.Op Fl n Ar count +.Op Fl s Ar depth +.Op Fl e Ar secs +.Op Fl x Ar opt Ns = Ns Ar val +.Ar command +.Op arg... +.Nm +.Op Fl vACHV +.Op Fl n Ar count +.Op Fl s Ar depth +.Op Fl e Ar secs +.Op Fl x Ar opt Ns = Ns Ar val +.Fl p Ar pid +.Sh DESCRIPTION +The +.Nm +utility traces pthread locks (mutexes and rwlocks) and prints statistics about +them. +You can use +.Nm +to investigate bottlenecks in your software. +.Pp +The following options are available: +.Bl -tag -width indent +.It Fl v +Be verbose. +.It Fl A +Print all statistics. +.It Fl C +Print commulative statistics (the default). +.It Fl H +Print an histogram. +.It Fl V +Print the DTrace script about to be used to stderr. +.It Fl n Ar count +Set the aggregation count for the data set. +.It Fl s Ar depth +Set the ustack (userland stack) caller depth. +.It Fl e Ar secs +Does nothing at the moment. +.It Fl x Ar opt Ns = Ns Ar val +Specify DTrace options. +See the +.Xr dtrace 1 +man page for more details. +.El +.Sh EXIT STATUS +.Ex -std +.Sh SEE ALSO +.Xr dtrace 1 , +.Xr pthread 3 +.Sh HISTORY +The +.Nm +utility comes from the OpenSolaris and was first imported into +.Fx 9.0 .
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