Performance Tuning Overview

Introduction to Performance Tuning
This guide provides information on tuning an Oracle Database system for
performance. Topics discussed in this guide include:
■ Performance Planning
■ Instance Tuning

■ SQL Tuning

性能调试介绍

向导提供了O系统性能调试的信息。在这向导中讨论的主题包括：

#性能计划

#实例调试

#SQL调试

Performance Planning
Before starting on the instance or SQL tuning sections of this guide, make sure you
have read Part II, "Performance Planning". Based on years of designing and
performance experience, Oracle has designed a performance methodology. This brief
section explains clear and simple activities that can dramatically improve system
performance. It discusses the following topics:
■ Understanding Investment Options
■ Understanding Scalability
■ System Architecture
■ Application Design Principles
■ Workload Testing, Modeling, and Implementation

■ Deploying New Applications

性能计划

在此向导开始讲解实例

Instance Tuning
Part III, "Optimizing Instance Performance" of this guide discusses the factors
involved in the tuning and optimizing of an Oracle database instance.
When considering instance tuning, care must be taken in the initial design of the
database system to avoid bottlenecks that could lead to performance problems. In
addition, you need to consider:

■ Allocating memory to database structures

■ Determining I/O requirements of different parts of the database
■ Tuning the operating system for optimal performance of the database
After the database instance has been installed and configured, you need to monitor the
database as it is running to check for performance-related problems.