k0kubun (@k0kubun) 's Twitter Profile
k0kubun

@k0kubun

Optimizing Ruby's JIT compiler at @Shopify. speakerdeck.com/k0kubun k0kubun.medium.com k0kubun.hatenablog.com

ID: 1677135319

linkhttps://github.com/k0kubun calendar_today17-08-2013 02:12:52

20,20K Tweet

5,5K Followers

1,1K Following

stmn, inc. Developers (@stmn_eng) 's Twitter Profile Photo

\💎#rubykaigi 2025 Day1 / スタメンブース、準備完了しました!ステッカーを無料で配布します!! 弊社プロダクトのTUNAG(ツナグ)の抽選機能を体験できます! 当たるとAnkerの充電器をゲットできます(参加賞もあります。) お気軽にお越しください! #TUNAG #RubyKaigi2025

\💎#rubykaigi 2025 Day1 / スタメンブース、準備完了しました!ステッカーを無料で配布します!!  弊社プロダクトのTUNAG(ツナグ)の抽選機能を体験できます! 当たるとAnkerの充電器をゲットできます(参加賞もあります。)  お気軽にお越しください!  #TUNAG #RubyKaigi2025
k0kubun (@k0kubun) 's Twitter Profile Photo

RubyKaigi2025大抽選会🎉 豪華景品が当たるチャンス! Ruby開発のブース (B-034)へLet's Go! #rubykaigi #rubykaigi2025 #Ruby開発 x.com/ruby_dev_inc/s…

k0kubun (@k0kubun) 's Twitter Profile Photo

あなたのRuby力は?FindyのRubyクイズで4/5正解し、「Rubyの達人」の称号をGETしました findy-code.io/ruby-quiz?scor… #rubykaigi2025 #rubykaigi_findy

Shopify Engineering (@shopifyeng) 's Twitter Profile Photo

At #RubyKaigi, the Ruby & Rails Infrastructure team shares their efforts to make Ruby faster: - Aaron Patterson Aaron Patterson speeds up Class#new by rewriting it in Ruby - Takashi Kokubun k0kubun explains why YJIT is 2x faster on railsbench - Alexander Momchilov showcases a more

成瀬 (@nalsh) 's Twitter Profile Photo

Ruby 3.5.0 preview1 Released ruby-lang.org/en/news/2025/0… We are pleased to announce the release of Ruby 3.5.0-preview1. Ruby 3.4 updates its Unicode version to 15.1.0, and so on.

k0kubun (@k0kubun) 's Twitter Profile Photo

Ruby 3.4.4 Released ruby-lang.org/en/news/2025/0… This release includes a fix for a YJIT bug related to local variables and addresses a build issue on Windows when using GCC 15. It was released ahead of schedule to make these fixes available as soon as possible.

max.rss (@tekknolagi) 's Twitter Profile Photo

I am now a Ruby committer! Thank you to k0kubun for proposing, Yukihiro Matz for accepting, and the Ruby community for being so welcoming. I'm looking forward to working more with all of you!

Gergely Orosz (@gergelyorosz) 's Twitter Profile Photo

What happens when a company goes all in on AI? At Shopify, engineers are expected to utilize AI tools, and they’ve been doing so for longer than most. In this live episode from LDX3 in London. — recorded two weeks ago — I spoke with Farhan Thawar, Head of Engineering, about how

k0kubun (@k0kubun) 's Twitter Profile Photo

My espresso machine got clogged. I disassembled it, desclaled the flow restrictor, and reassembled it. Then it started leaking. It took me days to figure it out, but I finally fixed it ☕️

My espresso machine got clogged. I disassembled it, desclaled the flow restrictor, and reassembled it. Then it started leaking. It took me days to figure it out, but I finally fixed it ☕️
k0kubun (@k0kubun) 's Twitter Profile Photo

Ruby 3.4.5 Released ruby-lang.org/en/news/2025/0… This is a routine update that includes bug fixes and GCC 15 support. We recommend upgrading your Ruby version at your earliest convenience.

k0kubun (@k0kubun) 's Twitter Profile Photo

This interactive blog post on GC write barriers by Alan Wu is amazing. We've just debugged one of these bugs. It's still relevant. alanwu.space/post/write-bar…

Irina Nazarova (@inazarova) 's Twitter Profile Photo

⚡️ We launched General ticket sale for the San Francisco Ruby Conference on November 19-20! Get yours at lu.ma/sfrubyconf2025 The full program is live on sfruby.com/speakers and it is 🔥exceptional🔥. Friends, help us share the message!

⚡️ We launched General ticket sale for the San Francisco Ruby Conference on November 19-20! Get yours at lu.ma/sfrubyconf2025
The full program is live on sfruby.com/speakers and it is 🔥exceptional🔥. Friends, help us share the message!