The Art of Application Performance Testing. From Strategy to Tools. 2nd Edition - Helion

ebook

Autor: Ian Molyneaux
ISBN: 978-14-919-0050-5
stron: 278, Format: ebook
Data wydania: 2014-12-15
Księgarnia: Helion

Cena książki: 143,65 zł (poprzednio: 167,03 zł)
Oszczędzasz: 14% (-23,38 zł)

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Tagi: Programowanie

Because performance is paramount today, this thoroughly updated guide shows you how to test mission-critical applications for scalability and performance before you deploy them—whether it’s to the cloud or a mobile device. You’ll learn the complete testing process lifecycle step-by-step, along with best practices to plan, coordinate, and conduct performance tests on your applications.

Set realistic performance testing goals
Implement an effective application performance testing strategy
Interpret performance test results
Cope with different application technologies and architectures
Understand the importance of End User Monitoring (EUM)
Use automated performance testing tools
Test traditional local applications, web applications, and web services
Recognize and resolves issues often overlooked in performance tests

Written by a consultant with over 15 years’ experience with performance testing, The Art of Application Performance Testing thoroughly explains the pitfalls of an inadequate testing strategy and offers a robust, structured approach for ensuring that your applications perform well and scale effectively when the need arises.

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Spis treści

The Art of Application Performance Testing. From Strategy to Tools. 2nd Edition eBook -- spis treści

