From owner-freebsd-questions@FreeBSD.ORG Tue Jun 2 10:54:52 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6F1C51065677 for ; Tue, 2 Jun 2009 10:54:52 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id BBA6E8FC1B for ; Tue, 2 Jun 2009 10:54:50 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1]) by wojtek.tensor.gdynia.pl (8.14.3/8.14.3) with ESMTP id n52Asicj036845; Tue, 2 Jun 2009 12:54:44 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.14.3/8.14.3/Submit) with ESMTP id n52AshC0036842; Tue, 2 Jun 2009 12:54:43 +0200 (CEST) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Tue, 2 Jun 2009 12:54:43 +0200 (CEST) From: Wojciech Puchar To: Boris Samorodov In-Reply-To: <54837285@bb.ipt.ru> Message-ID: References: <20090601185419.GA92199@atsuko> <54837285@bb.ipt.ru> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: Chris Nicholls , freebsd-questions@freebsd.org Subject: Re: IBM x345 Dual 2.8Ghz Xeon poor performance 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: Tue, 02 Jun 2009 10:54:53 -0000 >> to build a kernel! I've spent quite a bit of spare time trawling archives >> etc for any hints to the reason why. > > I've got mothing similar with my Intel server. Then it was a memory > bank to blame. The server has been fine after replacing that bank. with no ECC machine it would simply crash. With ECC - it was probably constantly doing ECC that's why it was damn slow. anyway - can hardware give any info for OS about how often ECC corrects errors?