Date: Sat, 26 Nov 2005 03:06:29 +0100 From: =?ISO-8859-1?Q?Eirik_=D8verby?= <ltning@anduin.net> To: stable@freebsd.org Subject: Reduced java/tomcat performance 6-beta3 -> 6-stable ? Message-ID: <93F6B911-8C64-4F5C-81F9-80EC271ED298@anduin.net> Resent-Message-ID: <D950F8C5-44EB-4525-B48D-0C5AB55EE5AB@anduin.net>
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[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
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