From owner-freebsd-alpha Wed Sep 4 6: 5: 4 2002 Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9E49537B401 for ; Wed, 4 Sep 2002 06:05:00 -0700 (PDT) Received: from mail.speakeasy.net (mail14.speakeasy.net [216.254.0.214]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2ED6D43E75 for ; Wed, 4 Sep 2002 06:04:58 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: (qmail 2377 invoked from network); 4 Sep 2002 13:05:18 -0000 Received: from unknown (HELO server.baldwin.cx) ([216.27.160.63]) (envelope-sender ) by mail14.speakeasy.net (qmail-ldap-1.03) with DES-CBC3-SHA encrypted SMTP for ; 4 Sep 2002 13:05:18 -0000 Received: from laptop.baldwin.cx (laptop.baldwin.cx [192.168.0.4]) by server.baldwin.cx (8.12.5/8.12.5) with ESMTP id g84D4tBv007516; Wed, 4 Sep 2002 09:04:55 -0400 (EDT) (envelope-from jhb@FreeBSD.org) Message-ID: X-Mailer: XFMail 1.5.2 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 Date: Wed, 04 Sep 2002 09:04:55 -0400 (EDT) From: John Baldwin To: alpha@FreeBSD.org, peter@FreeBSD.org Subject: FYI: Buffer cache fix gave major speedup Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On the DS20 I have here, Peter's fix to basically enable the buffer cache gave me about a 38% performance increase for a buildworld -j 2 on current: Before: -------------------------------------- build started at 15:11:08 on 08/28/02 build finished at 18:43:05 on 08/28/02 -------------------------------------- Which is a total time of 3:31:57 After: -------------------------------------- build started at 22:41:31 on 09/03/02 build finished at 00:51:46 on 09/04/02 -------------------------------------- Which is a total time of 2:10:15 If this bug exists in 4.x we should really fix it there as well. -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message