iiinova — where your digital self keeps evolving

Reposted by Joshua Young

Benoit Daloze @eregon.me · 13/12/2025

concurrent-ruby 1.3.6 is released: github.com/ruby-concurr... It automatically prunes unused threads of a thread pool even when no new work is queued, migrates away from the deprecated "non-typed data" C API and includes several bug fixes.

github.com

Release v1.3.6 · ruby-concurrency/concurrent-ruby

What's Changed Run tests without the C extension in CI by @eregon in #1081 Fix typo in Promise docs by @danieldiekmeier in #1083 Correct word in readme by @wwahammy in #1084 Fix mistakes in MVar d...

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Reposted by Joshua Young

Aaron Patterson @tenderlove.dev · 13/12/2025

One thing I'm really excited about in Ruby 4.0 is that object allocation is going to get a nice speed boost

Screenshot of a terminal demonstrating object allocation speedup. Ruby 4.0 is about 2x faster

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Joshua Young @joshuay03.bsky.social · 10/11/2025

I really shouldn't be sharing teasers given how much work's left to do, and the good chance that this becomes another forgotten experiment, but I'm pretty happy with how far I got with barely any tuning (compared to the 20-year battle-tested Puma, which I've taken some inspiration from <3). 1/5

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Joshua Young @joshuay03.bsky.social · 29/10/2025

Announcing RactorPool: github.com/joshuay03/ra... Extracted from a project I'm building with Ractors. Currently requires Ruby 3.5 (3.5.0.dev). Goal is to have it stable for Ruby 4.0, when Ractors will be less experimental 🤞🏽

github.com

GitHub - joshuay03/ractor-pool: A thread-safe, lock-free pool of Ractor workers with a coordinator pattern for distributing work

A thread-safe, lock-free pool of Ractor workers with a coordinator pattern for distributing work - joshuay03/ractor-pool

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Joshua Young @joshuay03.bsky.social · 25/10/2025

I'm building something with Ractors and found a bug. Tried my best™️ to fix it: github.com/ruby/ruby/pu... Side note: Might just be me, but as a non-frequent contributor, building ruby/ruby and running tests seems to be much more convenient and efficient than it was a couple years ago.

github.com

Fix segfault when moving nested objects between ractors during GC by joshuay03 · Pull Request #14947 · ruby/ruby

Fixes a segmentation fault when moving nested objects between ractors with GC stress enabled and YJIT. The issue appears to be a timing problem in the ractor move process. When moving objects, move...

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Joshua Young @joshuay03.bsky.social · 22/09/2025

I’ve added support for distributed deployments: github.com/joshuay03/di... Couple of ideas to follow up on: - Profile dashboard - Profile comparisons

github.com

Release v0.5.0 · joshuay03/dial

Add storage interface with Redis cluster and Memcached adapters for distributed deployments

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Joshua Young @joshuay03.bsky.social · 30/08/2025

Satisfying memory and CPU improvements after enabling Puma preloading + Process.warmup on one of Buildkite's services (our agent shard). Just rolled this out to all services - keen to see the broader impact!

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Joshua Young @joshuay03.bsky.social · 26/07/2025

I wrote (or rewrote) some gems to get better at Ruby C extensions and learn about these topics (CAS and mmap): - github.com/joshuay03/at... - github.com/joshuay03/mm...

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Joshua Young @joshuay03.bsky.social · 13/06/2025

I'm curious about this too. With YJIT in maintenance mode, bug fixes, UX improvements, etc., are probably welcome (a colleague recently found and fixed one). But with ZJIT being greenfield WIP, I'm not so sure. Completely understandable if that's the case though.

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Reposted by Joshua Young

Vipul A M @vipulnsward.com · 16/04/2025

#RubyKaigi late night with #RubyFriends !

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Joshua Young @joshuay03.bsky.social · 10/04/2025

Announcing Dial, a Rails application profiler: github.com/joshuay03/dial I've longed for a free tool that provides Datadog-like profiles, with accurate GVL and GC activity. Thanks to @jhawthorn.com's amazing work on Vernier, all I needed to do was integrate it with Rails and let it do its thing.

github.com

GitHub - joshuay03/dial: A modern profiler for your Rails application

A modern profiler for your Rails application. Contribute to joshuay03/dial development by creating an account on GitHub.

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Joshua Young @joshuay03.bsky.social · 09/03/2025

Random thought about Ruby thread scheduling fairness that I don't have sufficient knowledge of the VM to answer myself—without probably banging my head against a wall for a couple of days or weeks 🧵

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Joshua Young @joshuay03.bsky.social · 01/01/2025

#24 of 564 contributors to Rails last year—not too shabby for mostly working on OSS in my free time! Hoping to keep the momentum going in 2025 🚀 contributors.rubyonrails.org/contributors...

contributors.rubyonrails.org

Rails Contributors - Date Range

Ruby on Rails contributors

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