"jMocha is a framework for timing simple Java operations
accurately in any JVM environment. The benchmark framework
uses sophisticated statistical calculations to make sure that the
benchmark measurements are very accurate and reproducible.
"With jMocha also comes a suite of benchmarks for the framework
that times some virtual machine and operating system services."
"If you are a Java library or bean developer, or a performance
oriented user, and interested in how fast Java operations perform,
or which of the myriad of JVMs out there is the better performer,
you should download jMocha."