From owner-freebsd-smp Sun Nov 26 14:16:47 2000 Delivered-To: freebsd-smp@freebsd.org Received: from thelab.hub.org (CDR22-173.accesscable.net [24.138.22.173]) by hub.freebsd.org (Postfix) with ESMTP id 7DE7237B479; Sun, 26 Nov 2000 14:16:44 -0800 (PST) Received: from localhost (scrappy@localhost) by thelab.hub.org (8.11.1/8.11.1) with ESMTP id eAQMG5u84299; Sun, 26 Nov 2000 18:16:05 -0400 (AST) (envelope-from scrappy@hub.org) X-Authentication-Warning: thelab.hub.org: scrappy owned process doing -bs Date: Sun, 26 Nov 2000 18:16:05 -0400 (AST) From: The Hermit Hacker To: Alfred Perlstein Cc: smp@FreeBSD.ORG, jhb@FreeBSD.ORG Subject: Re: disk IO terrible in smpng? In-Reply-To: <20001126141204.Y8051@fw.wintelcom.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Sun, 26 Nov 2000, Alfred Perlstein wrote: > > On Sat, 25 Nov 2000, Alfred Perlstein wrote: > > > > > I've been trying to generate some patches on a SMPng box, but the > > > IO is killing me, anything disk bound seems to hog the CPU > > > and make the machine terribly sluggish. > > > > > > Is this to be expected? > > * The Hermit Hacker [001126 13:45] wrote: > > > > Is this with the latest -current? I'm noticing some unexpected lags on my > > machine recently, but hadn't looked as far as the I/O yet ... I'm still > > getting the periodic system hangs, where I have to hit the reset button, > > so figured it was all inter-laced with that ... > > > > This is with -current from yesterday, Tor Egge told me to remove > some of the debugging code like MUTEX_DEBUG and the WITNESS > stuff, it seems quicker now. 'K, definitely not my problem ... I don't have any of that turned on ... ah well, isn't killing me too much, just grin and bear it :) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message