Guild → Ractor
Guild → Ractor ささだこういち Ruby 3 さみっと 2020/04/17 背景 • Ruby の 1 プロセスでは（基本的には）並列処理できない • 同時に複数 CPU を使う処理 • Ruby（MRI）のThread == 並行処理 • マルチプロセスは難しそう… • そもそも Thread 難しい • 適切な同期漏れ • データレース • レースコンディション • デッドロック、ライブロック • 再現性がなくデバッグが困難 簡単に 並行・並列処理 したい！ 間違いを起こさないためには？ • スレッドを良い感じにサポート • 再現性をあげる（OS scheduler に手を入れるなど） • デバッグサポートを行う（Thread Sanitizer, helgrind, etc） • データの書き換えを禁止 • Erlang など • データ（オブジェクト）を共有しない
Progress report of "Ruby 3 Concurrency"
Progress report of "Ruby 3 Concurrency" Cookpad Inc. Koichi Sasada <ko1@cookpad.com> Ruby X Elixir Conf Taiwan 2018 (2018/04/28) Today’s topic • Difficulty of Thread programming • New concurrent abstraction for Ruby 3 named Guild – To overcome threading difficulties • Introduce current Guild development progress – Current “Semantics” – Current API design and sample code we can run – Preliminary pe
Introduction to Concurrency Models with Ruby. Part II
In the second part of our series we will take a look at more advanced concurrency models such as Actors, Communicating Sequential Processes, Software Transactional Memory and of course Guilds — a new concurrency model which may be implemented in Ruby 3. If you haven’t read our first post in the series, I’d definitely recommend reading it first. There I described Processes, Threads, GIL, EventMachi
Concurrency in Ruby 3 with Guilds
Note: Since this post was written four years ago, Guilds were renamed Ractors and were released as an experimental feature in Ruby 3.0. The feature now includes great documentation and copious usage examples in the Ruby API documentation. At Ruby Kaigi 2016, Koichi Sasada — designer of the current Ruby virtual machine and garbage collector — presented1 his proposal for a new concurrency model in R
Koichi Sasada: A proposal of new concurrency model for Ruby 3 (RubyKaigi2016)
A proposal of new concurrency model for Ruby 3 Koichi Sasada ko1@heroku.com People love “Concurrency” Concurrent RubyKaigi (at least, there are two parallel sessions) Why people love (to discuss) “Concurrency”? •Performance by “Parallel” execution to utilize multiple-cores •Ruby has thread system, but MRI doesn’t permit to allow parallel execution. About this presentation •Show “Why difficult mult
Koichi Sasada: Precompiling Ruby scripts - Myth and Fact (RailsConf 2016)
A proposal of new concurrency model for Ruby 3 Koichi Sasada ko1@heroku.com People love “Concurrency” Concurrent RubyKaigi (at least, there are two parallel sessions) Why people love (to discuss) “Concurrency”? •Performance by “Parallel” execution to utilize multiple-cores About this presentation •Show “Why difficult multi-threads programs” •Propose new concurrent and parallel mechanism idea name
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