固定されたツイート
After several months of work, we finally enabled Pitchfork reforking on 100% of Shopify's monolith.
~30% reduction in memory usage, ~9% better latency and more!
railsatscale.com/2023-10-23-pit…
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Jean Boussier
1.4K posts
Jean Boussier
@_byroot
Rails core, Ruby committer, Senior Principal Engineer at Intercom. Bsky: https://t.co/05cdHJkcO4 Mastodon: @[email protected]
Toulouse 参加日 Nisan 2022
197 フォロー中4.6K フォロワー
Happy to share that today I'm starting as senior principal at Intercom!
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@_byroot I guess now we can remove the comment and put RUBYOPT="--enable-frozen-string-literal" on app docker image build and when running tests.
This of course assumes all the dependencies are freeze-safe. Are there any downsides to this approach?
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I was recently reminded that not everyone fully understand what the frozen string literal magic comment is about.
So I figured it was the occasion for another deep dive.
byroot.github.io/ruby/performan…
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I tried to explain why I don't believe the recent accusations toward my former teammates, as well as how the Ruby and Rails Infra team at Shopify operates and why it can be trusted.
byroot.github.io/opensource/rub…
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Jean Boussier がリツイート
Honored to be back on stage at #RailsWorld in Amsterdam next week to help guide a conversation with @tenderlove, @_byroot, and @hsbt.
Still a few days before I lock in the topics. What questions would you love to hear them answer?
Ruby on Rails@rails
Members of the Rails Core and Ruby committer teams come together for a special session on the #RailsWorld stage next week. @tenderlove, @_byroot, and @hsbt will chat with host @robbyrussell about the future of DevEx in the Ruby and Rails ecosystem, and how foundational tools like RubyGems, Bundler, RDoc, Debug, and ERB can be improved to make the language and framework more welcoming. rubyonrails.org/world/2025/day…
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@seuros @maciejmensfeld #issuecomment-149828828" target="_blank" rel="nofollow noopener">github.com/rails/rails/pu…
QME
@seuros @maciejmensfeld It very much was a mistake and was never necessary. If you follow the PRs you'll see.
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🚀Sometimes the best code is no code!
@_byroot just removed a 10-year-old mistaken call to Unicode.tidy_bytes from ERB::Util and got a massive 3.89x performance boost in #Rails 📈👏👏
github.com/rails/rails/pu…
Follow me for more performance insights and Rails deep dives!
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I took some time to delve into my latest work on reducing Ractor contention. This time: Generic Instance Variables
byroot.github.io/ruby/performan…
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@mscccc I was hoping to hear your uuid hot takes, but that works too 😅
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@_byroot Jean just took his first sip of beer at the company happy hour, it’s time for him to share his opinions on rails view rendering libraries.
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I just took a sip of my first beer at the company happy hour I think it’s time to tell my coworkers about my opinion on uuids.
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Bio update: s/Senior Staff Engineer on Shopify's Ruby and Rails infrastructure team/ funemployed/
After almost 12 years, today was my last day at the company. 🫡
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@_m27e Oh I'm not going anywhere. I'm still on Rails and Ruby teams, and I'll keep contributing.
But as a hobby, that's all.
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@_byroot Crazy. Congrats, hopefully! You've had an immeasurable impact on Ruby/Rails, especially i.r.t. performance. I've always loved reading your Ruby-related posts. Still planning on sticking to Ruby, or do you want to try something new?
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@_byroot I hope that this was something you wanted; in which case, congrats and enjoy your time and I can only expect you will find your way to even bigger and better things. If this was not something you wanted, what an incredible misstep on their part.
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@m_isabegovic ❤️ thanks! I'll take some times off for now. But I'll start looking at what's out there in September.
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@_byroot Need a job? I bet I can get you an offer from my company in a week.
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Beyond performance work, I deprecated a bunch of APIs in the JSON gem, and added others, so I figured it would be a good occasion to talk about API design: byroot.github.io/ruby/json/2025…
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Jean Boussier がリツイート
I just published "Implementing Embedded TypedData Objects" about a feature @_byroot and I worked on for Ruby 3.3. A bit late, but better than never.
railsatscale.com/2025-06-03-imp…
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