Slow performance of OC4J application.
Posted on 2003-11-03
We have an application where the server runs on a system with the following configuration:
SunOS redwood 5.8 Generic_108528-14 sun4u sparc SUNW,Ultra-EnterpriseSystem = SunOS
Node = redwood
Release = 5.8
KernelID = Generic_108528-14
Machine = sun4u
OEM# = 0
Origin# = 1
NumCPU = 12
The version of Java on that system is:
java version "1.3.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_03-b03)
Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)
We have the OC4J (version 22.214.171.124.0) and Oracle database installed on this system.
The Java client application runs on Windows 2000.
We are facing the problem that the application runs very slowly. There are instances when the UI greys out for sometime and after a few minutes comes out with the result. Our application runs several queries to the database and this is usually done by calling appropriate interfaces in EJB components (Stateless Session beans) deployed on the server.
Any idea why the performance is very slow and how this can be improved?