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Cougaar Memory Profiler - A Java memory profiler using bytecode instrumentation. The profiler is written entirely within Java (no JVMPI/JNI) and can be configured to minimize profiling overhead. [Open Source]
cvprof - Java coverage profiler to report what parts of code were not executed; during unit testing, for example. It is a rewrite of JVMDICover. [Open source, LGPL]
Develop WAP applications with Java servlets and JavaServer Pages - An Article reviewing the GUI-based tool PerfAnal for analyzing the performance of applications on the JavaTM 2 Platform. By Nathan Meyers.
Eclipse Profiler Plugin - A plugin for the Eclipse platform which allows Java code profiling. [Open source, Common Public License]
Enerjy Software - A suite of software tools for Java developers to provide code analysis, and profiling for memory, performance and thread deadlocks. [Commercial]
Extensible Java Profiler (EJP) - A profiling tool for Java with a scalable and extensible architecture, allowing its usage for exotic programming languages that use a Java backend. [Open source, GPL]
GCViewer - Displays graphically statistics about the garbage collection activity during a program run. [Open Source, LGPL]
HPjmeter - Platform-independent tool from Hewlett Packard which helps detect performance bottlenecks by graphically displaying profiling data. [Freeware]
Java Performance TestClient - A tool for testing the performance of Java code by runinng a specific part of code many times by a different number of threads. It comes with a Swing GUI for graphical configuration and result representation. [Open Source, GPL]
JavaTreeProfiler - JVMPI-based profiler with microsecond resolution and XML output. [GPL]
JProbe - A set of tools that are useful in profiling and working with Java systems. The suite includes a profiler and threadalyzer, as well as tools for profiling server performance remotely. Trial version of some tools are available. [Commercial]
jProf - Helps identify excessive processor usage, memory usage, and synchronization in Java programs. Written in C++; available for Solaris and NT 4.0. The JVM must support JVMPI. [Open Source, GPL/LGPL]
jProf Viewer - Viewer for the old files created by the old java profiler (-prof). [Open source, LGPL]
JProfiler - An all-purpose Java profiling suite targeted at J2EE and J2SE applications. It features CPU profiling, memory profiling, thread profiling and VM telemetry information. [Commercial, trial version]
Mike's Java Profiler - A performance profiler for Java programs. It collects statistics about accumulated CPU time used by each stack frame in the profiled program and presents the collected data in a GUI. [Open source, GPL]
ProfileViewer - Reads profiling information output by Sun's heap profiler (invokable by a command-line option of the java interpreter) and displays it for easy interpretation. [Open Source, GPL]
YourKit - A CPU and memory Java Profiler with J2EE/J2ME support, 64 Bit capability and IDE integration for various major Java IDEs. [Commercial, trial version]