Date: Wed, 21 Dec 2011 10:03:57 +0100 From: Francois Tigeot <ftigeot@wolfpond.org> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: "Samuel J. Greear" <sjg@evilcode.net>, freebsd-performance@freebsd.org, Current FreeBSD <freebsd-current@freebsd.org>, FreeBSD Stable Mailing List <freebsd-stable@freebsd.org>, kernel@crater.dragonflybsd.org Subject: Re: Benchmark (Phoronix): FreeBSD 9.0-RC2 vs. Oracle Linux 6.1 Server Message-ID: <20111221090357.GA982@sekishi.zefyris.com> In-Reply-To: <20111220232925.GA55953@icarus.home.lan> References: <4EE88343.2050302@m5p.com> <CAFHbX1%2B5PttyZuNnYot8emTn_AWkABdJCvnpo5rcRxVXj0ypJA@mail.gmail.com> <4EE933C6.4020209@zedat.fu-berlin.de> <CAPjTQNEJDE17TLH-mDrG_-_Qa9R5N3mSeXSYYWtqz_DFidzYQw@mail.gmail.com> <20111215024249.GA13557@icarus.home.lan> <4EE9A2A0.80607@zedat.fu-berlin.de> <CADWvR2hpooV4Sdkzor6oHpXWkLCz0z0UxBB_-nnrnYLeUY5oow@mail.gmail.com> <CANY-Wm8DmFxm7xwXfRcyBSu4z6fTOap%2By=Mhx%2BuBP=uJN4g3fw@mail.gmail.com> <4EF1121F.9010209@zedat.fu-berlin.de> <20111220232925.GA55953@icarus.home.lan>
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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
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