From owner-freebsd-isp@FreeBSD.ORG Sun Nov 28 21:41:17 2004 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9ED2916A4CE for ; Sun, 28 Nov 2004 21:41:17 +0000 (GMT) Received: from mailout08.sul.t-online.com (mailout08.sul.t-online.com [194.25.134.20]) by mx1.FreeBSD.org (Postfix) with ESMTP id CC41343D39 for ; Sun, 28 Nov 2004 21:41:16 +0000 (GMT) (envelope-from Alexander@Leidinger.net) Received: from fwd01.aul.t-online.de by mailout08.sul.t-online.com with smtp id 1CYWnC-0002Xu-08; Sun, 28 Nov 2004 22:41:15 +0100 Received: from Andro-Beta.Leidinger.net (XKIyAcZHQe7jwgiKNr2CVYu7l2cbec37e-V5GHdj5HmYaaq71PCu6+@[84.128.194.67]) by fmrl01.sul.t-online.com with esmtp id 1CYWn7-0MF2Gm0; Sun, 28 Nov 2004 22:41:09 +0100 Received: from Magellan.Leidinger.net (Magellan.Leidinger.net [192.168.1.1]) iASLf0RA098430; Sun, 28 Nov 2004 22:41:01 +0100 (CET) (envelope-from Alexander@Leidinger.net) Date: Sun, 28 Nov 2004 22:41:49 +0100 From: Alexander Leidinger To: pi@LF.net Message-ID: <20041128224149.43efea05@Magellan.Leidinger.net> In-Reply-To: <20041128082645.GG62738@complx.LF.net> References: <635707213.20041128053727@subhi.com> <20041128082645.GG62738@complx.LF.net> X-Mailer: Sylpheed-Claws 0.9.12b (GTK+ 1.2.10; i386-portbld-freebsd6.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-ID: XKIyAcZHQe7jwgiKNr2CVYu7l2cbec37e-V5GHdj5HmYaaq71PCu6+@t-dialin.net X-TOI-MSGID: f30e6f17-6edd-4969-94d6-35a44c6040b7 cc: freebsd-isp@freebsd.org cc: Subhi S Hashwa cc: lists@complx.LF.net Subject: Re: upgrading from 4.10 to 5.3R, is it worth the upgrade just yet? X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: netchild@FreeBSD.org List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Nov 2004 21:41:17 -0000 On Sun, 28 Nov 2004 09:26:45 +0100 Kurt Jaeger wrote: > Hi! > > > I have couple of 4.10 production boxes. is there any major advantage to > > upgrade to 5.3R ? > > > > or should I just leave a working functioning system alone.. > > Here's a list of reasons why we are currently analysing this option: > o more recent IPsec (probably usable, it wasn't in 4.10) Please define "usable". I hadn't any problems configuring it as a VPN for a customer. > o better threads (unsure, how much better?) 4.x: all threads of a program run on the same CPU (even on a SMP machine) 5.3: the threads of a program run on more than one CPU > o SMP/HTT support improved (unsure, how much -- we have crashes on > some 4.10 systems?) Can you reproduce the crashes (even on 4-stable)? Do you have backtraces? If not: the handbook tells how to obtain one. If you need help to obtain one I'm willing to help (I'm working in Esslingen at least until the end of the year). Regarding HTT: it's only beneficial for special workloads. If you have multiple processes with the same workload which want to use the CPU at the same time, it may be better to disable HTT (we have numbers for MySQL which suggest to disable HTT at least for the benchmark workload). If you mix integer workload with floating-point workload, it should be beneficial to enable HTT. But you should test it instead of blindly following the suggestions. :-) Regarding SMPng: for some workloads we're faster than 4.x, for some we aren't. Bye, Alexander. -- The best things in life are free, but the expensive ones are still worth a look. http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7