2010-08-26 11:45:39 +00:00
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.\"
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.\" Copyright (c) 2010 The FreeBSD Foundation
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.\" All rights reserved.
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.\"
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.\" This software was developed by Rui Paulo under sponsorship from the
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.\" FreeBSD Foundation.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd August 26, 2010
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.Dt DTRUSS 1
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.Os
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.Sh NAME
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2012-09-01 06:23:13 +00:00
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.Nm dtruss
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2010-08-26 11:45:39 +00:00
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.Nd Trace system calls and userland stacks using DTrace
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.Sh SYNOPSIS
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.Nm
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.Op Fl acdefholLs
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.Op Fl t Ar syscall
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.Op Fl n Ar name Fl p Ar pid Ar command
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.Sh DESCRIPTION
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The
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.Nm
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utility traces system calls and (optionally) userland stack traces for the
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specified programs.
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.Pp
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The following options are available:
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.Bl -tag -width indent
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.It Fl p Ar pid
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Trace the process with PID
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.Ar pid .
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.It Fl n Ar name
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Trace the process with name
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.Ar name .
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.It Fl t Ar syscall
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Trace the specified syscall only.
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.It Fl a
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Print all details.
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.It Fl c
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Print syscall counts.
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.It Fl d
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Print relative times (in microseconds).
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.It Fl e
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Print elapsed times (in microseconds).
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.It Fl f
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Follow the children processes.
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.It Fl l
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Force printing PID / TID.
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.It Fl o
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Print time spent on CPU.
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.It Fl s
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Print userland stack backtraces.
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.It Fl L
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Don't print PID / TID.
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.It Fl b Ar bufsize
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Specify the DTrace buffer size.
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.El
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.Sh EXIT STATUS
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.Ex -std
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.Sh SEE ALSO
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2012-09-01 06:23:13 +00:00
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.Xr dtrace 1
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2010-08-26 11:45:39 +00:00
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.Sh HISTORY
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The
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.Nm
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utility comes from the DTraceToolkit and was first imported into
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.Fx 9.0 .
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.Sh AUTHORS
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.An Brendan Gregg
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