Date: Wed, 20 Mar 1996 09:43:02 -0800 From: Tom Samplonius <tom@atlas.uniserve.com> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/1090: iostat displays incorrect sps count Message-ID: <199603201743.JAA23183@atlas.uniserve.com> Resent-Message-ID: <199603201750.JAA20468@freefall.freebsd.org>
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>Number: 1090
>Category: kern
>Synopsis: iostat displays incorrect sps count
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Mar 20 09:50:00 PST 1996
>Last-Modified:
>Originator: Tom Samplonius
>Organization:
TVS
>Release: FreeBSD 2.1-STABLE i386
>Environment:
atlas# uname -a
FreeBSD atlas.uniserve.com 2.1-STABLE FreeBSD 2.1-STABLE #0: Wed Mar 13 08:00:49
PST 1996 tom@atlas.uniserve.com:/local/src/sys/compile/ATLAS i386
>Description:
iostat displays negative values for "sps" for the first output line of iostat
on systems with heavy disk load.
>How-To-Repeat:
atlas# iostat
tty sd0 sd1 sd2 sd3 cpu
tin tout sps tps msps sps tps msps sps tps msps sps tps msps us ni sy in id
0 5 -25 1 1.0 -13 40 0.0 5 9 0.0 -8 22 0.0 1 19 4 2 74
atlas# iostat -w 10
tty sd0 sd1 sd2 sd3 cpu
tin tout sps tps msps sps tps msps sps tps msps sps tps msps us ni sy in id
0 5 -25 1 1.0 -12 40 0.0 5 9 0.0 -8 22 0.0 1 19 4 2 74
1 9 74 5 0.0 457 61 0.0 1781 56 0.0 665 43 0.0 0 11 9 2 78
0 8 49 3 0.0 286 42 0.0 1798 51 0.0 471 29 0.0 1 18 9 3 69
2 10 52 4 0.0 344 50 0.0 1797 50 0.0 460 32 0.0 1 28 10 3 58
4 24 49 3 0.0 334 48 0.0 2168 54 0.0 562 35 0.0 0 23 11 2 64
2 11 41 3 0.0 382 53 0.0 1936 53 0.0 638 41 0.0 0 10 9 3 77
3 22 25 2 0.0 414 58 0.0 1989 54 0.0 638 38 0.0 0 13 11 3 73
2 10 21 1 0.0 415 58 0.0 1859 50 0.0 451 30 0.0 0 7 9 2 82
^C
atlas# iostat
tty sd0 sd1 sd2 sd3 cpu
tin tout sps tps msps sps tps msps sps tps msps sps tps msps us ni sy in id
0 5 -25 1 1.0 -12 40 0.0 5 9 0.0 -7 22 0.0 1 19 4 2 74
atlas#
>Fix:
>Audit-Trail:
>Unformatted:
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