Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264257AbTKKFkk (ORCPT ); Tue, 11 Nov 2003 00:40:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264261AbTKKFkk (ORCPT ); Tue, 11 Nov 2003 00:40:40 -0500 Received: from nat-68-172-17-106.ne.rr.com ([68.172.17.106]:35832 "EHLO trip.jpj.net") by vger.kernel.org with ESMTP id S264257AbTKKFki (ORCPT ); Tue, 11 Nov 2003 00:40:38 -0500 Subject: Re: I/O issues, iowait problems, 2.4 v 2.6 From: Paul Venezia To: Andrew Morton Cc: linux-kernel@vger.kernel.org In-Reply-To: <20031110205443.6422259f.akpm@osdl.org> References: <1068519213.22809.81.camel@soul.jpj.net> <20031110195433.4331b75e.akpm@osdl.org> <1068523328.25805.97.camel@soul.jpj.net> <20031110202819.7e7433a8.akpm@osdl.org> <1068524657.25804.110.camel@soul.jpj.net> <20031110205443.6422259f.akpm@osdl.org> Content-Type: text/plain Organization: Message-Id: <1068528589.22809.153.camel@soul.jpj.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.4 Date: 11 Nov 2003 00:29:49 -0500 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1605 Lines: 35 On Mon, 2003-11-10 at 23:54, Andrew Morton wrote: > OK, the IO rates are obviously very poor, and the context switch rate is > suspicious as well. Certainly, testing with the single disk would help. I pulled the secondary, reconfigured to single drives and rebooted. All is now well, performance is right where it should be. 0 0 0 1475924 7052 42384 0 0 0 0 1015 6 0 0 0 1475284 7076 42360 0 0 0 156 1041 311 0 0 0 1475284 7076 42360 0 0 0 0 1016 12 0 0 0 1475284 7076 42360 0 0 0 0 1026 30 2 0 0 1252628 7300 258852 0 0 8 37240 1157 119 0 3 0 1027284 7524 478064 0 0 8 66016 1441 317 1 3 0 818132 7728 682948 0 0 4 70752 1439 202 1 3 0 593236 7944 901760 0 0 4 64576 1452 92 0 4 0 531412 8008 961876 0 0 4 63680 1434 97 1 3 0 455604 8084 1035648 0 0 4 69312 1464 103 0 4 0 388148 8148 1101272 0 0 0 66328 1442 141 0 4 0 308172 8228 1179120 0 0 4 69964 1446 100 0 5 0 257548 8280 1228436 0 0 4 67548 1460 148 1 2 0 195340 8356 1288948 0 0 0 63444 1452 291 0 5 0 115532 8436 1367884 0 0 4 73896 1448 319 -Paul - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/