High interrupt on Dell PowerEdge 2400
Guy Helmer
ghelmer at palisadesys.com
Tue Jan 24 14:45:50 PST 2006
Eli K. Breen wrote:
> Does anyone have any explanation and resolution for the excessive
> interrupt%?:
>
> (System dmesg at the end of this message)
> =======================================================
> last pid: 2756; load averages: 0.00, 0.00, 0.00
> up 0+15:22:49 14:02:47
> 20 processes: 1 running, 19 sleeping
> CPU states: 0.4% user, 0.0% nice, 0.0% system, 16.1% interrupt,
> 83.5% idle
> Mem: 6540K Active, 118M Inact, 97M Wired, 12K Cache, 112M Buf, 1028M Free
> Swap: 2048M Total, 2048M Free
>
> PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND
> 2235 elib 1 96 0 2368K 1644K RUN 0:19 0.00% top
> 2233 elib 1 96 0 6076K 3144K select 0:02 0.00% sshd
> 477 root 1 96 0 3416K 2816K select 0:02 0.00% sendmail
> 497 root 1 8 0 1312K 1032K nanslp 0:00 0.00% cron
> 348 root 1 96 0 1292K 872K select 0:00 0.00% syslogd
> 421 root 1 96 0 1208K 772K select 0:00 0.00% usbd
> 2229 root 1 4 0 6108K 3136K sbwait 0:00 0.00% sshd
> 481 smmsp 1 20 0 3296K 2688K pause 0:00 0.00% sendmail
> 2234 elib 1 8 0 1676K 1256K wait 0:00 0.00% sh
> 560 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 472 root 1 96 0 3352K 2484K select 0:00 0.00% sshd
> 567 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 562 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 561 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 563 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 564 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 565 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 566 root 1 5 0 1264K 928K ttyin 0:00 0.00% getty
> 319 root 1 113 0 500K 352K select 0:00 0.00% devd
> 171 root 1 20 0 1172K 644K pause 0:00 0.00% adjkerntz
> =======================================================
>
> This machine is a totally stock FreeBSD 6.0 box. I haven't done
> anything except install the OS and boot it.
>
> Ideas?
What does "vmstat -i" report?
Guy
--
Guy Helmer, Ph.D.
Principal System Architect
Palisade Systems, Inc.
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