Date: Sun, 16 Nov 2008 16:56:56 +0200 From: =?ISO-8859-1?Q?Ott_K=F6stner?= <OttK@zzz.ee> To: freebsd-questions@freebsd.org Subject: Re: top incorrectly reporting process time Message-ID: <492034B8.9020903@zzz.ee> In-Reply-To: <20081116144057.GA3864@icarus.home.lan> References: <49202F59.7050802@zzz.ee> <20081116144057.GA3864@icarus.home.lan>
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Jeremy Chadwick wrote: > On Sun, Nov 16, 2008 at 04:34:01PM +0200, Ott Köstner wrote: > >> On several FreeBSD machines I have the following problem: >> > > What FreeBSD version? (It matters) > 7.1-PRERELEASE FreeBSD But I can experience it also on a 7.0 machine. Seems that top reports incorrectly processes with multiple threads. $ top -bUbind last pid: 21635; load averages: 0.73, 0.46, 0.29 up 1+00:17:18 16:48:10 54 processes: 1 running, 53 sleeping Mem: 66M Active, 1174M Inact, 204M Wired, 36K Cache, 112M Buf, 555M Free Swap: 2048M Total, 2048M Free PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND 979 bind 8 44 0 40288K 32916K select 0 0:16 0.00% named $ ps -ax|grep 979 979 ?? Ss 1:11.26 /usr/sbin/named -n 5 -t /var/named -u bind > >> # top -bUmysql >> last pid: 99112; load averages: 0.22, 0.12, 0.09 up 2+06:07:05 >> 16:17:43 >> 132 processes: 1 running, 131 sleeping >> >> Mem: 718M Active, 2494M Inact, 455M Wired, 77M Cache, 214M Buf, 213M Free >> Swap: 4096M Total, 4096M Free >> >> >> PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU >> COMMAND >> 1079 mysql 9 20 0 81564K 60268K sigwai 1 0:01 0.00% mysqld >> >> >> ^^^^^^^ >> ------------------------------------------------------------------------------------------------------------ >> >> 1015 mysql 1 8 0 7056K 1368K wait 1 0:00 0.00% sh >> >> >> However mysqld time is actually >> >> # ps -ax|grep mysql >> 1015 con- I 0:00.01 /bin/sh /usr/local/bin/mysqld_safe >> --defaults-extra-file=/var/db/mysql/my.cnf >> 1079 con- S 70:03.64 [mysqld] >> ^^^^^^^^^^^ >> ------------------------------------------------------------------------------------------------------------ >> >> 99156 p0 S+ 0:00.00 grep mysql >> >> Anyone who can explain this? >> > > Does the behaviour change if you mount /proc? (This would mainly apply > to RELENG_6 and earlier only) > > procfs on /proc (procfs, local) No.
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