Obix Labs have announced the release of version 1.0.2 of the Epsilon performance/latency monitoring library. Epsilon allows you to define performance criterion for your applications and to monitor these during the application’s lifetime. Its API is as simple as that of a common logger. It even provides annotations support,
thereby removing the need to use its API directly. Its other documented benefits are as follows:

  • Monitoring via annotation (@MonitoredByEpsilon)
  • Support for monitoring aspects (Spring AOP / AspectJ)
  • Statistics collection/persistence
  • Lightweight and easy to use performant
  • Support for custom notifications, e.g. log alerts, email etc
  • Easy to extend
  • Free and open source

For more details, see the link: http://www.obix-labs.com/display/jsp/technology/epsilon.jsp