Blast your app with Gatling! by Stephane Landelle

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ZeroTurnaround

Technologie

Load testing made easy
Stéphane Landelle @ eBusiness Information
@slandelle

Load testing?

About performance
About server side
In “real” conditions

It’s all ‘bout the money!"
Conversion rates"
Platform costs
Performance
What for?"
(from business POV)

"
"
Results/page : 10 => 30
è +500 ms "
è -20% pages seen

è -1 % sales"
è Estimated loss: $160M/y
+100 ms

Performance"
What for?"
(from dev POV)
Fun!"
(happens to be useful too)"
Anticipate"
Reproduce"
Train

How?"
"
Simulate"

èBehaviors"
èInjector

Jmeter, The Grinder, LoadUI,
Tsung, Locust, Load Runner,
Rational, NeoLoad…

JMeter 2.8 perf test, expecting 300 tr/sec
Can you trust your results ?

JMeter reference test with Gatling,
expecting 300 tr/sec

Listen, it's not that
complicated...
Graphical User Interface

Synchronous"
"
1user=1thread"
"
Blocking I/O
- Asynchronous

- Actor model

- Non blocking I/O

From the Play2 Computer-Database sample.
(cf: https://github.com/gatling/computer-database)

Use the rich DSL …
Checks

regex / css / xpath / jsonPath
find / findAll / count
is / in / not / whatever
Structures

doIf / repeat / during / asLongAs
randomSwitch / roundRobinSwitch
Error handling

tryMax / exitBlockOnFail
Feeders

csv / tsv / jdbc

•  Maven Plugin
•  Maven archetype (run in IDE)
•  Jenkins plugin
•  Graphite live reporting

Coming soon…
•  Websockets, JDBC…
•  Clustering

http://gatling-tool.org
http://github.com/excilys/gatling
@GatlingTool

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Blast your app with Gatling! by Stephane Landelle

1. Load testing made easy Stéphane Landelle @ eBusiness Information @slandelle

2. Load Testing" Gatling" Demo

3. Load Testing" Gatling" Demo

4. Load Testing" Gatling" Demo

5. Load testing? About performance About server side In “real” conditions

6. Performance What for?"

7. It’s all ‘bout the money!" Conversion rates" Platform costs Performance What for?" (from business POV)

8. " " Results/page : 10 => 30 è +500 ms " è -20% pages seen

9. è -1 % sales" è Estimated loss: $160M/y +100 ms

10. Performance" What for?" (from dev POV) Fun!" (happens to be useful too)" Anticipate" Reproduce" Train

11. How?" " "

12. How?" " Deﬁne goals" èRequirements

13. How?" " Analyze" èData" èMonitor

14. How?" " Simulate" èBehaviors" èInjector

15. How?" " Iterate!!!"

16.

17. Jmeter, The Grinder, LoadUI, Tsung, Locust, Load Runner, Rational, NeoLoad…

18. Issue #1 High Performance

19. 1 user = " 1 thread

20. 50 threads on a JVM

21. With 2000 threads

22.

23. Blocking I/O

24. Threads ?" Waiting…

25. … and sleeping

26.

27. JMeter 2.8 perf test, expecting 300 tr/sec Can you trust your results ?

28. JMeter reference test with Gatling, expecting 300 tr/sec

29. Usability Issue #2

30. Listen, it's not that complicated... Graphical User Interface

31. Maintainability Issue #3

32. What is this change about ?

33. Gatling can change all that !

34. Synchronous" " 1user=1thread" " Blocking I/O - Asynchronous - Actor model - Non blocking I/O

35. Actors

36. NIO

37. Reach new limits

38. From the Play2 Computer-Database sample. (cf: https://github.com/gatling/computer-database)

39. Scenario " Scala code" DSL " = =

40. Use the rich DSL … Checks regex / css / xpath / jsonPath find / findAll / count is / in / not / whatever Structures doIf / repeat / during / asLongAs randomSwitch / roundRobinSwitch Error handling tryMax / exitBlockOnFail Feeders csv / tsv / jdbc

41. … or write your own " Scala code…

42. … or use the Recorder

43. •  Maven Plugin •  Maven archetype (run in IDE) •  Jenkins plugin •  Graphite live reporting

44.

45. Coming soon… •  Websockets, JDBC… •  Clustering

46. Demo

47.

48. http://gatling-tool.org http://github.com/excilys/gatling @GatlingTool

Blast your app with Gatling! by Stephane Landelle

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