Conference:March 6-8, 2017
Workshops:March 9-10, 2017
Presentation: Performance Testing in Java
Location:
- Churchill, G flr.
Duration
Day of week:
- Monday
Level:
- Intermediate
Persona:
- Developer
Key Takeaways
- Learn how to use tools to diagnose performance problems
- Understand that testing can be done by anyone
- Realise that performance testing is worthwhile
Abstract
Writing software is regarded by many developers as a craft or an art. However when it comes to performance tuning and/or testing many believe it to be more of a dark art. Nothing farther from the truth. We can gain a lot by applying a concrete methodology and similar reasoning techniques we follow when writing production code. There are tools in the Java space that can help us get better measurements and results, JMeter perhaps one of the most well known, JMH is probably the next likely candidate. We'll discuss these tools and some techniques that should make engaging in performance testing a rewarding experience.
Interview
The talk is structured like a conversation between two senior engineers, to discuss performance issues and to showcase that you don’t necessarily need to have a lot of information in your head in order to start performance testing, and get the results.
Performance isn’t just about timing and speed; but tools like JMeter allow you apply load to an application, and JMS allows testing the speed of a particular algorithm.
The talk will look at the reasons for engaging a team with performance testing at every step of the development process. In terms of tools, JMH will be showcased as a microbenchmarking option, whether it’s executed in standalone form or as part of a Gradle build.
Picking the right size of setup vs. production code to be tested when evaluating an algorithm using JMH. Selecting a good data set when running various forms of performance tests.
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