freebsd-dev/usr.sbin/gstat/gstat.8
Marcelo Araujo 0b9079bf95 - Add CSV output to gstat via -C flag.
Add a -C option, similar to -B, that allows gstat to produce basic CSV output
with absolute timestamps (ISO 8601, nearly.) Multiple devices are handled by
way of a single-pivot CSV table with duplicated timestamps for each object
output.

Submitted by:	Nick Principe <nap__ixsystems.com>
Reviewed by:	myself, imp@, asomers (earlier verison), bcr (manpages)
Sponsored by:	iXsystems Inc.
Differential Revision:	https://reviews.freebsd.org/D16151
2018-08-21 11:22:49 +00:00

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3.0 KiB
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.\" Copyright (c) 2003 Giorgos Keramidas
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.\" $FreeBSD$
.\"
.Dd August 21, 2018
.Dt GSTAT 8
.Os
.Sh NAME
.Nm gstat
.Nd print statistics about GEOM disks
.Sh SYNOPSIS
.Nm
.Op Fl abBcdops
.Op Fl f Ar filter
.Op Fl I Ar interval
.Sh DESCRIPTION
The
.Nm
utility can be used to monitor I/O transactions of
.Xr geom 4
devices.
.Pp
The options are as follows:
.Bl -tag -width indent
.It Fl a
Only display providers that are at least 0.1% busy.
.It Fl b
Batch mode.
Collect numbers, print and exit.
Default if stdout is not a tty.
.It Fl B
Endless batch mode.
Same as batch mode, but does not exit after collecting
the first set of data.
.It Fl c
Enable display of
.Xr geom 4
consumers too.
The default is to show statistics only for
.Xr geom 4
producers.
.It Fl C
CSV output mode.
Implies endless batch mode, but output is in the form of comma-separated
values, with ISO 8601-like timestamps.
.It Fl d
Enable display of statistics for delete
.Pq Dv BIO_DELETE
operations.
.It Fl f Ar filter
A regular expression that can be used to only show statistics for some
devices.
Only devices with the names matching
.Ar filter
will be displayed.
The format of the regular expression is described in
.Xr re_format 7 .
.It Fl o
Enable display of statistics for other operations
.Pq Dv BIO_FLUSH .
.It Fl s
Enable blocks' size statistics.
.It Fl I Ar interval
Refresh the
.Nm
display every
.Ar interval
microseconds.
Adding a suffix of
.Cm s , ms ,
or
.Cm us
(the default) indicates that the update interval is specified in
seconds, milliseconds, or microseconds, respectively.
.It Fl p
Only display physical providers (those with rank of 1).
.El
.Sh EXIT STATUS
.Ex -std
.Sh SEE ALSO
.Xr systat 1 ,
.Xr geom 4 ,
.Xr iostat 8 ,
.Xr vmstat 8
.Sh HISTORY
A
.Nm
utility appeared in
.Fx 5.0 .