Date: Wed, 21 Jan 2009 16:01:30 -0500 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: KES <kes-kes@yandex.ru> Cc: freebsd-questions@freebsd.org Subject: Re: 'top' shows wrong CPU usage Message-ID: <44k58os79x.fsf@be-well.ilk.org> In-Reply-To: <571280828.20090121220816@yandex.ru> (KES's message of "Wed\, 21 Jan 2009 22\:08\:16 %2B0200") References: <571280828.20090121220816@yandex.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
KES <kes-kes@yandex.ru> writes: > top shows often nonsense in CPU usage of a process, but totals are OK > and it seems that WCPU and CPU has no differences in results Why do you think it's nonsense? It's averaged over a different time period than the "CPU:" line in the header, so I wouldn't expect it to match... > top -S > last pid: 66182; load averages: 2.51, 2.15, 2.03 up 10+23:40:14 22:05:41 > 798 processes: 6 running, 772 sleeping, 1 zombie, 18 waiting, 1 lock > CPU: 4.4% user, 0.0% nice, 14.8% system, 16.7% interrupt, 64.0% idle > Mem: 264M Active, 60M Inact, 147M Wired, 6968K Cache, 60M Buf, 9888K Free > Swap: 2048M Total, 1903M Used, 145M Free, 92% Inuse > > PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND > 11 root 1 171 ki31 0K 8K RUN 104.1H 88.48% idle: cpu0 > 66178 firebird 1 49 0 23120K 5828K select 0:00 1.37% fb_inet_server > 66159 firebird 1 48 0 23120K 5760K select 0:01 1.17% fb_inet_server > 5156 root 1 44 0 9024K 544K select 57:39 0.68% snmpd > 66182 root 1 44 0 4556K 2608K RUN 0:00 0.68% top > 66147 root 1 8 0 3124K 840K nanslp 0:00 0.59% monitord > 66138 firebird 1 44 0 23120K 5736K select 0:01 0.49% fb_inet_server > 75745 www 1 44 0 24628K 9500K select 5:05 0.29% python2.5 > 66180 firebird 1 46 0 23120K 5852K select 0:00 0.10% fb_inet_server > > > #top -S -C > last pid: 66209; load averages: 2.13, 2.10, 2.02 up 10+23:41:07 22:06:34 > 814 processes: 6 running, 788 sleeping, 1 zombie, 18 waiting, 1 lock > CPU: 9.3% user, 0.0% nice, 13.4% system, 12.8% interrupt, 64.5% idle > Mem: 269M Active, 56M Inact, 148M Wired, 12M Cache, 60M Buf, 3700K Free > Swap: 2048M Total, 1903M Used, 145M Free, 92% Inuse > > PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND > 11 root 1 171 ki31 0K 8K RUN 104.1H 92.29% idle: cpu0 > 66138 firebird 1 49 0 23120K 5556K select 0:01 1.46% fb_inet_server > 66180 firebird 1 44 0 23120K 5612K select 0:01 0.59% fb_inet_server > 66209 root 1 44 0 4556K 2556K RUN 0:00 0.59% top > 66179 firebird 1 44 0 23120K 5624K select 0:01 0.49% fb_inet_server > 5156 root 1 44 0 9024K 544K select 57:39 0.39% snmpd > 66147 root 1 8 0 3124K 840K nanslp 0:01 0.39% monitord > 66178 firebird 1 44 0 23120K 5584K select 0:01 0.20% fb_inet_server > 12 root 1 -44 - 0K 8K WAIT 126.8H 0.00% swi1: net > 42 root 1 -68 - 0K 8K - 219:53 0.00% dummynet -- Lowell Gilbert, embedded/networking software engineer, Boston area http://be-well.ilk.org/~lowell/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?44k58os79x.fsf>