General Performance Tuning Notes

There are a number of areas and layers to tune in a webapp, and it's always best to do optimization after using a profiler. We may pick up a license from YourKit .

Web tuning

Apache

• load balancing - http://httpd.apache.org/docs/2.2/mod/mod_proxy_balancer.html

Struts 2

• http://struts.apache.org/2.x/docs/performance-tuning.html

Database tuning

PostgreSQL

• http://www.revsys.com/writings/postgresql-performance.html
• http://wiki.postgresql.org/wiki/Performance_Optimization

Hibernate

• http://www.hibernate.org/hib_docs/reference/en/html/performance.html
• more hibernate tuning: http://www.infoq.com/articles/hibernate_tuning