From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: SCSI Disk layer performance Date: Thu, 22 Jan 2004 13:57:03 +0000 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20040122135703.A11283@infradead.org> References: <1074720667.19927.384.camel@localhost.lnxi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from phoenix.infradead.org ([213.86.99.234]:19977 "EHLO phoenix.infradead.org") by vger.kernel.org with ESMTP id S263983AbUAVN5J (ORCPT ); Thu, 22 Jan 2004 08:57:09 -0500 Content-Disposition: inline In-Reply-To: <1074720667.19927.384.camel@localhost.lnxi.com>; from chrisw@lnxi.com on Wed, Jan 21, 2004 at 02:31:08PM -0700 List-Id: linux-scsi@vger.kernel.org To: Chris Worley Cc: linux-scsi@vger.kernel.org On Wed, Jan 21, 2004 at 02:31:08PM -0700, Chris Worley wrote: > My FC array seems to be faster than Linux can handle. > > Even though I'm using FC-2 cards, Linux seems to put > an artificial limit at FC-1 speeds. This is true in two cases: What kernel tree do you use? If you're looking for decent scsi performance use linux 2.6 or the SuSE/RH vendor trees. Stock Linux 2.4 is basically unusable for higher scsi loads in SMP enviroments.