Book Image

Oracle SOA Suite 11g Performance Tuning Cookbook

Book Image

Oracle SOA Suite 11g Performance Tuning Cookbook

Overview of this book

Oracle SOA Suite 11g forms the heart of many organisations' Service Oriented Architecture. Yet for such a core component, simple information on how to tune and configure SOA Suite and its infrastructure is hard to find. Because Oracle SOA Suite 11g builds on top of a variety of infrastructure components, up until now there has been no one single complete reference that brings together all the best practices for tuning the whole SOA stack. Oracle SOA Suite 11g Performance Tuning Cookbook contains plenty of tips and tricks to help you get the best performance from your SOA Suite infrastructure. From monitoring your environment so you know where bottlenecks are, to tuning the Java Virtual Machine, WebLogic Application Server, and BPEL and BPMN mediator engines, this book will give you the techniques you need in a easy to follow step-by-step guide. Starting with how to identify problems, and building on that with sections on monitoring, testing, and tuning, the recipes in this book will take you through many of the options available for performance tuning your application. There are many considerations to make when trying to get the best performance out of the Oracle SOA Suite platform. This performance Cookbook will teach you the whole process of tuning JVM garbage collection and memory, tuning BPEL and BPMN persistence settings, and tuning the application server. This book focuses on bringing together tips on how to identify the key bottlenecks in the whole SOA Suite infrastructure, and how to alleviate them. The Oracle SOA Suite 11g Performance Tuning Cookbook will ensure that you have the tools and techniques to get the most out of your infrastructure, delivering reliable, fast, and scalable services to your enterprise.
Table of Contents (19 chapters)
Oracle SOA Suite Performance Tuning Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Disabling explicit GC


Garbage collection is a very CPU-intensive activity; while it is occurring, no application logic can be executed. While the Java API provides a method of invoking the garbage collector from application code, it is best practice to let only the JVM decide when to perform garbage collection. If an application contains explicit calls to System.gc(), then these can significantly impact performance. Luckily, Java includes a flag that allows us to disable calling the garbage collector programmatically.

Getting ready

This recipe assumes you are using the HotSpot JVM, if you are using JRockit, see the There's more… section of this recipe for the parameter you need.

For more details, refer to the Getting ready section of Setting the new size recipe.

How to do it...

To disable explicit programmatic garbage collection, perform the following steps:

  1. Navigate to the domain's bin directory:

    cd %MIDDLEWARE_HOME%/user_projects/domains/soa_domain/bin
  2. Open the setSOADomainEnv.cmd or setSOADomainEnv...