Oracle Database: Performance Management and Tuning

• Use the Oracle Database tuning methodology appropriate to the available tools
• Utilize database advisors to proactively tune an Oracle Database Instance
• Use the tools based on the Automatic Workload Repository to tune the database
• Diagnose and tune common SQL related performance problems
• Diagnose and tune common Instance related performance problems
• Use Enterprise Manager performance-related pages to monitor an Oracle Database

• znalosti na úrovni kurzu Oracle Database: Administration Workshop [ORADM1]

Introduction

• This lesson introduces the Performance Tuning course objectives and agenda

Basic Tuning Tools

• Monitoring tools overview
• Enterprise Manager
• V$ Views, Statistics and Metrics
• Wait Events

Using Automatic Workload Repository

• Managing the Automatic Workload RepositoryCreate AWR Snapshots
• Real Time SQL Monitoring (a 11.1 feature new lesson in NF L-15)

Defining Problems

• Defining the Problem
• Limit the Scope & Setting the Priority
• Top SQL Reports
• Common Tuning Problems & Tuning During the Life Cycle
• ADDM Tuning Session
• Performance Versus Business Requirements
• Performance Tuning Resources & Filing a Performance Service Request
• Monitoring and Tuning Tools: Overview

Using Metrics and Alerts

• Metrics, Alerts, and Baselines
• Limitation of Base Statistics & Typical Delta Tools
• Oracle Database 11g Solution: Metrics
• Benefits of Metrics
• Viewing Metric History Information & Vsing EM to View Metric Details
• Statistic Histograms & Histogram Views
• Database Control Usage Model & Setting Thresholds
• Server-Generated Alerts, Creating and Testing an Alert & Metric and Alert Views

Using Baselines

• Comparative Performance Analysis with AWR Baselines
• Automatic Workload Repository Baselines
• Moving Window Baseline
• Baselines in Performance Page Settings & Baseline Templates
• AWR Baselines & Creating AWR Baselines
• Managing Baselines with PL/SQL & Baseline Views
• Performance Monitoring and Baselines & Defining Alert Thresholds Using a Static Baseline
• Using EM to Quickly Configure & Changing Adaptive Threshold Settings

Using AWR Based Tools

• Automatic Maintenance Tasks
• ADDM Performance Monitoring
• Active Session History: Overview

Monitoring an Application

• What Is a Service? Service Attributes & Service Types
• Creating Services & Managing Services in a Single-Instance Environment
• Everything Switches to Services.
• Using Services with Client Applications & Using Services with the Resource Manager
• Services and Resource Manager with EM & Using Services with the Scheduler
• Using Services with Parallel Operations & Metric Thresholds
• Service Aggregation and Tracing & Service Aggregation Configuration.
• Client Identifier Aggregation and Tracing & Service Performance Views

Identifying Problem SQL Statements

• SQL Statement Processing Phases & Role of the Oracle Optimizer
• Identifying Bad SQL, Real Time SQL Monitoring (a 11.1 feature new lesson in NF L-15) & TOP SQL Reports
• What Is an Execution Plan? Methods for Viewing Execution Plans & Uses of Execution Plans
• DBMS_XPLAN Package: Overview & EXPLAIN PLAN Command
• Reading an Execution Plan, Using the V$SQL_PLAN View & Querying the AWR
• SQL*Plus AUTOTRACE & SQL Trace Facility
• How to Use the SQL Trace Facility
• Generate an Optimizer Trace

Influencing the Optimizer

• Functions of the Query Optimizer, Selectivity, Cardinality and Cost & Changing Optimizer Behavior
• Using Hints, Optimizer Statistics & Extended Statistics
• Controlling the Behavior of the Optimizer with Parameters
• Enabling Query Optimizer Features & Influencing the Optimizer Approach
• Optimizing SQL Statements, Access Paths & Choosing an Access Path
• Join & Sort Operations
• How the Query Optimizer Chooses Execution Plans for Joins
• Reducing the Cost

Using SQL Performance Analyzer

• Real Application Testing: Overview & Use Cases
• SQL Performance Analyzer: Process & Capturing the SQL Workload
• Creating a SQL Performance Analyzer Task & SPA (NF Lesson 9) DBMS_SQLTUNE.CREATE_TUNING_TASK
• Optimizer Upgrade Simulation & SQL Performance Analyzer Task Page
• Comparison Report & Comparison Report SQL Detail
• Tuning Regressing Statements & Preventing Regressions
• Parameter Change Analysis & Guided Workflow Analysis
• SQL Performance Analyzer: PL/SQL Example & Data Dictionary Views

SQL Performance Management

• Maintaining SQL Performance and Optimizer Statistics & Automated Maintenance Tasks
• Statistic Gathering Options & Setting Statistic Preferences
• Restore Statistics
• Deferred Statistics Publishing: Overview & Example
• Automatic SQL Tuning: Overview
• SQL Tuning Advisor: Overview
• Using the SQL Access Advisor
• SQL Plan Management: Overview

Using Database Replay

• The Big Picture & System Architecture
• Capture & Replay Considerations
• Replay Options & Analysis
• Database Replay Workflow in Enterprise Manager
• Packages and Procedures
• Data Dictionary Views: Database Replay
• Database Replay: PL/SQL Example
• Calibrating Replay Clients

Tuning the Shared Pool

• Shared Pool Architecture & Operation
• The Library Cache & Latch and Mutex
• Diagnostic Tools for Tuning the Shared Pool
• Avoiding Hard & Soft Parses
• Sizing the Shared Pool & Avoiding Fragmentation
• Data Dictionary Cache & SQL Query Result Cache
• UGA and Oracle Shared Server
• Large Pool & Tuning the Large Pool

Tuning the Buffer Cache

• Oracle Database Architecture: Buffer Cache
• Database Buffers
• Buffer Hash Table for Lookups
• Working Sets
• Buffer Cache Tuning Goals and Techniques
• Buffer Cache Performance Symptoms & Solutions
• Automatically Tuned Multiblock Reads
• Flushing the Buffer Cache (for Testing Only)

Tuning PGA and Temporary Space

• SQL Memory Usage & Performance Impact
• SQL Memory Manager
• Configuring Automatic PGA Memory & Setting PGA_AGGREGATE_TARGET Initially
• Monitoring & Tuning SQL Memory Usage
• PGA Target Advice Statistics & Histograms
• Automatic PGA and Enterprise Manager & Automatic PGA and AWR Reports
• Temporary Tablespace Management: Overview & Monit

Predošlé kurzy

Oracle Database: Administration Workshop [ORADM1]