Performance improvements over previous versions

 

WAS V5.1 contains a significant set of improvements over the initial release of WebSphere® Version 5.0 and the incremental releases that followed.

Performance improvements in V5.1 result from the following:

Java version 1.4.1 Provides significant performance improvement due to an improved JIT, new garbage collector features that allow more parallel processing, and other JVM enhancements.
EJB container and Transaction manager Features a redesign of critical paths and improved persistence options for improved EJB performance due to reduced path length and more efficient algorithms.
Web services Provides performance improvements from enhancements, more efficient logic, and improved algorithms in:

Other V5.1 contains miscellaneous performance improvements to the Servlet Engine and other WebSphere® components.

Overall, performance gains for key design patterns were:

  1. EJB - average of 26% increase across all platforms
  2. Web Services - average of 30 to 50% for JavaBeans to EJB
  3. 50% faster, driving Web services to EJB primitives for large payloads
  4. 30% faster, driving Web services to JavaBeans primitives for large and small payloads

Existing customer applications will show improved performance, particularly applications that use:

  1. EJBs
  2. Messaging
  3. Web Services

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® IBM is a trademark of the IBM Corporation in the United States, other countries, or both.