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Full Discussion: Tuning Java on LINUX
Top Forums UNIX for Advanced & Expert Users Tuning Java on LINUX Post 302124351 by cbkihong on Saturday 30th of June 2007 12:07:04 AM
Old 06-30-2007
Quote:
Originally Posted by crabbie_upk
4. what is the maximum you can successfully set it to?
=> Currently I could set upto -Xms2588m -Xmx2588m
That's quite good already. If you look at

http://java.sun.com/j2se/1.5.0/docs/...aris/java.html

Look at the documentation for these options, it says Linux platforms are limited to around 2GB, or less. Only SPARC may go beyond the figure.

I have read that some environments such as J2EE application server can achieve some advantage with multiple concurrent VMs, but whether you can use that really depends on your environment.

"Pro Java EE 5 Performance Management and Optimization" by Apress is a must-read for you, if you are managing a JavaEE environment.
 

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JavaServiceWrapper(1)					      General Commands Manual					     JavaServiceWrapper(1)

NAME
wrapper - Jar daemon wrapper USAGE
wrapper <command> <configuration file> [configuration properties] [...] wrapper <configuration file> [configuration properties] [...] (<command> implicitly '-c') wrapper <command> (<configuration file> implicitly 'wrapper.conf') wrapper (<command> implicitly '-c' and <configuration file> 'wrapper.conf') where <command> can be one of: -c --console run as a Console application -v --version print the wrapper's version information. -? --help print this help message -- <args> mark the end of Wrapper arguments. All arguments after the '--' will be passed through unmodified to the java application. <configuration file> is the wrapper.conf to use. Name must be absolute or relative to the location of wrapper [configuration properties] are configuration name-value pairs which override values in wrapper.conf. For example: wrapper.debug=true Please note that any file references must be absolute or relative to the location of the Wrapper executable. JAVA WRAPPER SERVICE DESCRIPTION
The Java Service Wrapper makes very easy to install a Java Application as a daemon process on Unix systems. The Wrapper monitors a JVM (Java Virtual Machine) process and automatically restarts it if it that the JVM has crashed or hung. This process takes just a few seconds once the Wrapper has decided there is a problem. It also gives the ability to handle process priority. AUTHOR
Java Service Wrapper Community Edition 32-bit 3.5.3 Copyright (C) 1999-2010 Tanuki Software, Ltd. All Rights Reserved. http://wrap- per.tanukisoftware.com This manual page was written by Remi Debay <debay.remi@gmail.com>. 10/08/2010 JavaServiceWrapper(1)
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