Preface
- Audience
- About This Book
- Conventions Used in This Book
- Glossary
- Using Code Examples
- Safari Books Online
- How to Contact Us
- Acknowledgments
1. Why Performance Test?
- What Is Performance? The End-User Perspective
  - Performance Measurement
  - Performance Standards
  - The World Wide Web and Ecommerce
- Bad Performance: Why Its So Common
  - The IT Business Value Curve
  - Performance Testing Maturity: What the Analysts Think
  - Lack of Performance Considerations in Application Design
  - Performance Testing Is Left to the Last Minute
  - Scalability
  - Underestimating Your Popularity
  - Performance Testing Is Still an Informal Discipline
  - Not Using Automated Testing Tools
  - Application Technology Impact
- Summary
2. Choosing an Appropriate Performance Testing Tool
- Performance Testing Tool Architecture
- Choosing a Performance Testing Tool
- Performance Testing Toolset: Proof of Concept
  - Proof of Concept Checklist
- Summary
3. The Fundamentals of Effective Application Performance Testing
- Making Sure Your Application Is Ready
- Allocating Enough Time to Performance Test
- Obtaining a Code Freeze
- Designing a Performance Test Environment
  - Virtualization
  - Cloud Computing
  - Load Injection Capacity
  - Addressing Different Network Deployment Models
  - Environment Checklist
  - Software Installation Constraints
- Setting Realistic Performance Targets
  - Consensus
    - The business
    - IT
  - Performance Target Definition
    - Availability or uptime
    - Concurrency
    - Throughput
    - Response time
  - Network Utilization
  - Server Utilization
- Identifying and Scripting the Business-Critical Use Cases
  - Use-Case Checklist
  - Use-Case Replay Validation
  - What to Measure
  - To Log In or Not to Log In
  - Peaceful Coexistence
- Providing Test Data
  - Input Data
  - Target Data
  - Session Data
  - Data Security
- Ensuring Accurate Performance-Test Design
  - Principal Types of Performance Test
  - The Load Model
    - The simple concurrency model
    - The throughput model
  - Think Time
  - Pacing
    - Load injection profile
    - Deciding on performance test types
    - Load injection point of presence
    - Putting it all together
- Identifying the KPIs
  - Server KPIs
    - Generic templates
    - Web and application server tier
    - Database server tier
    - Mainframe tier
    - Hosting providers and KPI monitoring
  - Network KPIs
  - Application Server KPIs
- Summary
4. The Process of Performance Testing
- Activity Duration Guidelines
- Performance Testing Approach
  - Step 1: Nonfunctional Requirements Capture
  - Step 2: Performance Test Environment Build
  - Step 3: Use-Case Scripting
  - Step 4: Performance Test Scenario Build
  - Step 5: Performance Test Execution
  - Step 6: Post-Test Analysis and Reporting
- Case Study 1: Online Banking
  - Application Landscape
  - Application Users
  - Step 1: Pre-Engagement NFR Capture
  - Step 2: Test Environment Build
  - Step 3: Use-Case Scripting
  - Step 4: Performance Test Build
  - Step 5: Performance Test Execution
  - Online Banking Case Study Review
- Case Study 2: Call Center
  - Application Landscape
  - Application Users
  - Step 1: Pre-Engagement NFR Capture
  - Step 2: Test Environment Build
  - Step 3: Use-Case Scripting
  - Step 4: Performance Test Scenario Build
  - Step 5: Performance Test Execution
  - Call Center Case Study Review
- Summary
5. Interpreting Results: Effective Root-Cause Analysis
- The Analysis Process
  - Real-Time Analysis
  - Post-Test Analysis
- Types of Output from a Performance Test
  - Statistics Primer
  - Response-Time Measurement
  - Throughput and Capacity
  - Monitoring Key Performance Indicators
    - Remote monitoring
    - Installed agent
  - Server KPI Performance
  - Network KPI Performance
  - Load Injector Performance
- Root-Cause Analysis
  - Scalability and Response Time
  - Digging Deeper
  - Inside the Application Server
  - Looking for the Knee
  - Dealing with Errors
  - Baseline Data
- Analysis Checklist
  - Pre-Test Tasks
  - Tasks During Test Execution
  - Post-Test Tasks
- Summary
6. Performance Testing and the Mobile Client
- Whats Different About a Mobile Client?
- Mobile Testing Automation
- Mobile Design Considerations
- Mobile Testing Considerations
- Mobile Test Design
  - On-Device Performance Not in Scope
  - On-Device Performance Testing Is in Scope
- Summary
7. End-User Experience Monitoring and Performance
- What Is External Monitoring?
- Why Monitor Externally?
- External Monitoring Categories
- Active Monitoring
  - Output Metrics
  - ISP Testing Best Practices
  - Synthetic End-User Testing Best Practices
- Passive Monitoring
  - How Passive Monitoring Works
- Pros and Cons of Active Versus Passive Monitoring
  - Active Pros
  - Active Cons
  - Passive Pros
  - Passive Cons
- Tooling for External Monitoring of Internet Applications
  - Tool Selection Criteria
  - Active Monitoring Tooling
  - Passive Monitoring Tooling
- Creating an External Monitoring Testing Framework
  - Building Blocks of an Effective Testing Framework
  - Specific Design Aspects of Active Monitoring
  - Specific Design Aspects of Passive Monitoring
- Isolating and Characterizing Issues Using External Monitoring
- Monitoring Native Mobile Applications
- Essential Considerations for CDN Monitoring
- Performance Results Interpretation
  - Key Performance Indicators for Web-Based Ecommerce Applications
  - Setting KPI Values
- The Application Performance Index (APDEX)
- Management Information
  - Data Preparation
  - Statistical Considerations
  - Correlation
- Effective Reporting
- Competitive Understanding
  - Visitor performance map
- Alerting
  - Gotchas!
- Summary
8. Integrating External Monitoring and Performance Testing
- Tooling Choices
- Active and Passive Integration with Static Performance Testing
  - Passive and Performance Testing
  - RUM and APM
  - Integration of Active Test Traffic with APM Tooling
  - Active External Monitoring and Performance Testing
- Test Approach
  - Test Scheduling
  - Performance Testing of Multimedia Content
  - End-User Understanding in Non-Internet Application Performance Tests
- Useful Source Materials
- Summary
9. Application Technology and Its Impact on Performance Testing
- Asynchronous Java and XML (AJAX)
  - Push Versus Pull
- Citrix
  - Citrix Checklist
  - Citrix Scripting Advice
- Virtual Desktop Infrastructure
- HTTP Protocol
  - Web Services
  - .NET Remoting
  - Browser Caching
  - Secure Sockets Layer
- Java
- Oracle
  - Oracle Two-Tier
  - Oracle Forms Server
  - Oracle Checklist
- SAP
  - SAP Checklist
- Service-Oriented Architecture
- Web 2.0
  - Windows Communication Foundation and Windows Presentation Foundation
- Oddball Application Technologies: Help, My Load Testing Tool Wont Record It!
  - Before Giving Up in Despair . . .
  - Alternatives to Capture at the Middleware Level
  - Manual Scripting
- Summary
10. Conclusion
A. Use-Case Definition Example
B. Proof of Concept and Performance Test Quick Reference
- The Proof of Concept
  - POC Checklist
    - Prerequisites
    - Process
    - Deliverables
- Performance Test Execution Checklist
  - Activity Duration Guidelines
  - Step 1: Pre-Engagement NFR Capture
  - Step 2: Test Environment Build
  - Step 3: Scripting
  - Step 4: Performance Test Build
  - Step 5: Performance Test Execution
  - Step 6 (Post-Test Phase): Analyze Results, Report, Retest If Required
- Analysis Checklist
  - Pre-Test Analysis Tasks
  - Tasks During Test Execution
  - Post-Test Tasks
C. Performance and Testing Tool Vendors
- Application Performance Management
- End-User Experience and Website Monitoring
- Functional Testing
- Performance Testing
  - Open Source
- SaaS Performance Testing
- Requirements Management
  - Open Source
D. Sample Monitoring Templates: Infrastructure Key Performance Indicator Metrics
- Generic KPI Templates
  - Windows OS : Generic KPI Template
  - Linux/Unix: Generic KPI Template
- Application-Specific KPI Templates
  - Windows OS: MS SQL Server KPI Template
E. Sample Project Plan
Index