Scala ♥ Graal

The #TwitterVMTeam is investing in optimizing the JVM to improve the performance of Scala applications. We’ve migrated to Graal as the JIT compiler and observed a significant performance improvement. The migration also opened the path to implementing optimizations since its codebase is in Java and more manageable.

This talk will present a few performance challenges of our Scala applications and how the #TwitterVMTeam has been working to address them. It’ll cover optimizations for more efficient Future execution and new approaches to deal with the overhead of invokeinterface calls.

Session length

40 minutes

Language of the presentation

English

Target audience

Intermediate: Requires a basic knowledge of the area

Who is your session intended to

People interested in performance and JIT compilers

Speaker

Flavio Brasil (Twitter, Staff Software Engineer)

• LavaOne - Honolulu, 01/2018 “Building a high-performance Future for the JVM” https://youtu.be/grz4uIi0McI
• Scale by the bay - San Francisco, 11/2017 “Spark Datasets: why they aren't great and what could be done” https://youtu.be/gIq1zRUE4as
• ScalaDays - Berlin, 06/2016 “Scylla, Charybdis, and the mystery of Quill” https://youtu.be/nqSYccoSeio

Contributes

• Quill
• Monadless
• Trane.io Future and Arrow and others