Pythonが速度改善に本気出すと聞いたので恒例のたらい回しベンチをとってみたら、RubyがYJITですごく速くなっていて驚いた話 - Smalltalkのtは小文字です
2022-09-09改訂： gcc バージョンが古すぎたのと、C が内部計測でなかった点を改め計測しなおしました。結果、Rust は C より速くはなくなりました。紛らわしいことで、ごめんなさい。また、gcc のバージョンアップに伴い、Python および Ruby についてはビルドと計測をしなおしたので、これらも少し速い値に変わっています。この点もどうぞあしからず。 2022-09-10追記：ご要望のあった Python numba.njit 使用時と Go の結果を追加しました。PHP は JIT 有効化が面倒だったので断念しました^^; 2022-09-10追記2：C の計測で clock() を使うのはフェアではないという指摘がありましたので、念のため clock_gettime() を使用したコードに差し替えました。結果に大きな差はありません。 2022-09-10追記3：PHP
技術部の笹田（ko1）と遠藤（mame）です。クックパッドで Ruby (MRI: Matz Ruby Implementation、いわゆる ruby コマンド) の開発をしています。お金をもらって Ruby を開発しているのでプロの Ruby コミッタです。 本日 12/25 に、ついに Ruby 3.1.0 がリリースされました（Ruby 3.1.0 リリース ）。今年も Ruby 3.1 の NEWS.md ファイルの解説をします。NEWS ファイルとは何か、は以前の記事を見てください。 プロと読み解く Ruby 2.6 NEWS ファイル - クックパッド開発者ブログ プロと読み解くRuby 2.7 NEWS - クックパッド開発者ブログ プロと読み解くRuby 3.0 NEWS - クックパッド開発者ブログ 本記事は新機能を解説することもさることながら、変更が入った背景や苦労な
プロと読み解くRuby 3.4 NEWS テクノロジー部門技術基盤グループの笹田（ko1）と遠藤（mame）です。Ruby (MRI: Matz Ruby Implementation、いわゆる ruby コマンド) の開発をしています。お金をもらって Ruby を開発しているのでプロの Ruby コミッタです。 本日 12/25 に、恒例のクリスマスリリースとして、Ruby 3.4.0 がリリースされました（Ruby 3.4.0 リリース ）。今年も STORES Product Blog にて Ruby 3.4 の NEWS.md ファイルの解説をします（ちなみに、STORES Advent Calendar 2024 の記事になります。他も読んでね）。NEWS ファイルとは何か、は以前の記事を見てください。 プロと読み解く Ruby 2.6 NEWS ファイル - クックパッド開発者
Developers are increasingly relying on AI coding assistants to accelerate our daily workflows. These tools can autocomplete functions, suggest bug fixes, and even generate entire modules or MVPs. Yet, as many of us have learned, the quality of the AI’s output depends largely on the quality of the prompt you provide. In other words, prompt engineering has become an essential skill. A poorly phrased
A few months ago, I set myself the challenge of writing a C compiler in 500 lines of Python1, after writing my SDF donut post. How hard could it be? The answer was, pretty hard, even when dropping quite a few features. But it was also pretty interesting, and the result is surprisingly functional and not too hard to understand! There's too much code for me to comprehensively cover in a single blog
copilot-explorer
Copilot Internals | thakkarparth007.github.io Github Copilot has been incredibly useful to me. It can often magically read my mind and make useful suggestions. The thing that surprised me the most was its ability to correctly “guess” functions/variables from surrounding code – including from other files. This can only happen, if the copilot extension sends valuable information from surrounding cod
LogLog Games
The article is also available in Chinese. Disclaimer: This post is a very long collection of thoughts and problems I've had over the years, and also addresses some of the arguments I've been repeatedly told. This post expresses my opinion the has been formed over using Rust for gamedev for many thousands of hours over many years, and multiple finished games. This isn't meant to brag or indicate su
Beyond agentic coding
I'm generally pretty pro-AI with one major exception: agentic coding. My consistent impression is that agentic coding does not actually improve productivity and deteriorates the user's comfort and familiarity with the codebase. I formed that impression from: my own personal experiences Every time I use agentic coding tools I'm consistently unimpressed with the quality of the results. my experience
概要 原著者の許諾を得て翻訳・公開いたします。 英語記事: So You Want To Remove The GVL? | byroot’s blog 原文公開日: 2025/01/29 原著者: byroot -- Railsコアコミッター、Rubyコミッターであり、ShopifyのRuby/Railsインフラチームのシニアスタッフエンジニアです 日本語タイトルは内容に即したものにしました。 GVLは「グローバルVMロック」の略ですが、「ジャイアントVMロック」とされることもあります。 参考: Rubyの（グローバル）VMロックをトレースする（翻訳） 参考: スレッド (Ruby 3.4 リファレンスマニュアル) 私がやりたいのは、Pitchforkに関する記事を書いて、これがどんな理由でできたのか、なぜ現在のような形になったのか、そして今後どうなるのかについて説明することです。しかし
Rewriting the Ruby parser
At Shopify, we have spent the last year writing a new Ruby parser, which we’ve called YARP (Yet Another Ruby Parser). As of the date of this post, YARP can parse a semantically equivalent syntax tree to Ruby 3.3 on every Ruby file in Shopify’s main codebase, GitHub’s main codebase, CRuby, and the 100 most popular gems downloaded from rubygems.org. We recently got approval to merge this work into C
