Petr Chalupa

TruffleRuby runs Optcarrot 9 times faster than MRI 2.

TruffleRuby is new optimizing implementation of Ruby. Optcarrot is a NES emulator. MRI 3 targets to run Optcarrot 3 times faster than MRI 2. We will explore the techniques which allow TruffleRuby to achieve high performance in Optcarrot.

TruffleRuby runs Optcarrot 9 times faster than MRI 2.

TruffleRuby is new optimizing implementation of Ruby. Optcarrot is a NES emulator. MRI 3 targets to run Optcarrot 3 times faster than MRI 2. We will explore the techniques which allow TruffleRuby to achieve high performance in Optcarrot. We’ll discuss splitting, inlining, array strategies, Proc elimination, etc.

Have you ever wondered how to use more than one of your cores?

The talk will take you on a path of writing a simple concurrent class. We'll start with a basic implementation and gradually improve it based on presented problems and newly learned facts. Our final solution will behave well in the face of concurrency and execute consistently on all Ruby implementations.

We’ll investigate various Ruby runtime differences that we’ve abstracted away with the synchronization layer of the concurrent-ruby gem. We'll go down to runtime internals, final fields, volatile fields and compare-and-swap operations.

In the end, after the problem domain is established, we'll discuss a forming future direction of the Ruby language in parallel environment.

The concurrent-ruby is a gem which provides a variety of concurrency abstractions at high and low levels. It is an unopinionated toolbox allowing users to pick the right tool for a given concurrent problem. The gem has Agents, Actors, STM and many more.

The talk will cover: - Overview of the available tools. - Examples of some abstractions. - Java and C specific implementations.