From owner-freebsd-current Sun Jun 7 09:43:48 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA27840 for freebsd-current-outgoing; Sun, 7 Jun 1998 09:43:48 -0700 (PDT) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dyson.iquest.net (dyson.iquest.net [198.70.144.127]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA27819 for ; Sun, 7 Jun 1998 09:43:44 -0700 (PDT) (envelope-from toor@dyson.iquest.net) Received: (from root@localhost) by dyson.iquest.net (8.8.8/8.8.8) id LAA03398; Sun, 7 Jun 1998 11:43:41 -0500 (EST) (envelope-from toor) From: "John S. Dyson" Message-Id: <199806071643.LAA03398@dyson.iquest.net> Subject: Re: New SMP perf/quality snapshot In-Reply-To: <357ABF4C.163AB046@switchboard.net> from "Matthew R. Briggs" at "Jun 7, 98 12:26:52 pm" To: mbriggs@switchboard.net (Matthew R. Briggs) Date: Sun, 7 Jun 1998 11:43:41 -0500 (EST) Cc: toor@dyson.iquest.net, freebsd-current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL38 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Hello, > I'm pleased to say that the new SMP snapshot is a LOT more stable on my > dual-333 system. I mentioned earlier that I could crash it on demand > with parallel makes, but that hasn't happened for a while. I've had > only one crash after a fairly heavy beating, but the crash was more like > a freeze and left nothing in the logs. Still, a big improvement. > Thanks John for your hard work! > The problem is probably either: 1) problems with UPAGE swapping. 2) still a timing window for SMP. 3) a subtile bug in page (or other resource) locking, that deadlocks the system. I'll try to look into it, but I will be very busy this next week. Thanks for the feedback, and it seems to me that the code is getting very close to being correct!!! John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message