JProfiler is an award-winning all-in-one Java profiler. JProfiler's intuitive GUI helps you find performance bottlenecks, pin down memory leaks and resolve threading issues. Here are some key features of "JProfiler": Live profiling of a local session: · Once you define how your application is started, JProfiler can profile it and you immediately see live data from the profiled JVM. To eliminate the need for session configuration, you can use one of the many IDE plugins to profile the application from within your favorite IDE. Live profiling of a remote session: · By modifying the VM parameters of the java start command you can get any Java application to listen for a connection from the JProfiler GUI. The profiled application can not only run on your local computer, JProfiler can attach to a profiled application over the network. In addition, JProfiler provides numerous integration wizards for all popular application servers that help you in setting up your application for profiling. Offline profiling: · You do not have to connect with the JProfiler GUI to the profiled application in order to profile it: With offline profiling you can use JProfiler's powerful trigger system or the JProfiler API to control the profiling agent and save snapshots to disk. At a later time you can open these snapshots in the JProfiler GUI or programmatically export profiling views with the command line export tool or the export ant task. Snapshot comparisons: · In JProfiler, you can save a snapshot of all current profiling data to disk. JProfiler offers a rich comparison facility to see what has changed between two or more snapshots. Alternatively you can create comparison reports programmatically with the command line comparison tool or the comparison ant task. Viewing an HPROF snapshot: · JProfiler can open HPROF snapshots that have been taken with JVM tools such as jconsole or jmap or that have been triggerd by the -XX:+HeapDumpOnOutOfMemoryError JVM parameter. Memory profiling: · JProfiler's memory view section offers dynamically updated views on memory usage and views that show information about allocations spots. All views have several aggregation levels and can show live and garbage collected objects. All objects: · Shows classes or packages of all objects on the heap with instance counts and size information. You can mark current values and show differences. Recorded objects: · Shows classes or packages of all recorded objects. You can mark current values and show differences. Allocation call tree: · Shows a call tree or methods, classes, packages or Java EE components with annotated allocations of selected classes. Allocation hot spots: · Shows a list of methods, classes, packages or Java EE components that allocate selected classes. You can mark current values and show differences. The tree of backtraces can be shown for each hot spot. Class tracker: · Shows a timeline with a graph of instance counts for selected classes.