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MoccaCPU is a CPU stress testing tool written in Java. It uses the Monte-Carlo-Algorithm to calculate approximate values of π (Pi) during the test. Mutiple threads can be started to use the full capacity of all given CPU cores.
Boest is an application for stress testing an SAP BusinessObjects Enterprise deployment. It launches a series of tests in parallel from which we can measure performance of the BOE system
A Portable Thin Client & Server Pair for XA / 2PC Testing
A portable testing tool to validate the configuration of XA and two-phase commit for Java EE 6 Containers. The tool permits the stress-testing, performance characterization and correct transaction semantics of distributed transactions across Three XA resource managers by Exception Injection. The thin-client can be run from the command-line or inside the IDE.
JDistUnit is a test framework for distributed unit testing with Java (think "JUnit on multiple computers at once"), useful for load and stress testing. Features hot deployment of test cases to the remote test servers.
Perftest is an library designed to work with JUnit and other unit testing libraries to facilitate performancetesting. It includes decorators which allow for timed tests, load tests, stress testing as well as logging and reporting.