Perfmon4j is a suite of performance monitoring tools that are intended to be used to diagnose performance bottlenecks and monitor throughput and response time in production Java applications. Its main features include servlet response time monitoring, detailed thread trace sampling, Java instrumentation that enables Package, Class, and Method monitoring without code modification, snapshot monitoring of system metrics including Garbage Collection, Memory Pools, etc., an API for applying additional monitoring points via method annotations or in-line timers, and support for dynamically enabling monitors in running applications.
W-Meter is a tool for testing the conformance and evaluating the performance of 802.11 products. The tool is meant for injecting arbitrary frames to test the conformance of any wifi product. The tool has templates for generating various kinds of frames which can be customized for generation of specific frames. The tool can be used to elicit responses from other wifi cards to check the conformance of the card to the protocol. At present, 802.11g frames are completed.