Programming is an iterative process. As much as we would like to come up with the perfect solution from the start, it rarely works that way. Good programs often begin as quick prototypes. While many experiments remain prototypes, the best programs can evolve into production code. Whether you’re writing games, CLI tools, or designing library APIs, prototyping helps tremendously in finding the best
TL;DR; We are changing std::sort in LLVM’s libcxx. That’s a long story of what it took us to get there and all possible consequences, bugs you might encounter with examples from open source. We provide some benchmarks, perspective, why we did this in the first place and what it cost us with exciting ideas from Hyrum’s Law to reinforcement learning. All changes went into open source and thus I can
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction - cl-fast-ecs by Andrew
Gamedev in Lisp. Part 1: ECS and Metalinguistic Abstraction In this series of tutorials, we will delve into creating simple 2D games in Common Lisp. The result of the first part will be a development environment setup and a basic simulation displaying a 2D scene with a large number of physical objects. It is assumed that the reader is familiar with some high-level programming language, has a gener
Update 1.99.1: The update addresses these security issues. Update 1.99.2: The update addresses these issues. Update 1.99.3: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the March 2025 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highligh
I Made Zig Compute 33 Million Satellite Positions in 3 Seconds. No GPU Required.
Update: I've since added multithreading and pushed astroz to 326M propagations/sec. Read the follow-up → I've spent the past month optimizing SGP4 propagation and ended up with something interesting: astroz is now the fastest general purpose SGP4 implementation I'm aware of, hitting 11-13M propagations per second in native Zig and ~7M/s through Python with just pip install astroz. This post breaks
Show navigation A recent article on WebAssembly Garbage Collection (WasmGC) explains at a high level how the Garbage Collection (GC) proposal aims to better support GC languages in Wasm, which is very important given their popularity. In this article, we will get into the technical details of how GC languages such as Java, Kotlin, Dart, Python, and C# can be ported to Wasm. There are in fact two m
Over the course of my Spring 2020 semester at Harvey Mudd College, I developed a self-hosting compiler entirely from scratch. This article walks through many interesting parts of the project. It’s laid out so you can just read from beginning to end, but if you’re more interested in a particular topic, feel free to jump there. Or, take a look at the project on GitHub. Table of contents What the pro
A Walk with LuaJIT
The following is a chronicle of implementing a general purpose zero-instrumentation BPF based profiler for LuaJIT. Some assumptions are made about what this entails and it may be helpful to read some of our other work in this area. One major change from prior efforts is that instead of working with the original Parca unwinder we are now working with the OpenTelemetry eBPF profiler. If you missed t
htmy - htmy
Source code: https://github.com/volfpeter/htmy Documentation and examples: https://volfpeter.github.io/htmy htmy Async, pure-Python server-side rendering engine. Unleash your creativity with the full power and Python, without the hassle of learning a new templating language or dealing with its limitations! Key features Async-first, to let you make the best use of modern async tools. Powerful, Reac
Using libsodium in a web browser has been possible since 2013, thanks to the excellent Emscripten project. Since then, WebAssembly was introduced. A more efficient way to run code not originally written in JavaScript in a web browser. And libsodium added first-class support for WebAssembly in 2017. On web browsers supporting it, and in allowed contexts allowing it, that gave a nice speed boost. Li
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Version 1.108 is now available! Read about the new features and fixes from December. Release date: May 8, 2025 Update: Enable Next Edit Suggestions (NES) by default in VS Code Stable (more...). Update 1.100.1: The update addresses these security issues. Update 1.100.2: The update addresses these issues. Update 1.100.3: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Univers
