From owner-freebsd-questions@FreeBSD.ORG Wed Jan 18 02:38:18 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AA76016A41F for ; Wed, 18 Jan 2006 02:38:18 +0000 (GMT) (envelope-from mbarnett@measuremap.com) Received: from ms-smtp-01-eri0.texas.rr.com (ms-smtp-01.texas.rr.com [24.93.47.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4FDB643D45 for ; Wed, 18 Jan 2006 02:38:17 +0000 (GMT) (envelope-from mbarnett@measuremap.com) Received: from [172.16.1.3] (cpe-70-112-96-145.austin.res.rr.com [70.112.96.145]) by ms-smtp-01-eri0.texas.rr.com (8.12.10/8.12.7) with ESMTP id k0I2cEH9006140 for ; Tue, 17 Jan 2006 20:38:14 -0600 (CST) Mime-Version: 1.0 (Apple Message framework v746.2) In-Reply-To: <20060118010418.GA95598@xor.obsecurity.org> References: <47A794C0-FE22-46FC-9D81-BCF3359CBD61@measuremap.com> <20060118010418.GA95598@xor.obsecurity.org> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <0F01FAC2-09A7-47EC-AB05-B75564FC2433@measuremap.com> Content-Transfer-Encoding: 7bit From: Michael Barnett Date: Tue, 17 Jan 2006 20:38:08 -0600 To: freebsd-questions@freebsd.org X-Mailer: Apple Mail (2.746.2) X-Virus-Scanned: Symantec AntiVirus Scan Engine Subject: Re: PAE causing system crashes X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jan 2006 02:38:18 -0000 It ran fine when we were only throwing a few dozen qps at it... when we tried to throw about 350qps its way, it was much much slower... slower than our existing server with significantly fewer resources available. I never could figure out what the issue was... tried recompiling with different options, allocating more and less memory to mysql (really to innodb as all our tables are innodb), and a number of system tweaks to no avail. Are you running it on an opteron, or on a xeon? I have heard things go much smoother on AMD hardware. Anyways.. the damage is done. We are back on i386 and I just need to make it go! Right now i am just running with the stable non-PAE kernel that limits access to 4G of memory while i work this out. -m On Jan 17, 2006, at 7:04 PM, Kris Kennaway wrote: > On Tue, Jan 17, 2006 at 01:47:30PM -0600, Michael Barnett wrote: >> I have 3 dell machines with 2x xeon procs, 8G of ram, and a half >> terabyte raid 5. I attempted to run the AMD64 distribution on these >> boxes which was fine for everything except mysql, (which is all these >> boxes are going to do) so I reinstalled 5.4 i386. > > AFAIK mysql runs fine on amd64, so what was your problem with it? > > Kris