From owner-freebsd-stable@FreeBSD.ORG Sat Nov 26 02:07:05 2005 Return-Path: X-Original-To: stable@freebsd.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 716C516A41F for ; Sat, 26 Nov 2005 02:07:05 +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 070E543D64 for ; Sat, 26 Nov 2005 02:07:02 +0000 (GMT) (envelope-from ltning@anduin.net) Received: from ranger.anduin.net ([81.0.162.52] helo=[192.168.1.112]) by anduin.net with esmtpa (Exim 4.50 (FreeBSD)) id 1EfpSv-000MFB-J9 for stable@freebsd.org; Sat, 26 Nov 2005 03:07:01 +0100 Mime-Version: 1.0 (Apple Message framework v746.2) Content-Transfer-Encoding: 7bit Message-Id: Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed To: stable@freebsd.org From: =?ISO-8859-1?Q?Eirik_=D8verby?= Date: Sat, 26 Nov 2005 03:06:29 +0100 X-Mailer: Apple Mail (2.746.2) Cc: Subject: Reduced java/tomcat performance 6-beta3 -> 6-stable ? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 26 Nov 2005 02:07:05 -0000 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