Date: Sun, 24 Sep 2006 01:50:00 +0200 From: "Ronald Klop" <ronald-freebsd8@klop.yi.org> To: =?utf-8?Q?V=C3=A1clav_Haisman?= <V.Haisman@sh.cvut.cz>, freebsd-stable@freebsd.org Subject: Re: (Wrong) CPU utilization reported by top Message-ID: <op.tgcu5mk58527sy@guido.klop.ws> In-Reply-To: <45158807.8090801@sh.cvut.cz> References: <45158807.8090801@sh.cvut.cz>
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On Sat, 23 Sep 2006 21:16:23 +0200, Václav Haisman <V.Haisman@sh.cvut.cz> wrote: > Hi, > I have noticed that top reports strange values for CPU utilization. The > problem is that while it reports this for overall utilization... > > CPU states: 40.8% user, 0.0% nice, 3.7% system, 4.5% interrupt, 50.9% > idle > > ...it doesn't show a single process that would have over 1% of WCPU or > CPU! > > PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU > COMMAND > 17980 xxxxx 1 96 0 5568K 3536K *Giant 213:05 0.00% > silc > 88370 xxxxxxxxx 1 96 0 5584K 3592K RUN 211:07 0.00% > silc > 93031 xxxxxx 5 20 0 58288K 40712K kserel 164:25 0.00% > vlc > 20223 xxx 5 20 0 238M 29572K kserel 36:04 0.00% > java > 17539 xxxxx 1 96 0 10692K 6032K select 26:51 0.00% > centericq > 30491 xxxxxx 1 96 0 7076K 4708K select 26:48 0.00% > ventrilo_srv > > I am quite positive it is the vlc process that eats most of the reported > 40% > of CPU because if I turn it off the user time goes down bellow 10%. But > despite that top shows zero in its row. > > The box is uniprocessor x86 FreeBSD 6.1. I see the same and it is always with threaded applications (libpthread). If you use libthr (see libmap.conf) it shows a lot better. Ronald. -- Ronald Klop Amsterdam, The Netherlands
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