Load Testing & Apache JMeter
- 1. Load Testing & Apache JMeter Chuck Hill Global Village Consulting, Inc. WOWODC 2010
- 2. What, Why, How? • Why? • What? • When? • Where? • How?
- 3. Planning for Load Testing • Time • Tools • Equipment • Information • Lots of data
- 7. Thread Group
- 8. Sampler
- 9. Listeners
- 10. Timers
- 11. Assertions
- 12. Test Parameterization • Parameterize for • different environments • different scenarios • different data • Start Early!
- 13. Parameters on Test Plan
- 16. Complications of WOe • URL is recorded in Sampler so... ‣ Session ID and Instance Number ➡HTTP Cookie Manager ‣ Context ID ➡A problem, but only in loops
- 17. Session ID and Instance Number
- 18. Use Matches in URL
- 19. Find Context ID
- 20. Use Context ID
- 21. Recording Tests • Record and refine • Use Selenium for repeatability • Run tests slowly
- 22. Recording Problems • ERXSwitchComponent -Der.extensions.WOSwitchComponent.patch=false • Copy and Paste to Test Plan
- 23. Delays for Reality • Pause for realistic results • Constant Timer • Gaussion Random Timer • Uniform Random Timer • Combinations of Timers
- 24. Ajax! • The good news... • The bad news... • XPath Extractor • JavaScript • AjaxUpdateContainer and friends
- 26. Upload Problem
- 27. Running the Tests • Run from GUI • Run from command line / script • Run from multiple machines
- 28. Evaluating Test Results • JMeter Reporters (Listeners) • response times: min, max, avg, std dev • error count • ActivityMonitor.app & ServerAdmin.app • memory, CPU, network • JavaMonitor • Transaction Average, Average Idle Period
- 29. Summary Report
- 30. Creating Effective Tests • Work as super-user • Use Selenium tests as base • Run against known DB backup • Parameterize tests • Use assertions
- 32. Q&A Load Testing and Apache JMeter Chuck Hill Global Village Consulting