If you haven’t been living under a rock, you will have noticed this week that a project of my friend Peter went viral on the internet. It went by many names. The most recent one is OpenClaw but in the news you might have encountered it as ClawdBot or MoltBot depending on when you read about it. It is an agent connected to a communication channel of your choice that just runs code. What you might b
Rustacean のための F# 入門
また、 F# の decimal 型は Rust には標準で存在しませんが、 5m という書き方をします。 数字の間に _ を入れて読みやすくすることができるのも同様です。 let num = 8_000_000; その他の型について ... F# の char は Rust の char に似ていますが、 前者が UTF-16 なのに対し、 Rust の char は UTF-32 で常に 4bytes です。これは、 Rust とは違い、 char の配列がほぼそのまま string として扱えることを示しています。 Rust の unit と F# の unit は両方とも () で表され、役割も同じです。 文字列型に関しては Rust には色々あるので、簡単な比較はできませんが、 string は immutable な char の配列で、 mutable に扱いたい場合は St
Skills in OpenAI API
Upload, manage, and attach reusable skills to hosted environments. Agent Skills let you upload and reuse versioned bundles of files in hosted and local shell environments. For the full reference, see the Skills documentation. What is a skill? A skill is a reusable bundle of files (instructions + scripts + assets), packaged as a folder and anchored by a required SKILL.md manifest. OpenAI copies tha
Tier 4 Support § Support for these targets is entirely experimental. If this target is provided by LLVM, LLVM may have the target as an experimental target, which means that you need to use Zig-provided binaries for the target to be available, or build LLVM from source with special configure flags. zig targets will display the target if it is available. This target may be considered deprecated by
Fun with uv and PEP 723
Fun with uv and PEP 723 June 24, 2025 For the longest time, I have been frustrated with Python because I couldn’t use it for one-off scripts. I had to first ensure it was running in an environment where it could find the right Python version and the dependencies installed. That is now a thing of the past. uv¶ If you are not a Pythonista (or one possibly living under a rock), uv is an extremely fas
I did this in 2020 and then again in 2021, but I’m in the mood to look around again. Let’s look through Are We GUI Yet? and see what’s up these days. The task today is to have a text label and an input field that can change the text in the label. In React, for example, this is basically free: const Demo = () => { let [state, setState] = useState("Hello, world!"); return ( <div> <p>{state}</p> <inp
こんにちは、R&Dチームの齋藤（@aznhe21）です。 今日はオプティムの創立記念パーティーがオンラインで行われます。 オプティムは2000/6/8に設立され、去年は20周年の節目であったにも関わらず生憎の時制で大きく祝えませんでしたが、 今年は準備も万全、盛大にお祝いしたいと思います。 さて、本日、日本時間6/18(金)、Rust 1.53がリリースされました。 この記事ではRust 1.53での変更点を詳しく紹介します。 6/18は京大の前身・京都帝国大学創立の日 ピックアップ 識別子にASCII以外の文字も使えるようになった ORパターンが使えるようになった 配列にIntoIteratorが実装された 安定化されたAPIのドキュメント AtomicBool::fetch_update サンプル AtomicPtr::fetch_update サンプル BTreeMap::retai
Release date: November 12, 2025 Update 1.106.1: The update addresses these issues Update 1.106.2: The update addresses these issues Update 1.106.3: The update addresses these issues Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the October 2025 release of Visual Studio Code. This release brings significant updates across three key areas:
Transformer models: an introduction and catalog — 2023 Edition January 16, 2023 52 minute read This post is now an ArXiV paper that you can print and cite. Update 05/2023 Another pretty large update after 4 months. I was invited to submit the article to a journal, so I decided to enlist some help from some LinkedIn colleages and completely revamp it. First off, we added a whole lot of new models,
Version 1.108 is now available! Read about the new features and fixes from December. Update 1.75.1: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the January 2023 release of Visual Studio Code. There are many updates in this version that we hope you'll like, some of the key highlights include: Profiles -
Introduction Some part of me has always been fascinated with coercing code to run in weird places. I scratch this itch a lot with my security research projects. These often lead me to writing shellcode to run in kernels or embedded hardware, sometimes with the only way being through an existing bug. For those not familiar, shellcode is honestly hard to describe. I don’t know if there’s a very form
