From owner-freebsd-amd64@FreeBSD.ORG Mon Nov 28 13:33:23 2005 Return-Path: X-Original-To: amd64@freebsd.org Delivered-To: freebsd-amd64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3835D16A429 for ; Mon, 28 Nov 2005 13:33:23 +0000 (GMT) (envelope-from ltning@anduin.net) Received: from anduin.net (anduin.net [212.12.46.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id A135D43D67 for ; Mon, 28 Nov 2005 13:31:41 +0000 (GMT) (envelope-from ltning@anduin.net) Received: from eirik.unicore.no ([213.225.74.166] helo=[10.0.16.10]) by anduin.net with esmtpa (Exim 4.50 (FreeBSD)) id 1Egj6B-000OoN-Gs for amd64@freebsd.org; Mon, 28 Nov 2005 14:31:15 +0100 Resent-Message-Id: Mime-Version: 1.0 (Apple Message framework v746.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Resent-Date: Mon, 28 Nov 2005 14:31:14 +0100 Message-Id: <93F6B911-8C64-4F5C-81F9-80EC271ED298@anduin.net> Content-Transfer-Encoding: 7bit Resent-To: amd64@freebsd.org From: =?ISO-8859-1?Q?Eirik_=D8verby?= Resent-From: =?ISO-8859-1?Q?Eirik_=D8verby?= Date: Sat, 26 Nov 2005 03:06:29 +0100 To: stable@freebsd.org X-Mailer: Apple Mail (2.746.2) Cc: Subject: Reduced java/tomcat performance 6-beta3 -> 6-stable ? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Nov 2005 13:33:23 -0000 [Cross-posting after lack of response on -stable] Hi all, are there any obvious changes between 6.0-BETA3 and 6.0-RELEASE / 6.0- STABLE that I should be aware of, that could cause a quite noticeable decline in performance (and a change in performance patterns) for java/tomcat? On a BETA-3 system I'm seeing, with the particular application we're running, about 28 transactions/second over a 10 minute interval. With -RELEASE and -STABLE I'm lucky to reach 24, and it'll usually wobble around 20. Another oddity is that where the BETA-3 system starts out with good performance from the beginning when running load tests, the -RELEASE and -STABLE systems need a good 20 seconds to reach their "max", starting out very low (3-10 transactions/second for the first 10 seconds or so). This is on HP DL385 servers with dual 2.4ghz Opteron CPUs, running FreeBSD-amd64 from 15kRPM drives in cached RAID. Hardware and software configuration (apart from the base system), network configuration and latencies, database access, etc. is 100% equal on all systems. Any ideas? Thanks, /Eirik