Optimizing and Profiling

• Obvious stuff should be done early

  • Coarse grain EJB calls
  • Caching EJB handles
  • Don't cache object Handles
  • Use StringBuffer for concats, instead of Strings
  • Write Byte/Char arrays to sockets, instead of Strings - its much faster
  • If JDK 1.4+, lookout for Bug #4724129 (StringBuffer Memory Leak)
    • Appeared in 1.4.1, Fixed in 1.4.1_04, 1.4.2RC

Notes: