web application performance monitoring

I want to monitor performance of web application, running in java JVM(Java version 1.5.0_22) using tomcat web server , for a given functionality want to find, methods and sql queries how much time taking for execution. i am looking for setting and free tools available.

See my post in http://www.coderanch.com/t/547036/java/java/Tools-monitoring-JVM#2482212

You could also look at AppDynamics Lite
http://www.appdynamics.com/products-free-download.php

I suggest that you also use the Tomcat Management App - it provides some useful statistics and information on request Threads.

Bill

JAMon can monitor servlet/jsp performance as well as sql performance and it is open source. In fact I just created 3 short videos that explain it and put them on youtube. They are a few minutes long each. Even if you have used JAMon before I suggest watching them as it can do more than most people know.

* JAMon 101 - Intro to Monitoring with JAMon - http://www.youtube.com/watch?v=fKooex0ZPcw
* JAMon reports demo - This shows the type of statistics that are gathered for servlets/jsp's as well as sql and more - http://www.youtube.com/watch?v=BfIuoy8mP5c
* Operating System monitoring - This is a new feature that will be in the next release that lets you monitor your linux/unix/mac scripts with JAMon. - http://www.youtube.com/watch?v=Drf3d9m5zss

Here is a link that explains how to install jamon in tomcat. http://jamonapi.sourceforge.net/http_monitoring.html

I'll paste the steps for tomcat 6 here.

Tomcat 6
* Put jamon-2.7.jar (or higher) in the tomcat 'lib' directory.
* Put jamon.war (or higher) in the tomcat 'webapps' directory.
* Add the following Valve line to Tomcat's server.xml file. The 'Engine' line is used to show context.

For further details go to www.jamonapi.com

By the way the next release of JAMon should be this weekend if all goes well.