config root man

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.\" $FreeBSD: release/9.1.0/usr.sbin/gstat/gstat.8 189739 2009-03-12 13:17:46Z maxim $
.\"
.Dd March 12, 2009
.Dt GSTAT 8
.Os
.Sh NAME
.Nm gstat
.Nd print statistics about GEOM disks
.Sh SYNOPSIS
.Nm
.Op Fl abcd
.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 c
Enable display of
.Xr geom 4
consumers too.
The default is to show statistics only for
.Xr geom 4
producers.
.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 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.
.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 .