711385c9d0
expression, which makes it possible to only see interesting
providers. "f" is used inside gstat to set a filter, "F" is used to
remove current filter.
- Do not print some uninteresting values in the gstat title line.
- Do not print past the end of the screen.
- Read multiple keystrokes per "wait" when gstat is running.
- Remove a redundant != check, right after check of NULL against the
same variable ("gid").
- Use sysexits.h.
- Do not link against libkvm and libsbuf, they are not actually used.
- Fix a few style(9) issues where I had to touch nearby code anyway.
Approved by: cperciva (mentor)
MFC after: 2 weeks
105 lines
2.8 KiB
Groff
105 lines
2.8 KiB
Groff
.\" Copyright (c) 2003 Giorgos Keramidas
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.\" All rights reserved.
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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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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd May 20, 2006
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.Dt GSTAT 8
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.Os
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.Sh NAME
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.Nm gstat
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.Nd print statistics about GEOM disks
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.Sh SYNOPSIS
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.Nm
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.Op Fl acd
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.Op Fl f Ar filter
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.Op Fl I Ar interval
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.Sh DESCRIPTION
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The
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.Nm
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utility can be used to monitor I/O transactions of
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.Xr geom 4
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devices.
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.Pp
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The options are as follows:
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.Bl -tag -width indent
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.It Fl a
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Only display providers that are at least 0.1% busy.
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.It Fl c
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Enable display of
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.Xr geom 4
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consumers too.
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The default is to show statistics only for
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.Xr geom 4
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producers.
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.It Fl d
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Enable display of statistics for delete
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.Pq Dv BIO_DELETE
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operations.
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.It Fl f Ar filter
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A regular expression that can be used to only show statistics for some
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devices.
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Only devices which name match
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.Ar filter
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will be displayed.
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The format of the regular expression is described in
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.Xr re_format 7 .
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.It Fl I Ar interval
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Refresh the
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.Nm
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display every
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.Ar interval
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microseconds.
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Adding a suffix of
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.Cm s , ms ,
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or
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.Cm us
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(the default) indicates that the update interval is specified in
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seconds, milliseconds, or microseconds, respectively.
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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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.Xr systat 1 ,
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.Xr geom 4 ,
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.Xr iostat 8 ,
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.Xr vmstat 8
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.Sh HISTORY
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A
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.Nm
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utility appeared in
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.Fx 5.0 .
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.Sh BUGS
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The
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.Nm
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utility only works interactively.
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It should probably detect when it is run non-interactively and produce
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simple
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.Tn ASCII
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text output.
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Otherwise, this utility should probably be folded into
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.Xr systat 1
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which only works interactively and is the obvious utility to run for
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various other forms of system statistics.
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