This article was edited and republished from the original source.
by Andrew C. Oliver
At JBoss, I was asked to help write some training materials for “performance tuning JBoss/Java on RHEL/Linux”. It wasn’t a very easy task because I knew the audience would primarily be composed of administrators who might not be interested in the whole system, compounded with the fact that most people mean performance and scalability when they say performance. What I would do to make one single client connect and perform its operations as quickly as possible on a single server is inherently very different from what I’d do for 10000 users connecting to a cluster. The type of performance tuning that I do for an application with no users and all messaging is very different from what I do for a standard web application-type system.
