Subject: kern/12660: systat reports > 100% CPU usage with only 1 processor
To: None <gnats-bugs@gnats.netbsd.org>
From: None <mac@S.Culver.Net>
List: netbsd-bugs
Date: 04/14/2001 22:30:04
>Number: 12660
>Category: kern
>Synopsis: systat reports > 100% CPU usage with only 1 processor
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sat Apr 14 22:22:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Mike Cheponis
>Release: 2001 03 07 1.5T
>Organization:
>Environment:
1.1G tbird/0.5G dram/40G IBM IDE disk
System: NetBSD S 1.5T NetBSD 1.5T (GENERIC) #1: Tue Mar 27 13:12:54 PST 2001 toddpw@vader.toddpw.net:/usr/src/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
2 users Load 4.41 2.75 1.79 Sat Apr 14 22:25:50
memory totals (in KB) PAGING SWAPPING Interrupts
real virtual free in out in out 227 total
Active 159092 159124 301272 ops 100 irq0
ll 210320 210352 2399388 pages irq6
38 irq11
roc:r d s w Csw Trp Sys Int Sof Flt forks 89 irq15
3 1 6 455 272 701 249 240 38 fkppw
fksvm
4.0% Sy 0.0% Us 96.0% Ni 0.0% In 0.0% Id pwait
| | | | | | | | | | | relck
==------------------------------------------------ rlkok
noram
Namei Sys-cache Proc-cache ndcpy
Calls hits % hits % fltcp
617 534 87 2 0 zfod
cow
Discs wd0 fd0 md0 64 fmin
seeks 85 ftarg
xfers 89 38395 itarg
Kbyte 402 58 wired
%busy102.0 pdfre
pdscn
Note that %busy is captured to be > 100%
>How-To-Repeat:
Run several processes and run "systat vmstat 1"
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: