Mastodawn

Benoit Daloze May 3, 2025

New blog post: “Contributions to ruby/spec”
https://eregon.me/blog/2025/05/03/contributions-to-ruby-spec.html

Contributions to ruby/spec

As a maintainer of ruby/spec I sometimes wonder how much each Ruby implementation contributes to ruby/spec. Without further ado, here it is:

On the Edge of Ruby

Benoit Daloze Mar 14, 2025

New blog post: “Matching Regexps 200 Times Faster”
https://eregon.me/blog/2025/03/14/matching-regexps-200-times-faster.html

Matching Regexps 200 Times Faster

A blog about Ruby, Performance and Concurrency

On the Edge of Ruby

Benoit Daloze Oct 29, 2024

"Benchmarking Ruby parsers is trickier than one might expect, but overall the result is clear: ..." (new blog post)
https://eregon.me/blog/2024/10/27/benchmarking-ruby-parsers.html

Benchmarking Ruby Parsers

The new Prism parser has become the default in Ruby 3.4.0 preview 2.

On the Edge of Ruby

Benoit Daloze Aug 27, 2023

TruffleRuby 23.1 (to be released on Sep 19) is 4.6x and 3.5x faster than CRuby 3.2 on the new yjit-bench fluentd benchmark!

The fluentd benchmark was recently added in yjit-bench (https://github.com/Shopify/yjit-bench/pull/243) and I was eager to run it on TruffleRuby to see how it fares. Profiling revealed a small issue with Array#<< and with that fixed (https://github.com/oracle/truffleruby/pull/3234) we get this nice speedup.

Add fluentd benchmark by k0kubun · Pull Request #243 · Shopify/yjit-bench

This PR adds a new benchmark fluentd. Fluentd is a log collector that Shopify currently uses for services like Core and SFR. When Core calls Rails.logger.info("foo=bar"), our Fluentd config parses ...

GitHub

Benoit Daloze Feb 6, 2023

My @rubyconf talk “Splitting: the Crucial Optimization for Ruby Blocks” is now available online: https://youtu.be/Gn6p4rbbqEY Slides are at https://eregon.me/blog/assets/research/splitting-the-crucial-optimization-for-ruby-blocks.pdf

RM A D1 04 Benoit Daloze

YouTube

Benoit Daloze Nov 25, 2022

Getting ready for my @rubyconf talk, come learn about “Splitting: the Crucial Optimization for Ruby Blocks” at 3PM on Nov 29! https://rubyconf.org/schedule #rubyconf

Schedule | RubyConf 2022

RubyConf 2022

Benoit Daloze Nov 3, 2022

Today I tried to run #Mastodon on #TruffleRuby and it just worked as a drop-in replacement! 🚀
No Gemfile/app changes needed.
I only had to fix one small bug in rb_thread_fd_select() used by hiredis and a one-line change in the Puma config! cc @graalvm