dbtCloudから作成したPullRequestにコンパイル済みSQLをコメントする仕組みを作成した話 - Timee Product Team Blog
こんにちは☀️ タイミーでアナリストとアナリティクスエンジニアしてますokodoonです 今回の記事はdbt CloudでPull Requestを作るときに、レビュー負荷が高くなってしまっていた問題を解消できるように、コンパイル済みのSQLをPR上にコメントするような仕組みを作成したことについての紹介です。 もし同じような課題感を抱えている方がいらっしゃれば、参考にしていただければ幸いです 課題感 今回選択した解決策 背景/前提 実装概要 各ステップの説明 PRの情報をもとにprofiles.ymlの動的生成 コンパイル処理の実施 PR上にコメント どんなふうに動くかみてみる 結果 We’re Hiring! 課題感 弊社のデータ基盤ではDWH層DataMart層は「分析用に加工されたデータを扱う層」として定義しています。 各種ドメインに依存した集計や変換のロジックが含まれるため、この層
Update 1.60.1: The update addresses these issues. Update 1.60.2: The update addresses these issues. Downloads: Windows: x64 Arm64 | Mac: Universal Intel silicon | Linux: deb rpm tarball Arm snap Welcome to the August 2021 release of Visual Studio Code. There are many updates in this version that we hope you will like, some of the key highlights include: Automatic language detection - Programming l
This past May, I started a new job working in Rust. I was somewhat skeptical of Rust for a while, but it turns out, it really is all it’s cracked up to be. As a long-time C++ programmer, and C++ instructor, I am convinced that Rust is better than C++ in all of C++’s application space, that for any new programming project where C++ would make sense as the programming language, Rust would make more
Exactly ten years ago today, we published "Why We Created Julia", introducing the Julia project to the world. At this point, we have moved well past the ambitious goals set out in the original blog post. Julia is now used by hundreds of thousands of people. It is taught at hundreds of universities and entire companies are being formed that build their software stacks on Julia. From personalized me
Try Mastering Emacs for free! Are you struggling with the basics? Have you mastered movement and editing yet? When you have read Mastering Emacs you will understand Emacs. It’s that time again: there’s a new major version of Emacs and, with it, a treasure trove of new features and changes. Notable features include the formal inclusion of native compilation, a technique that will greatly speed up y
Type Parameters Proposal
Ian Lance Taylor Robert Griesemer August 20, 2021 StatusThis is the design for adding generic programming using type parameters to the Go language. This design has been proposed and accepted as a future language change. We currently expect that this change will be available in the Go 1.18 release in early 2022. AbstractWe suggest extending the Go language to add optional type parameters to type an
o1 pro + AIエンジニアにチャットで指示しながら、研究的なことをさせてみる ｜Kan Hatakeyama
はじめに自律的にプログラミングをしてくれるAIエンジニアをいい感じに動かせるようになってきたので、今日はChatGPT + devinで研究的なことをさせてみます。 自動研究といえば、昨年の夏に話題になった、Sakana AIのAIサイエンティストが有名です。 ただ、研究のネタを考えるのはまだあまり得意でない気がしたので、今回は適宜、そこはスマホで指示を出しながら、human in the loopで進めていきます。 最初のセットアップを除いて、チャットをするだけで、基本的な研究作業をこなせそう感じでした。 下準備: リポジトリを作ってdevinに登録するはじめに、パソコンを使って設定をします。このセクションの作業以降は、スマホがあればOKです。 githubでレポジトリを作り、一つだけ、開発方針に関するファイルを作っておきます。 DevelopmentPolycy.md 開発､コメントな
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プロと読み解く Ruby 3.1 NEWS - クックパッド開発者ブログ
プロと読み解くRuby 3.4 NEWS - STORES Product Blog
The Prompt Engineering Playbook for Programmers
Writing a C compiler in 500 lines of Python
RubyのGVLを消し去りたいあなたへ（翻訳）｜TechRacho by BPS株式会社
Prototyping in Rust | corrode Rust Consulting
Changing std::sort at Google’s Scale and Beyond
March 2025 (version 1.99)
A new way to bring garbage collected programming languages efficiently to WebAssembly · V8
Kalyn: a self-hosting compiler for x86-64
Performance of WebAssembly runtimes in 2023
0.8.0 Release Notes ⚡ The Zig Programming Language
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Pi: The Minimal Agent Within OpenClaw
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A 2025 Survey of Rust GUI Libraries
Rust 1.53を早めに深掘り - OPTiM TECH BLOG
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Transformer models: an introduction and catalog — 2023 Edition
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Rust on MIPS64 Windows NT 4.0
August 2021 (version 1.60)
Sayonara, C++, and hello to Rust!
Why We Use Julia, 10 Years Later
What's New in Emacs 28.1?