A Peek into the Black Box - How to Adopt Java Flight Recorder to Improve Performance and Capacity Testing

Explore Java Flight Recorder and Java Mission Control in this 39-minute conference talk from Devoxx Poland 2019. Discover how these tools, now open for use in OpenJDK 11, can revolutionize Java application troubleshooting and performance testing. Learn to leverage JFR's low footprint and JMC's programmatic analysis capabilities for automated collection and processing of JVM metrics in CI/CD pipelines. Gain insights into conducting performance and capacity testing with JFR, using JMC API to identify bottlenecks in Java services, and measuring performance trends across multiple releases. Delve into an approach for building Machine Learning models based on JFR data to estimate cluster capacity. The talk covers topics such as JFR events, custom event creation, result parsing, headless and automated analysis with JMC, and implementing these tools in a testing pipeline with regression modeling.

Intro
Motivation
How would you build a good test
Did the test pass?
Java Flight Recorder
JFR Event
JFR Adding Custom Events
Parsing the results
Java Mission Control
JMC - Headless Analysis
JMC - Automated Analysis
Use Case under test
Testing Pipeline
Regression Model