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Analyzing the performance of Java EE apps using Netbeans Profiler

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CIOL Bureau
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To profile a Java
EE application the way it has been explained here, there is no need
to have the source code of the application. The only requirement is that the
Java EE application that is intended to be profiled should have been compiled
with -g option.


Setting up the
environment:




  1. style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana>Install JDK1.5 available @ href="http://java.sun.com/j2se/1.5.0/download.jsp">http://java.sun.com/j2se/1.5.0/download.jsp

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  • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana>Install Netbeans Platform 5.0 (either nightly or
    latest RC or Java EE version of it) available @ href="http://www.netbeans.org/downloads/index.html">http://www.netbeans.org/downloads/index.html.
    I used Netbeans 5.0 RC2 for my experiment.

  • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana>Install the latest and greatest Netbeans Profiler
    available @ href="http://profiler.netbeans.org/download/index.html">http://profiler.netbeans.org/download/index.html.
    I used RC2.

  • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana>Install latest GlassFish server available @ href="http://glassfish.dev.java.net/">http://glassfish.dev.java.net

  • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana>Deploy your Java EE application on GlassFish server.
    Make sure your application was compiled with -g option so that all the debug
    information are generated. Profiler makes use of these debug informations.

    • Brief
    description of the application we are profiling:


    size=2>The sample application is a stateless session bean which comes bundled as
    part of SJSAS samples. The application has the following main
    components:




    • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana>GreeterView.jsp

    • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana> size=2>samples.ejb.stateless.simple.servlet.GreeterServlet

    • style="BACKGROUND: none transparent scroll repeat 0% 0%; MARGIN-BOTTOM: 0in"> face=Verdana> size=2>samples.ejb.stateless.simple.ejb.GreeterEJB

    size=2>This is how the application works : When the application is accessed,
    GreeterView.jsp brings up a form wherein one can enter the name and click
    “Process” button. On clicking the “Process” button the form posts the name to
    GreeterServlet. GreeterServlet invokes GreeterEJB's getGreeting() method and a
    personalized greeting returned from the EJB is presented to the
    user.

    Steps for
    profiling the application

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