mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
124 lines
3.7 KiB
Groff
124 lines
3.7 KiB
Groff
.\"
|
|
.\" Copyright (c) 2010 Silicon Graphics International Corp.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" 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,
|
|
.\" without modification.
|
|
.\" 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
.\" substantially similar to the "NO WARRANTY" disclaimer below
|
|
.\" ("Disclaimer") and any redistribution must be conditioned upon
|
|
.\" including a substantially similar Disclaimer requirement for further
|
|
.\" binary redistribution.
|
|
.\"
|
|
.\" NO WARRANTY
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
|
|
.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
.\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
|
|
.\"
|
|
.\" ctlstat utility man page.
|
|
.\"
|
|
.\" Author: Ken Merry <ken@FreeBSD.org>
|
|
.\"
|
|
.\" $Id: //depot/users/kenm/FreeBSD-test2/usr.bin/ctlstat/ctlstat.8#2 $
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd March 6, 2013
|
|
.Dt CTLSTAT 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm ctlstat
|
|
.Nd CAM Target Layer statistics utility
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl t
|
|
.Op Fl c Ar count
|
|
.Op Fl C
|
|
.Op Fl d
|
|
.Op Fl D
|
|
.Op Fl j
|
|
.Op Fl l Ar lun
|
|
.Op Fl n Ar numdevs
|
|
.Op Fl w Ar wait
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility provides statistics information for the CAM Target Layer.
|
|
The first display (except for dump and JSON modes) shows average statistics
|
|
since system startup.
|
|
Subsequent displays show average statistics during the measurement
|
|
interval.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width 10n
|
|
.It Fl t
|
|
Total mode.
|
|
This displays separate columns with the total CTL read and write output,
|
|
and a combined total column that also includes non I/O operations.
|
|
.It Fl c Ar count
|
|
Display statistics this many times.
|
|
.It Fl C
|
|
Disable display of CPU statistics.
|
|
.It Fl d
|
|
Display DMA operation time (latency) instead of overall I/O time (latency).
|
|
.It Fl D
|
|
Text dump mode.
|
|
Dump all available statistics every 30 seconds in a text format suitable
|
|
for parsing.
|
|
No statistics are computed in this mode, only raw numbers are displayed.
|
|
.It Fl h
|
|
Suppress display of the header.
|
|
.It Fl j
|
|
JSON dump mode.
|
|
Dump all available statistics every 30 seconds in JavaScript Object
|
|
Notation (JSON) format.
|
|
No statistics are computed in this mode, only raw numbers are displayed.
|
|
.It Fl l Ar lun
|
|
Request statistics for the specified LUN.
|
|
This option is incompatible with total
|
|
.Fl ( t )
|
|
mode.
|
|
.It Fl n Ar numdevs
|
|
Display statistics for this many devices.
|
|
.It Fl w Ar wait
|
|
Wait this many seconds in between displays.
|
|
If this option is not specified,
|
|
.Nm
|
|
defaults to a 1 second interval.
|
|
.El
|
|
.Sh EXAMPLES
|
|
.Dl ctlstat -t
|
|
.Pp
|
|
Display total statistics for the system with a one second interval.
|
|
.Pp
|
|
.Dl ctlstat -d -l 5 -C
|
|
.Pp
|
|
Display average DMA time for LUN 5 and omit CPU utilization.
|
|
.Pp
|
|
.Dl ctlstat -n 7 -w 10
|
|
.Pp
|
|
Display statistics for the first 7 LUNs, and display average statistics
|
|
every 10 seconds.
|
|
.Sh SEE ALSO
|
|
.Xr cam 3 ,
|
|
.Xr cam 4 ,
|
|
.Xr ctl 4 ,
|
|
.Xr xpt 4 ,
|
|
.Xr camcontrol 8 ,
|
|
.Xr ctladm 8 ,
|
|
.Xr iostat 8
|
|
.Sh AUTHORS
|
|
.An Ken Merry Aq ken@FreeBSD.org
|
|
.An Will Andrews Aq will@FreeBSD.org
|