Sun Java System Web Server 6.1 SP9 Performance Tuning, Sizing, and Scaling Guide


This guide discusses adjustments you can make that may improve the performance of Sun JavaTM Systems Web Server 6.1. The guide provides tuning, scaling, and sizing tips and suggestions; possible solutions to common performance problems; and data from scalability studies. It also addresses miscellaneous configuration and platform-specific issues, and describes the perfdump performance utility and tuning parameters that are built into the server.

This preface contains the following topics:

Who Should Use This Guide

This guide is intended for advanced administrators. Be sure to read this guide and other relevant server documentation before making any changes. Be very careful when tuning your server, and always back up your configuration files before making any changes.

Using the Documentation

The Sun Java System Web Server manuals are available as online files in PDF and HTML formats from the following location:

The following table lists the tasks and concepts described in the Sun Java System Web Server manuals.

Table P–1 Sun Java System Web Server Documentation Roadmap

For Information About  

See the Following  

Late-breaking information about the software and documentation 

Release Notes

Getting started with Sun Java System Web Server, including hands-on exercises that introduce server basics and features (recommended for first-time users) 

Getting Started Guide

Performing installation and migration tasks: 

  • Installing Sun Java System Web Server and its various components, supported platforms, and environments

  • Migrating from Sun Java System Web Server 4.1 or 6.0 to Sun Java System Web Server 6.1

Installation and Migration Guide

Performing the following administration tasks:

  • Using the Administration and command-line interfaces

  • Configuring server preferences

  • Using server instances

  • Monitoring and logging server activity

  • Using certificates and public key cryptography to secure the server

  • Configuring access control to secure the server

  • Using Java™ 2 Platform, Standard Edition (J2SE platform) security features

  • Deploying applications

  • Managing virtual servers

  • Defining server workload and sizing the system to meet performance needs

  • Searching the contents and attributes of server documents, and creating a text search interface

  • Configuring the server for content compression

  • Configuring the server for web publishing and content authoring using WebDAV

Administrator’s Guide

Using programming technologies and APIs to do the following: 

  • Extend and modify Sun Java System Web Server

  • Dynamically generate content in response to client requests

  • Modify the content of the server

Programmer’s Guide

Creating custom Netscape Server Application Programmer’s Interface (NSAPI) plugins 

NSAPI Programmer’s Guide

Implementing servlets and JavaServer Pages™ (JSP™) technology in Sun Java System Web Server 

Programmer’s Guide to Web Applications

Editing configuration files 

Administrator’s Configuration File Reference Guide

Tuning Sun Java System Web Server to optimize performance 

Performance Tuning, Sizing, and Scaling Guide

How This Guide Is Organized

This guide is organized as follows:

Documentation Conventions

This section describes the types of conventions used throughout this guide.

Product Support

If you have problems with your system, contact customer support using one of the following mechanisms:

Please have the following information available prior to contacting support. This helps to ensure that our support staff can best assist you in resolving problems: