Date: Thu, 07 Nov 2002 11:02:18 +0100 From: Erwan Arzur <erwan@netvalue.com> To: Aditya <aditya@grot.org> Cc: freebsd-java@freebsd.org Subject: Re: preventing the JVM from swapping to disk Message-ID: <3DCA3A2A.7030904@netvalue.com> References: <20021107023304.GA75921@mighty.grot.org>
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Aditya wrote: > On a server solely dedicated to running Tomcat with the linux-jdk1.3 and 1Gig > of RAM I'd like to prevent the JVM from ever swapping to disk. The preferred > behaviour when it runs out of memory is for the JVM to exit (it will be > restarted by a script). I'm allocating the JVM 700M for the min and max heap; > less than 100M is used by FreeBSD and the rest is occupied by the JVM. > One piece of advice before blindly set -Xmx700m -Xms700m, make sure you read this article : http://www.javaworld.com/javaworld/jw-01-2002/jw-0111-hotspotgc_p.html and all assorted references at the end of it. I really think FreeBSD VM subsystem requires you to allocate swap space. I guess you'll get suboptimal performance results by simply disabling it. don't forget your dear google friend ;-) http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=utf-8&q=freebsd+disabling+swap&btnG=Google+Search -- UNIX *IS* user friendly. It's just selective about who its friends are. --unknown To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-java" in the body of the message
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