Open Source Load Testing: JMeter, Gatling and Taurus

Dave KarowDeveloper Advocate

Load Testing at Scale Using Gatling and Taurus

Andrey PokhilkoOpen Source Initiative Leader

Agenda

1. Introduction to Gatling Tool

2. Gatling compared with JMeter

3. Introduction to Taurus

4. Live Demos

5. Q&A Section

Introduction to Gatling Tool

Key Features of Gatling

● Command-line tool

● Scala language for scripting

● DSL for HTTP requests

● Post-test HTML reports

Value of Gatling for Users

● Full power of programming language

● Easy to use custom code pieces and extra libraries

● Flexible load injection profiles

● Asynchronous concurrency model

Demo: Basic Usage of Gatling

● Package, imports, simulation class

● simulation ≈ scenario + injection profile + protocol

● Simulation file placement

● Simulation file naming convention

Gatling compared with JMeter

VS

Scripting Approach

● Simple GUI vs Scala for techies

● In JMeter you see one component at a time / Scala is ok

● JMeter JMX files are not VCS-friendly / Scala files are

● Code re-use and modularity in JMeter is huge pain

● Coding skills requirement is a limitation for Gatling

VS

Load Profiles

● Arrivals-based injection

● Concurrency-based injection

● RPS throttling

● All is doable in JMeter + Plugins

● In Gatling, it is not as obvious as in JMeter

VS

Community & Popularity

● JMeter is far more popular in net number of users

● Gatling users are more skilled techies on average

● More content on JMeter than on Gatling

● More tools, integrations and services support JMeter

VS

Challenges With Gatling Tool

What can be Improved for Gatling

● Easier start for beginners

● Rich real-time report

● Reports storage - collaborative and persistent

● Distributed testing

● Startup time

Introduction to Taurus

http://gettaurus.org

Overview of Taurus

● Simplified scripting

● Convenience for everyday users

● Automation-oriented

● Reporting and scaling

● Simplification for beginners - Scala, files layout, load

● Adds rich real-time reports

● Enables persistent reports storage

● Enables distributed tests

● Enables heterogenous tests (Gatling + Selenium)

Value of Taurus for Gatling Users

Live Demos

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Demo: Simplified Scripting

● HTTP requests, headers

● Assertions

● Simplified load injection settings

+

Demo: Real-Time Reporting

● Console dashboard is enabled by default

● BlazeMeter reporting, not requiring an API key

● With API key, reports are persistent and have trends

+

Demo: Cloud Scaling

● Distributed testing with 100s of machines

● Multi-geo tests enablement

● Reports and KPI trends

+

Final Summary

1. Gatling is very similar to JMeter

2. Requires more technical skills

3. Taurus mitigates its problems

4. BlazeMeter for reports and scaling

Q&A Time

Next Steps

● Create your free account at blazemeter.com

● Taurus – gettaurus.org

● Gatling – gatling.io

● Performance Testing Blog – blazemeter.com/blog

● Learning Resources – blazemeter.com/resources

Stay tuned!