From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 28 Aug 2001 06:38:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 28 Aug 2001 06:38:25 -0400 Received: from fe090.worldonline.dk ([212.54.64.152]:12805 "HELO fe090.worldonline.dk") by vger.kernel.org with SMTP id ; Tue, 28 Aug 2001 06:38:17 -0400 Date: Tue, 28 Aug 2001 12:41:26 +0200 From: Jens Axboe To: Christoph Rohland Cc: Linux Kernel , "David S. Miller" Subject: Re: [patch] zero-bounce block highmem I/O, #13 Message-ID: <20010828124125.I642@suse.de> In-Reply-To: <20010827123700.B1092@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 28 2001, Christoph Rohland wrote: > Hi Jens, > > I tested both #11 and #13 on my 8GB machine with sym53c8xx. The > initialization of a SAP DB database takes 20 minutes with 2.4.9 and > with 2.4.9+b13 it took nearly 2.5 hours :-( Hmm that sounds _very_ strange indeed. What does the controller + disk detection info look like? Could you attach vmstat 1 info for pristine and b13 so I can compare the two and get a clue as to what is going on? Thanks. -- Jens Axboe