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JProfiler is a powerful tool that you can use to profile Java based applications in a dynamic way and enables you to analyze them in hopes of optimizing performance.

With it you are able to profile a locally running JMV, an application server (local or remote), a Java Web Start application and even applets that are running in your browser just as long as they are supported by the Java plugin.

In case you’re having a tricky time figuring out how everything works and what you need to do in order to profile an app, JProfiler offers you a substantial amount of help from the first to the last steps of the process. It displays a more than comprehensive interface that should pose no problems to you if you’re familiar to how a Java application works and how it’s structured.

While performing the analysis, JProfiler makes all the information neatly available in categories such as ‘Live Memory’, ‘Heal walker’, ‘CPU views’, ‘Threads’, ‘Monitors & locks’, ‘Telemetries’ and ‘Databases’. Each of these holds and presents the data in detailed graphs and explicit numbers.

In an active session, JProfiler is able to track and constantly display updated views of how memory is used by the classes and packages of objects. At any time you are able to mark current values and compare them with new ones for the entire duration of the process.

Using the ‘Heap Walker’, you are able to create a snapshot of the entire heap and extract detailed information about its entire structure. For the object sets selected you can choose from classes, allocations, biggest objects, references and time views.

Since memory use is a key factor in making a successful and practical application, JProfiler provides you with a simple way of recording the call tree. It can create and display for you a cumulative top-down tree that showcases all the call sequences in different methods.

In closing, with the above to consider and much more to discover, JProfiler is a highly practical tool that you can use to create detailed profiles for Java applications.