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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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rmiregistry(1)						      General Commands Manual						    rmiregistry(1)

NAME
rmiregistry - Java remote object registry SYNOPSIS
rmiregistry [ port ] DESCRIPTION
The rmiregistry command creates and starts a remote object registry on the specified port on the current host. If port number is omitted, the registry is started on port 1099. The rmiregistry command produces no output and is typically run in the background. For example: example% rmiregistry & A remote object registry is a bootstrap naming service that is used by RMI servers on a host to bind remote objects to names. Clients can then look up remote objects and make remote method invocations. The registry is typically used to locate the first remote object on which an application needs to invoke methods. That object in turn pro- vides application-specific support for finding other objects. The methods of the java.rmi.registry.LocateRegistry class are used to get a registry operating on a particular host or host and port. The URL-based methods of the java.rmi.Naming class operate on a registry and can be used to look up a remote object, bind a simple (string) name to a remote object, rebind a new name to a remote object (overriding the old binding), unbind a remote object, and list the URLs bound in the registry. OPTIONS
The following option is supported: -Joption Used in conjunction with any java option, this option passes option (no spaces between -J and option) on to the java inter- preter. SEE ALSO
See (or search java.sun.com) for the following: java.rmi.Naming @ http://java.sun.com/j2se/1.5/docs/api/java/rmi/Naming.html java.rmi.registry.LocateRegistry @ http://java.sun.com/j2se/1.5/docs/api/java/rmi/registry/LocateRegistry.html 23 Apr 2001 rmiregistry(1)
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