Gatling for JMeter dummies - Entwicklertag · 1 Gatling for JMeter dummies Rainer Steinegger...

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Gatling for JMeter dummies

Rainer Steinegger

Application Engineer, Unic GmbH

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Rainer Steinegger

• Java Backend Engineer

• Java User Group KA Organizer

• Mentor at Devoxx4Kids

• Married and 3 kids

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featuring some friends

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• JMeter • Gatling to the rescue!!111 • Gatling Basics and Code

Agenda

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Why load-/stresstests?!

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JMeter

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Performance

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one user per thread

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might take many threads

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… and doesn’t scale well

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Blocking I/O

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Thread.sleep()

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Usability

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peer reviews

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XML!!!

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refactorings…

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plugin dependencies and versions

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Gatling to the rescue!!111

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Performance

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akka and actuators

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Thread.sleep()

netty for non-blocking I/O

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versioning and peer reviews

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Scala for DSL

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use the tools you are used to!

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Gatling Basics

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Simulations:

• Standard load

• Peak exceeded

• …

Simulations and Scenarios

Scenarios:

• Registration

• Login

• Search

• ...

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finally some code

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• Gatling Recorder

• Maven Gatling Plugin and Reports

• User and sessions

• Feeder and data sources (in-memory, CSV, JSON, JDBC, …)

• Configuration

• Assertions (requests per second, successful requests, …)

• HTTP/… Checks

• Protocols (HTTP, Server Sent Events, WebSockets, JMS)

Recap

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that’s all folks!

https://github.com/rainer-steinegger - rainer.steinegger@unic.com