Date: Sat, 24 Jun 2006 02:45:14 -0300 (ADT) From: "Marc G. Fournier" <scrappy@hub.org> To: Charles Swiger <cswiger@mac.com> Cc: freebsd-stable@freebsd.org Subject: Re: vmstat 'b' (disk busy?) field keeps climbing ... Message-ID: <20060624022227.X1114@ganymede.hub.org> In-Reply-To: <261AD16B-C3FE-4671-996E-563053508CE8@mac.com> References: <20060623172557.H1114@ganymede.hub.org> <261AD16B-C3FE-4671-996E-563053508CE8@mac.com>
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On Fri, 23 Jun 2006, Charles Swiger wrote: > On Jun 23, 2006, at 4:44 PM, Marc G. Fournier wrote: >> procs memory page disks faults cpu >> r b w avm fre flt re pi po fr sr da0 pa0 in sy cs us sy >> id >> 1 42 1 10249060 161668 1290 54 12 3 1409 2202 102 0 751 6416 3350 24 >> 15 61 >> 0 39 0 10148976 148104 654 10 5 2 660 0 49 0 615 4440 2584 18 >> 9 73 >> >> the last time it hung, it hit about 45 ... about 6 hours ago, it was at >> ~5-10 ... anything I should look at to figure out where those 39+ are >> 'busy'? > > 'b' stands for "blocked", not "busy". Judging by your page fault rate and > the high number of frees and pages being scanned, you're probably swapping > tasks in and out and are waiting on disk. Take a look at "vmstat -s", and > consider adding more RAM if this is correct... is there a way of finding out what processes are blocked? ---- 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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