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Presentation: Java at Speed: Building a Better JVM

Track: Sponsored Solutions Track III

Location: Liberty, 8fl.

Duration: 1:40pm - 2:30pm

Day of week: Wednesday

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Abstract

Getting the best performance out of your Java applications can often be a challenge due to the managed environment nature of the JVM and the non-deterministic behaviour that this introduces.

This session will start by looking at what we mean by speed and how the JVM, whilst extremely powerful, means we don’t always get the performance characteristics we want. We’ll then move on to discuss the three key features of the Zing JVM that address these issues:

  1. The Falcon JIT compiler that leverages the LLVM open source project to provide optimisations specific to the newest CPU architectures using features like AVX2.
  2. ReadyNow, which allows details of speculative optimisations and JIT profiling to be logged on production systems. ReadyNow! profiles can then be used to substantially reduce the warm up and deoptimisation issues that affect performance when restarting an application.
  3. The C4 garbage collector, which eliminates GC pauses that affect the performance of an application even after all hot code paths have been compiled and optimised.

Speaker: Simon Ritter

Deputy CTO @Azul

Qcon

Simon Ritter is the Deputy CTO of Azul Systems. Simon joined Sun Microsystems in 1996 and spent time working in both Java development and consultancy. He has been presenting Java technologies to developers since 1999 focusing on the core Java platform as well as client and embedded applications.

Now at Azul Systems he continues to help people understand Java and Azul’s JVM products. He represents Azul on the JCP Executive Committee as well as the JSR Expert Groups for JDK 9, 10, 11 and 12.

Find Simon Ritter at

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