From owner-freebsd-performance@FreeBSD.ORG Sun Jun 22 10:17:03 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 935D637B401 for ; Sun, 22 Jun 2003 10:17:03 -0700 (PDT) Received: from mailout11.sul.t-online.com (mailout11.sul.t-online.com [194.25.134.85]) by mx1.FreeBSD.org (Postfix) with ESMTP id BEB0143F3F for ; Sun, 22 Jun 2003 10:17:02 -0700 (PDT) (envelope-from Alexander@Leidinger.net) Received: from fwd11.aul.t-online.de by mailout11.sul.t-online.com with smtp id 19U8SS-0005Rg-09; Sun, 22 Jun 2003 19:16:52 +0200 Received: from Andro-Beta.Leidinger.net (EG4M2OZQQeqY+eq23bwbZFXspcebhf5Fcxu9gebtdm0ZEV-sduc-EV@[80.131.120.204]) by fmrl11.sul.t-online.com with esmtp id 19U8SK-07Pllw0; Sun, 22 Jun 2003 19:16:44 +0200 Received: from Magelan.Leidinger.net (Magelan [192.168.1.1]) h5MHGhI8022752; Sun, 22 Jun 2003 19:16:43 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Received: from Magelan.Leidinger.net (netchild@localhost [127.0.0.1]) by Magelan.Leidinger.net (8.12.9/8.12.9) with SMTP id h5MHGglm055981; Sun, 22 Jun 2003 19:16:42 +0200 (CEST) (envelope-from Alexander@Leidinger.net) Date: Sun, 22 Jun 2003 19:16:42 +0200 From: Alexander Leidinger To: Eric Anderson Message-Id: <20030622191642.3f3532bd.Alexander@Leidinger.net> In-Reply-To: <3EF1AE85.2080505@centtech.com> References: <741132145421.20030619172208@nojabrsk.ru> <3EF1AE85.2080505@centtech.com> X-Mailer: Sylpheed version 0.8.10claws (GTK+ 1.2.10; i386-portbld-freebsd5.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Seen: false X-ID: EG4M2OZQQeqY+eq23bwbZFXspcebhf5Fcxu9gebtdm0ZEV-sduc-EV@t-dialin.net cc: s_porotnikov@nojabrsk.ru cc: freebsd-performance@freebsd.org Subject: Re: freebsd-performance Digest, Vol 4, Issue 9 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Jun 2003 17:17:03 -0000 On Thu, 19 Jun 2003 07:37:25 -0500 Eric Anderson wrote: > Interestingly enough, I found FreeBSD 4.8 to be faster at local disk > writes than FreeBSD 5.1. About 50% faster. 5.1 isn't tuned yet to deliver high performance, so it isn't a surprise to see a lower performance than 4.x. But 50% is much... are you sure you did the test under the same conditions (e.g. are you sure the write cache was off (or on) in both cases, no debugging switches activated in the kernel/userland)? Bye, Alexander. -- Yes, I've heard of "decaf." What's your point? http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7