Date: Sat, 24 Jun 2006 14:58:23 -0300 (ADT) From: "Marc G. Fournier" <scrappy@hub.org> To: Dmitry Morozovsky <marck@rinet.ru> Cc: Kostik Belousov <kostikbel@gmail.com>, freebsd-stable@freebsd.org Subject: Re: vmstat 'b' (disk busy?) field keeps climbing ... Message-ID: <20060624145733.H1114@ganymede.hub.org> In-Reply-To: <20060624154017.E30039@woozle.rinet.ru> References: <20060623172557.H1114@ganymede.hub.org> <261AD16B-C3FE-4671-996E-563053508CE8@mac.com> <20060624022227.X1114@ganymede.hub.org> <20060624115505.E14669@woozle.rinet.ru> <20060624090656.GB79678@deviant.kiev.zoral.com.ua> <20060624154017.E30039@woozle.rinet.ru>
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On Sat, 24 Jun 2006, Dmitry Morozovsky wrote: > On Sat, 24 Jun 2006, Kostik Belousov wrote: > > KB> > MGF> > 'b' stands for "blocked", not "busy". Judging by your page fault rate > KB> > MGF> > and the high number of frees and pages being scanned, you're probably > KB> > MGF> > swapping tasks in and out and are waiting on disk. Take a look at > KB> > MGF> > "vmstat -s", and consider adding more RAM if this is correct... > KB> > MGF> > KB> > MGF> is there a way of finding out what processes are blocked? > KB> > > KB> > Aren't they in 'D' status by ps? > KB> Use ps axlww. In this way, at least actual blocking points are shown. > > /me knows ;-) OTOH, I'm faurly sure scrappy@ should know this very > well... Considering I thought it was 'busy' and not 'blocked', I'm in new territory here :) ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email . scrappy@hub.org MSN . scrappy@hub.org Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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