Date: Wed, 21 Oct 2009 14:12:43 +0400 From: Igor Sysoev <is@rambler-co.ru> To: freebsd-stable@freebsd.org Subject: interrupt threads CPU usage in FreeBSD 8.0 Message-ID: <20091021101243.GE3199@rambler-co.ru>
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Hi,
for some reason in 8.0 top always shows 0% CPU usage for intr kernel
process and active interrupt thread, "irq19 bge0" in my case.
8-0 RC1 top -PS:
CPU 0: 27.8% user, 0.0% nice, 7.1% system, 0.0% interrupt, 65.0% idle
CPU 1: 3.0% user, 0.0% nice, 2.3% system, 7.1% interrupt, 87.6% idle
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
11 root 2 171 ki31 0K 32K RUN 0 140.7H 152.54% idle
61371 nobody 1 69 -10 384M 289M kqread 0 105:56 17.77% nginx
61372 nobody 1 67 -10 384M 293M CPU0 0 106:15 16.99% nginx
12 root 15 -60 - 0K 240K WAIT 0 54:50 0.00% intr
8.0 RC1 top -PSH:
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
11 root 171 ki31 0K 32K RUN 1 71.5H 81.05% {idle: cpu1}
11 root 171 ki31 0K 32K CPU0 0 69.3H 69.19% {idle: cpu0}
61372 nobody 68 -10 384M 294M kqread 0 107:06 18.99% nginx
61371 nobody 68 -10 384M 291M kqread 0 106:45 16.99% nginx
12 root -68 - 0K 240K WAIT 1 50:48 0.00% {irq19: bge0}
17 root 44 - 0K 16K syncer 1 5:23 0.00% syncer
12 root -32 - 0K 240K WAIT 1 3:06 0.00% {swi4: clock}
7.2-STABLE top -PS:
CPU 0: 9.0% user, 0.0% nice, 7.9% system, 9.0% interrupt, 74.1% idle
CPU 1: 23.3% user, 0.0% nice, 8.3% system, 0.0% interrupt, 68.4% idle
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
12 root 1 171 ki31 0K 16K RUN 0 275.0H 83.59% idle: cpu0
11 root 1 171 ki31 0K 16K RUN 1 264.2H 76.27% idle: cpu1
16109 nobody 1 68 -10 376M 307M CPU0 1 28:05 21.97% nginx
16110 nobody 1 4 -10 376M 316M RUN 0 28:05 20.17% nginx
26 root 1 -68 - 0K 16K WAIT 0 902:39 6.69% irq19: bge0
--
Igor Sysoev
http://sysoev.ru/en/
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