Performance, Profiling, & Optimization Tools for Enterprise Java Applications S. Ray Holder Michael J. Donahoo

Project Focus Enhance performance –Identify problems –Load and stress test –Implement/evaluate solutions Improve maintainability –Replace custom solutions –Eliminate boilerplate code Investigate new frameworks

Contest Management System 2.0 ICPC Generalized contest management Production system Modular design Open source technologies Spring (Middleware), Acegi (Security), Hibernate (ORM), JSF (View), Tomcat (Web), MySQL (DB)

Tools of the Trade CPU profiler: JIP Memory profiler: JMX managed bean SQL profiler: Elvyx Custom load/stress testing Framework MySQL/Hibernate

Object Relational Mapping How do we get our object in to and out of a relational database?

ORM Optimizations Lazy fetch –Object graph –Objects –Collections Database optimizations –Indexing –Data placement –Schema Custom queries Caching hints

Entity Security Optimization

Lazy Fetching and Secondary Security Optimization

Future Directions Security model –Maintenance –Performance Next generation frameworks –JBoss Seam 2.0 –Struts 2

Questions