Performance, Profiling, & Performance, Profiling, & Optimization Tools forOptimization Tools forEnterprise Java ApplicationsEnterprise Java Applications

S. Ray Holder

Michael J. Donahoo

Project FocusProject 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 2.0Contest Management System 2.0

ICPCGeneralized contest managementProduction systemModular designOpen source technologies

Spring (Middleware), Acegi (Security), Hibernate (ORM), JSF (View), Tomcat (Web), MySQL (DB)

Tools of the TradeTools of the Trade

CPU profiler: JIPMemory profiler: JMX managed beanSQL profiler: ElvyxCustom load/stress testing

Framework MySQL/Hibernate

Object Relational MappingObject Relational Mapping

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

ORM OptimizationsORM Optimizations

Lazy fetch– Object graph– Objects– Collections

Database optimizations– Indexing– Data placement– Schema

Custom queries Caching hints

Entity Security OptimizationEntity Security Optimization

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Lazy Fetching and Secondary Lazy Fetching and Secondary Security OptimizationSecurity Optimization

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Future DirectionsFuture Directions

Security model– Maintenance– Performance

Next generation frameworks– JBoss Seam 2.0– Struts 2

QuestionsQuestions