OPENSTA%20and%20ColdFusion

1
OPENSTA and ColdFusion

• Using Open STA for load and functional testing
  ColdFusion based applications

2
What is Open STA

• Open Source Testing Tool
• Used to be a product called Cyrano
• Written in C, currently windows only
• It is actually two tools the Open Sta commander
  and the Open STA gateway.

3
Why Use a Testing Tool

• Automate tedious jobs
• Increase code quality
• Decrease time debugging
• Increase predictability
• Create real benchmarks and metrics for planning

4
Open STA VS. MS WAST

• Open STA is open source
• Has richer functionality
• Less issues with SSL
• Great support and development community

5
How Open STA works

• Commander and Gateway
• Scripts, Collectors, and Tests

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Creating a Script

• Create a new script name
• Setup your browser
• Record a session

7
Some Comments on Creating Scripts

• Try to break down your scripts to use cases for
  functional testing. Remember you can combine
  many small tests into on big test.
• Get with real stakeholders for modeling realistic
  tests.

8
Create a Collector

• Collectors are just Win NT perfmon counters.
• You need to have CF counter on in the admin
• Model your counters in Perfmon
• Then build a collector, collector can have any
  number of counters

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Create a Test

• Create a new test
• Add your scripts
• Add your counters
• Adjust virtual users, monitors, ramp up time etc.
• Tests can be changed in real time!

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Analytics

• Open STA Analytics are virtually nonexistent
• You need to use some other tool but most of the
  time Excel should be sufficient.

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Tuning ColdFusion

• JVM
• JRUN.XML
• Testing and tuning for performance

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Basic JVM Settings

• Basic Settings for Performance
• Heap VS. Perm
• Monitoring the JVM
• Tuning the JVM
• Getting to know the JVM

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JVM Resources

• More JVM and Java performance references
• The JVM FAQ http//java.sun.com/docs/hotspot/Perf
  ormanceFAQ.html
• Sun Java 1.4 Performance and Scalability Guide
  http//java.sun.com/j2se/1.4/performance.guide.htm
  l.
• Sun JVM Specification http//java.sun.com/docs/boo
  ks/vmspec/2nd-edition/html/VMSpecTOC.doc.html.
• Resource on Tuning CF http//www.bpurcell.org/blo
  g/index.cfm?modeentryentry967
• JVM STAT http//developers.sun.com/dev/coolstuff/
  jvmstat/
• IBM Article on Tuning a BlueDragon CFML Site
  http//www-106.ibm.com/developerworks/java/library
  /j-perf06304/?cadgr-lnxw07BlogFix

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JRUN.XML

• Services (Scheduler VS. Proxy)
• Active Threads
• Min and Max threads
• Timeout

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Summary

• Testing increases usability
• Increases predictability
• Lowers development cost
• Makes people happy