Overview

This Application Performance and Tuning course is designed to teach the students how to prevent application performance problems and to improve the performance of existing applications. Students will learn about indexes, table design, locking, and other issues relevant to application performance. This course includes paper exercises and machine exercises designed to reinforce the lecture content.

Skills Covered

  • Design better indexes
  • Determine how to live with the optimizer (avoid pitfalls, help when necessary)
  • Avoid locking problems
  • Use accounting trace information to find significant performance problems in an operational application

Prerequisites

You should have:

  • Familiarity with DB2 for z/OS application programming and SQL.

Target Audience

This intermediate course is designed for DB2 for z/OS application developers, DB2 for z/OS DBAs, and anyone else who is responsible for application performance and tuning in a DB2 for z/OS environment.

Course Curriculum

Module 1: Introduction to Application Performance and Tuning
Module 2: List Common Causes of Application Performance Problems
Module 3: Evalutate Different Approaches for Detecting the Problems
Module 4: Describe Possible Solutions
Module 5: Performance Analysis Tools
Module 6: Understand Components of Local Response Time (LRT)
Module 7: Identify Touch Random (TR), Touch Sequential (TS), and Fetch (F) Time Costs
Module 8: Utilize VQUBE3 to Estimate Local Response Time (LRT)
Module 9: Locate Necessary Time Values in an Accounting Trace Report
Module 10: Draw and Interpret a Bubble Chart
Module 11: Towards Better Indexes
Module 12: Understand DB2 Index Structure and Usage
Module 13: Evalute the Cost of Creating a New Index or Modifying an Existing Index
Module 14: Design the Best Possible Index for a Single Table Query
Module 15: Describe Prefetch Operations and Multi-Index Access
Module 16: Multiple Table Access
Module 17: Identify Various Join Methods and Join Types
Module 18: Predict Table Join Order
Module 19: Design the Best Indexes for Joining Tables
Module 20: Optimmize Correlated and Non-Correlated Subqueries
Module 21: Utilize UNION, INTERSECT, and EXCEPT Operations
Module 22: Towards Better Tables
Module 23: Evaluate Clustering Alternatives
Module 24: Understand Basic Rules of Nomalization
Module 25: Consider Conditions for Denormalization
Module 26: Define Materialized Query Tables
Module 27: Learning to Live with the Optimizer
Module 28: Describe the Limitations Related to Dangerous Predicates
Module 29: Identify Situations when the Optimizer Needs Help with Filter Factor Estimates
Module 30: Massive Batch
Module 31: Detect Performance Problems with Massive Batch Jobs Make Batch Jobs Run Faster
Module 32: Locking Issues
Module 33: Describe DB2 Serialization
Module 34: Understand Transaction Locking
Module 35: Avoid Locking Problems in Application Design
Module 36: Course Summary
Module 37: Summarize the Topics Covered in this Course

Dates & Locations

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Exam & Certification

This course is not associated with any Certification.

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