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Benoit Daloze

@eregon.me

505 followers 178 following 340 posts

Expert in dynamic language runtimes and JIT compilation, TruffleRuby lead, Rubyist. eregon.me

Benoit Daloze @eregon.me · 17/09/2026

Here are the slides for my talk "Running Native Extensions and Ruby Code in Parallel Threads" at #EuRuKo 2026: eregon.me/blog/assets/...

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Benoit Daloze @eregon.me · 17/09/2026

TruffleRuby runs Doom at, 🥁, 662 FPS! From the talk of @khasinski.bsky.social at #EuRuKo

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Benoit Daloze @eregon.me · 17/09/2026

So Matz is saying you can make Campfire (a Rails app) 5 times faster and use a twelvth of the memory by using github.com/rubys/roundh... + github.com/matz/spinel

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Benoit Daloze @eregon.me · 17/09/2026

So part of the reason for Spinel (AOT compiler from Ruby to C) is lower memory usage, because RAM got expensive, and of course performance #EuRuKo

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Benoit Daloze @eregon.me · 23/04/2026

My talk tomorrow is at 14:50 in the #RubyKaigi Large Hall and it now includes 2 demos running at speeds you have never seen before!

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Benoit Daloze @eregon.me · 23/04/2026

TruffleRuby is running Doom at 150 FPS! In @khasinski.bsky.social #RubyKaigi talk "From C to Ruby: Porting Doom"

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Benoit Daloze @eregon.me · 20/04/2026

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Benoit Daloze @eregon.me · 20/04/2026

ZRH 🛫 MUC ✈️ HND 🛬 HKD, #RubyKaigi I am on the way. I'm wearing a T-shirt of RubyKaigi 2016, time flies!

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Benoit Daloze @eregon.me · 30/03/2026

I'm starting at Datadog today!

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Benoit Daloze @eregon.me · 26/03/2026

Just received a Most Notable Paper Award for our paper “Cross-language compiler benchmarking: are we fast yet?” published at the Dynamic Languages Symposium 2016. Congratulations to my co-authors @stefan-marr.de and Hanspeter Mössenböck!

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Benoit Daloze @eregon.me · 03/05/2025

New blog post: “Contributions to ruby/spec” eregon.me/blog/2025/05...

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Benoit Daloze @eregon.me · 14/03/2025

New blog post: “Matching Regexps 200 Times Faster” eregon.me/blog/2025/03...

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Benoit Daloze @eregon.me · 13/02/2025

Did you run with YJIT? YJIT doesn't compile singleton methods of non-Module/Class objects. I was also surprised by the extra method call costing something like 10-20ns extra without YJIT (10 from the blog post, 20 from my local run on 3.4.1). Meanwhile on TruffleRuby all 3 optimize away:

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Benoit Daloze @eregon.me · 11/12/2024

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