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Web-ServiceTesting.pdf
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2009-12-07
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Performance Testing and Optimization in Web-Service Based Applications 电子版
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Performance Testing and Optimization in
Web-Service Based Applications
Mesfin Mulugeta
mesfin.mulugeta@blackboard.com
Sr. Software Performance Engineer
Goals of the Presentation
• Brief introduction to software performance
engineering and performance testing
• Web service performance metrics
• Web Service Performance testing and optimization
tools
– Load Generation & Profiling Tools
• Non Goals
– Compare the performance of web services to other
distribution technologies
Presentation Outcomes
• At the end of the session, participants will be able to
do the following:
– Get acquainted with the important steps in a software
performance engineering methodology
– Apply load generation and profiling tools in the
performance testing and optimization of web service
interfaces
Software Performance Engineering (SPE)
• A systematic, quantitative approach to constructing software
systems that meet performance objectives (PO’s).
• As part of SPE, we focus on:
– Identifying Critical Use Cases (e.g. opening a grade center)
– Assessing Performance Risk
– Establish PO’s
• PO’s are usually specified in: response time, Throughput,
Resource Utilization, workload
• Integrate performance engineering into software development
process
Performance Engineering in Blackboard
TM
SDLC
Requirement
Development
Design
Development
Testing
Deployment
(General
Availability)
Maintenance
- Assess Performance Risk
- Mitigate Performance Risk
-Identify critical se cases for Analysis
- Establish performance objectives
- Review Technical Design
Document
- Warn unacceptable anti-patterns
- Model/Prototype
-Profile the critical scenarios to identify
inefficient executions
- Code Review
- Identify scalability issues in time
- Develop Performance Data Model
- Performance Verification Testing
- Regression Testing
- Focused Testing
- Benchmarking & Certification
- Platform and Advanced
Configurations
- Sizing & Capacity Guidance
- Get Performance Problems
- Diagnose Problems
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