From owner-freebsd-stable@FreeBSD.ORG Wed Dec 21 09:04:06 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 53724106564A for ; Wed, 21 Dec 2011 09:04:06 +0000 (UTC) (envelope-from ftigeot@wolfpond.org) Received: from sabik.zefyris.com (sabik.zefyris.com [IPv6:2001:7a8:bd07:2::254]) by mx1.freebsd.org (Postfix) with ESMTP id AE1238FC18 for ; Wed, 21 Dec 2011 09:04:05 +0000 (UTC) Received: from sekishi.zefyris.com (sekishi.zefyris.com [IPv6:2001:7a8:bd07:2:219:d1ff:fe81:e03]) by sabik.zefyris.com (8.14.5/8.14.5) with ESMTP id pBL93wmI022217; Wed, 21 Dec 2011 10:03:58 +0100 (CET) Date: Wed, 21 Dec 2011 10:03:57 +0100 From: Francois Tigeot To: Jeremy Chadwick Message-ID: <20111221090357.GA982@sekishi.zefyris.com> References: <4EE88343.2050302@m5p.com> <4EE933C6.4020209@zedat.fu-berlin.de> <20111215024249.GA13557@icarus.home.lan> <4EE9A2A0.80607@zedat.fu-berlin.de> <4EF1121F.9010209@zedat.fu-berlin.de> <20111220232925.GA55953@icarus.home.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20111220232925.GA55953@icarus.home.lan> User-Agent: Mutt/1.5.21 (2010-09-15) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (sabik.zefyris.com [IPv6:2001:7a8:bd07:2::254]); Wed, 21 Dec 2011 10:03:59 +0100 (CET) Cc: "Samuel J. Greear" , freebsd-performance@freebsd.org, Current FreeBSD , FreeBSD Stable Mailing List , kernel@crater.dragonflybsd.org Subject: Re: Benchmark (Phoronix): FreeBSD 9.0-RC2 vs. Oracle Linux 6.1 Server X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Dec 2011 09:04:06 -0000 On Tue, Dec 20, 2011 at 03:29:25PM -0800, Jeremy Chadwick wrote: > > This also interested me: > > * Linux system crashed > http://leaf.dragonflybsd.org/mailarchive/kernel/2011-11/msg00008.html > > * OpenIndiana system crashed same way as Linux system > http://leaf.dragonflybsd.org/mailarchive/kernel/2011-11/msg00017.html > > I cannot help but wonder if the Linux and OpenIndiana installations were > more stressful on the hardware -- getting more out of the system, maybe > resulting in increased power/load, which in turn resulted in the systems > locking up (shoddy PSU, unstable mainboard, MCH problems, etc.). > > My point is that Francois states these things in such a way to imply > that "DragonflyBSD was more stable", Same thing can be said for FreeBSD, only Linux and OpenIndiana crashed reliably if I remember correctly. > when in fact I happen to wonder the > opposite point -- that is to say, Linux and OpenIndiana were trying to > use the hardware more-so than DragonflyBSD, thus tickled what may be a > hardware-level problem. I actually ran the benchmarks on two different machines with the same hardware -- brand new Supermicro boxes with ECC memory and no cut corners. Since then, I've found I could stop the Linux crashes by disabling some options in the BIOS setup: - advanced ACPI settings (don't remember exactly which ones) - and a new WHEA one. WHEA means Windows Hardware Error Architecture. For all I know, it may have been the only culprit but I didn't have time to verify if the machines also ran fine with only this option disabled. -- Francois Tigeot