Date: Mon, 25 Jul 2011 09:23:23 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Andriy Gapon <avg@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: Heavy I/O blocks FreeBSD box for several seconds Message-ID: <20110725162323.GA27425@troutmask.apl.washington.edu> In-Reply-To: <4E2D3EBB.9060508@FreeBSD.org> References: <4E14A54A.4050106@freebsd.org> <4E155FF9.5090905@FreeBSD.org> <20110707151440.GA75537@troutmask.apl.washington.edu> <4E160C2F.8020001@FreeBSD.org> <20110707200845.GA77049@troutmask.apl.washington.edu> <ivf221$oo2$1@dough.gmane.org> <4E1B1198.6090308@FreeBSD.org> <20110711161654.GA97361@troutmask.apl.washington.edu> <4E1C003B.4090604@FreeBSD.org> <4E2D3EBB.9060508@FreeBSD.org>
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On Mon, Jul 25, 2011 at 01:00:27PM +0300, Andriy Gapon wrote: > on 12/07/2011 11:05 Andriy Gapon said the following: > > I think that the best thing you can further provide (as objective evidence for > > the problem at hand) is ktr(4) traces for at least KTR_SCHED mask. Perhaps you > > even already have them from your previous sessions with Jeff. > > > > P.S. This is not a promise to actually debug this issue based on the traces :-) > > So do you have an opportunity to provide this kind of information? > Actually I would like KTR_SCHED|KTR_INTR|KTR_PROC|KTR_SYSC mask. > Also, sysctl kern.sched output would be useful too. > This is for the ULE case, of course. > I won't have time until next week to investigate. -- Steve
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