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Full Discussion: Getting CPU utilization of Java processes
Top Forums UNIX for Advanced & Expert Users Getting CPU utilization of Java processes Post 302244149 by cbkihong on Tuesday 7th of October 2008 10:17:22 AM
Old 10-07-2008
You can monitor these kinds of statistics, and more, with Java Management Extensions (JMX). Because the Java Virtual Machine has specific quirks with how memory is utilized (say, separating the memory space into partitions such as heap and non-heap space), just looking at the OS-level resource utilization is not generally adequate. Depending on how you configure, you may either monitor a local process or a Java process running on another system, via a graphical user interface tool such as JConsole (or VisualVM although I cannot get it run properly).

With JMX, you can even write some simple Java program to log selected statistical values periodically on a 24x7 basis and analyse them later offline.

You can refer to this document for an introduction of Java SE management and JMX technology:

- Java SE Monitoring and Management Guide

Or read the JMX specification if you wish to get more in-depth programming knowledge.
 

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LEARN ABOUT MOJAVE

schemagen

schemagen(1)						      General Commands Manual						      schemagen(1)

NAME

       schemagen - Java(TM) Architecture for XML Binding Schema Generator Specification Version: 2.0
       Reference Implementation (RI) Version: 2.0 ea3

   Launching schemagen
       The schema generator can be launched using the appropriate schemagen shell script in the bin directory for your platform.

       The current schema generator can process either Java source files or class files.

       We also provide an Ant task to run the schema generator - see the instructions for using schemagen with Ant.

	  For Solaris/Linux

		% path/to/jaxb/bin/schemagen.sh Foo.java Bar.java ...
		Note: Writing schema1.xsd

	  For WindowsNT/2000/XP

		> path	ojaxbinschemagen.bat Foo.java Bar.java ...
		Note: Writing schema1.xsd

       If your java sources/classes reference other classes, they must be accessable on your system CLASSPATH environment variable, or they need
       to be given to the tool by using the -classpath/-cp options. Otherwise you will see errors when generating your schema.

	  Command Line Options

	     Usage: schemagen [-options ...] <java files>

	     Options:
		 -d <path>	   :  Specify where to place processor and javac generated class files
		 -cp <path>	   :  Specify where to find user specified files
		 -classpath <path> :  Specify where to find user specified files
		 -help		   :  Display this usage message

   Generated Resource Files
       The current schema generator simply creates a schema file for each namespace referenced in your Java classes. There is no way to control
       the name of the generated schema files at this time. For that purpose, use the schema generator ant task.

See Also
	  o JAXB 2.0:

	     * Release Notes @
	       http://java.sun.com/webservices/docs/2.0/jaxb/ReleaseNotes.html

	     * XJC @
	       http://java.sun.com/webservices/docs/2.0/jaxb/xjc.html

	     * XJCTask @
	       http://java.sun.com/webservices/docs/2.0/jaxb/xjcTask.html

	     * SchemaGen @
	       http://java.sun.com/webservices/docs/2.0/jaxb/schemagen.html

	     * schemagenTask @
	       http://java.sun.com/webservices/docs/2.0/jaxb/schemagenTask.html

	     * Sample Apps @
	       http://java.sun.com/webservices/docs/2.0/jaxb/samples.html

	     * Changelog @
	       http://java.sun.com/webservices/docs/2.0/jaxb/changelog2.html

	  o JAXB 1.0.x:

	     * Release Notes @
	       http://java.sun.com/webservices/docs/2.0/jaxb/jaxb-1_0.html

	     * Changelog @
	       http://java.sun.com/webservices/docs/2.0/jaxb/changelog.html

	  o JAXB RI Extensions:

	     * Runtime Properties @
	       http://java.sun.com/webservices/docs/2.0/jaxb/vendorProperties.html

	     * XJC Customizations @
	       http://java.sun.com/webservices/docs/2.0/jaxb/vendorCustomizations.html

	     * Develop Plugins @
	       http://java.sun.com/webservices/docs/2.0/jaxb/developPlugins.html

	  o JAXB RI Schema Languages:

	     * W3C XML Schema @
	       http://java.sun.com/webservices/docs/2.0/jaxb/vendorSchemaLangs.html#xschema

	     * RELAX NG @
	       http://java.sun.com/webservices/docs/2.0/jaxb/vendorSchemaLangs.html#relaxng

	     * DTD @
	       http://java.sun.com/webservices/docs/2.0/jaxb/vendorSchemaLangs.html#dtd

	  o JAXB Community:

	     * Java.net Homepage @
	       http://jaxb.dev.java.net

	     * Developer interest list @
	       https://jaxb.dev.java.net/servlets/ProjectMailingListList

	     * FAQ @
	       https://jaxb.dev.java.net/faq/index.html

								    07 Aug 2006 						      schemagen(1)
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