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Školení: DB-11g-TUN

Oracle Database 11g: Performance Tuning

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Podrobnosti:

Audience:

  • Database Administrators
  • Support Engineer
  • Technical Consultant

Objectives:

  • Use Database Statistics and Metrics to identify a performance problem
  • Interpret Tuning diagnostics
  • Identify and eliminate performance issues
  • Set tuning priorities and strategies
  • Identify problem SQL statements
  • Influence the optimizer

Topics:

Introduction

  • Tuning Questions
  • Who tunes
  • What to tune
  • How to tune

Monitoring With Basic Tools

  • Monitoring tools overview
  • Enterprise Manager
  • V$ views, Statistics and Metrics
  • Wait Events
  • Time Model: Overview

Using Automatic Workload Repository

  • Automatic Workload Repository: Overview
  • Automatic Workload Repository Data
  • Database Control and AWR
  • Generating AWR Reports in SQL*Plus

Identifying the Problem

  • Tuning Life Cycle Phases
  • Identify a Tuning Issue
  • Remedy one problem

Identifying Problem SQL Statements

  • Characteristics of a bad SQL statement
  • Role of the Optimizer
  • Generate explain plan
  • Access Paths Choices
  • Trace the execution

Influencing the Optimizer

  • Manage Optimizer Statistics
  • Calibrate I/O
  • Optimizer Cost
  • Changing Optimizer Behavior

SQL Plan Management

  • Automatic Maintenance Tasks
  • SQL Profiles
  • SQL Access Advisor
  • SQL Outlines
  • SQL Plan Baselines

Change Management

  • Types of changes
  • SQL Performance Analyzer
  • DB Replay
  • Server-Generated Alerts

Using Metrics and Alerts

  • Benefits of Metrics
  • Database Control Usage Model
  • User-Defined SQL Metrics

Using AWR Based Tools

  • Automatic Maintenance Tasks
  • Using ADDM
  • Using Active Session History
  • Historical Data View

Monitoring an Application (Using Services)

  • Service Overview
  • Managing Service
  • Service Aggregation and Tracing
  • Tracing Your Session

Baselines

  • Working with Metric Baselines
  • Setting Adaptive Alert Thresholds
  • Configuring Normalization Metrics

Tuning the Shared Pool

  • Shared Pool Operation
  • Mutex
  • Statspack/AWR Indicators
  • Library Cache Activity
  • Diagnostic Tools
  • UGA and Oracle Shared Server
  • Large Pool

Tuning the Buffer Cache

  • Architecture
  • Tuning Goals and Techniques
  • Symptoms
  • Solutions

Tuning PGA and Temporary Space

  • Monitoring SQL Memory Usage
  • Temporary Tablespace Management

Automatic Memory Management

  • Automatic Memory Management Architecture
  • Dynamic SGA Feature
  • Managing Automatic Memory Management

Tuning Block Space Usage

  • Space Management
  • Extent Management
  • Anatomy of a Database Block
  • Block Space Management

Tuning I/O

  • I/O Architecture
  • Striping and Mirroring
  • Using RAID
  • I/O Diagnostics
  • Using Automatic Storage Management

: Performance Tuning: Summary

  • Important Initialization Parameters with Performance Impact
  • Database High Availability: Best Practices
  • Tablespace: Best Practices
  • Statistics Gathering

Using Statspack

  • Introduction to Statspack
  • Capturing Statspack Snapshots
  • Reporting with Statspack
  • Statspack considerations
  • Statspack and AWR
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