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This commit is contained in:
lukem 1997-10-17 09:03:53 +00:00
parent 18b882a973
commit 77a8cb6e83
2 changed files with 19 additions and 18 deletions
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16
usr.sbin/iostat/iostat.8
View File

@ -1,4 +1,4 @@
.\" $NetBSD: iostat.8,v 1.11 1997/03/08 14:29:58 mouse Exp $
.\" $NetBSD: iostat.8,v 1.12 1997/10/17 09:03:53 lukem Exp $
.\"
.\" Copyright (c) 1985, 1991, 1993
.\" The Regents of the University of California. All rights reserved.
@ -42,7 +42,7 @@
.Tn I/O
statistics
.Sh SYNOPSIS
.Nm iostat
.Nm
.Op Fl CdDIT
.Op Fl c Ar count
.Op Fl M Ar core
@ -50,11 +50,11 @@ statistics
.Op Fl w Ar wait
.Op Ar drives
.Sh DESCRIPTION
.Nm Iostat
.Nm
displays kernel
.Tn I/O
statistics on terminal, disk and cpu operations. By default,
.Nm iostat
.Nm
displays one line of statistics averaged over the machine's run time.
The use of
.Fl c
@ -64,7 +64,7 @@ period.
The
.Fl I
option causes
.Nm iostat
.Nm
to print raw, unaveraged values.
.Pp
The options are as follows:
@ -120,7 +120,7 @@ If no repeat
is specified, the default is infinity.
.El
.Pp
.Nm Iostat
.Nm
displays its information in the following format:
.Bl -tag -width flag
.It tty
@ -134,10 +134,10 @@ characters written to terminals
Disk operations.
The header of the field is the disk name and unit number.
If more than four disk drives are configured in the system,
.Nm iostat
.Nm
displays only the first four drives.
To force
.Nm iostat
.Nm
to display specific drives, their names may be supplied on the command
line.
.Pp

21
usr.sbin/iostat/iostat.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: iostat.c,v 1.11 1997/10/17 05:06:40 mrg Exp $ */
/* $NetBSD: iostat.c,v 1.12 1997/10/17 09:03:57 lukem Exp $ */
/*
* Copyright (c) 1996 John M. Vinopal
@ -65,17 +65,17 @@
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1986, 1991, 1993\n\
The Regents of the University of California. All rights reserved.\n";
__COPYRIGHT("@(#) Copyright (c) 1986, 1991, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)iostat.c 8.3 (Berkeley) 4/28/95";
#else
static char *rcsid = "$NetBSD: iostat.c,v 1.11 1997/10/17 05:06:40 mrg Exp $";
__RCSID("$NetBSD: iostat.c,v 1.12 1997/10/17 09:03:57 lukem Exp $");
#endif
#endif /* not lint */
@ -121,6 +121,7 @@ static void selectdrives __P((int, char **));
void dkswap __P((void));
void dkreadstats __P((void));
int dkinit __P((int));
int main __P((int, char **));
int
main(argc, argv)
@ -130,7 +131,7 @@ main(argc, argv)
int ch, hdrcnt;
struct timeval tv;
while ((ch = getopt(argc, argv, "Cc:dDIM:N:Tw:")) != EOF)
while ((ch = getopt(argc, argv, "Cc:dDIM:N:Tw:")) != -1)
switch(ch) {
case 'c':
if ((reps = atoi(optarg)) <= 0)
@ -210,7 +211,7 @@ static void
header(signo)
int signo;
{
register int i;
int i;
/* Main Headers. */
if (ISSET(todo, SHOW_TTY))
@ -256,7 +257,7 @@ static void
disk_stats(etime)
double etime;
{
register int dn;
int dn;
double atime, mbps;
for (dn = 0; dn < dk_ndrive; ++dn) {
@ -290,7 +291,7 @@ static void
disk_stats2(etime)
double etime;
{
register int dn;
int dn;
double atime;
for (dn = 0; dn < dk_ndrive; ++dn) {
@ -313,7 +314,7 @@ double etime;
static void
cpustats()
{
register int state;
int state;
double time;
time = 0;