2024-03-12のJS: Tailwind CSS v4.0 alpha、TypeScript 5.4、Speedometer 3.0
JSer.info #684 - Tailwind CSS v4.0 alphaがリリースされました。 Open-sourcing our progress on Tailwind CSS v4.0 - Tailwind CSS OxideというRustで書かれたエンジンを追加、Lightning CSSを組み込むように変更することでパフォーマンスやビルドトインでサポートする構文が改善されています。また、記事ではv4のロードマップについても触れられています。 TypeScript 5.4がリリースされました。 Announcing TypeScript 5.4 - TypeScript BetaやRCからの大きな機能的な追加などはありません。 クロージャーにおけるNarrowing結果の改善、NoInfer Utility Typeの追加、 --module preserveの追加が行われ
Speedometer 3.0: The Best Way Yet to Measure Browser Performance
As announced on browserbench.org today, in collaboration with other browser engine developers, Apple’s WebKit team is excited to introduce Speedometer 3.0, a major update that better reflects the Web of today. It’s built together by the developers of all major browser engines: Blink, Gecko, and WebKit with hundreds of contributions from companies like Apple, Google, Intel, Microsoft, and Mozilla.
CodSpeed: Continuous Benchmarking
Continuous BenchmarkingA safer path to deliveryMake sure your deliveries are production-ready by continuously measuring your code execution speed. Prevent UX RegressionsEvery millisecond counts to ensure an optimal experience for your users. Check your latencies and make sure your users will not be affected by your new deliveries. Avoid Production IssuesSome lines of code are critical hidden threa
GitHub - evanwashere/mitata: cross-runtime benchmarking lib and cli
import { run, bench, group, baseline } from 'mitata'; // deno // import { ... } from 'npm:mitata'; // d8/jsc // import { ... } from '<path to mitata>/src/cli.mjs'; bench('noop', () => {}); bench('noop2', () => {}); group('group', () => { baseline('baseline', () => {}); bench('Date.now()', () => Date.now()); bench('performance.now()', () => performance.now()); }); group({ name: 'group2', summary: f
Performance of WebAssembly runtimes in 2023 | Frank DENIS random thoughts.
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, in allowed contexts allowing it,this gave a nice speed boost. Like Ja
Which serverless edge platform has the fastest git deployments?
Which serverless edge platform has the fastest git deployments? Deploying to the edge is becoming more common, with multiple services that offer serverless edge computing. One of the most important factors is speed of deployment, since context switching and waiting for code to build and deploy can halt momentum, flow state, and developer productivity. So, which serverless edge compute platform han
GitHub - tinylibs/tinybench: 🔎 A simple, tiny and lightweight benchmarking library!
import { Bench } from 'tinybench'; const bench = new Bench({ time: 100 }); bench .add('faster task', () => { console.log('I am faster') }) .add('slower task', async () => { await new Promise(r => setTimeout(r, 1)) // we wait 1ms :) console.log('I am slower') }) .todo('unimplemented bench') await bench.warmup(); // make results more reliable, ref: https://github.com/tinylibs/tinybench/pull/50 await
Will Bun JavaScript Take Node's Crown
Huge thanks to Jarred Sumner for reviewing this post. It wouldn’t have been possible without his help. Bun is a new and ambitious JavaScript toolset and runtime. Early adopters have been reporting that Bun JavaScript is incredibly fast. So fast that it has been touted by some as a Node.js killer. Curious, I decided to check out Bun for myself and benchmark it against the competition. Is it as fast
Introducing Shadower: A Minimalistic Load Testing Tool
You’re seeing information for Japan . To see local features and services for another location, select a different city. Show more Introduction Shadower is a load testing tool that allows us to provide load testing as a service to any microservice at Uber. Shadower started as a command line application that allowed us to read a local file to load test a local application. At the time, Maps PEs were
Ddosify | Effortless Observability | Ddosify | Effortless Observability
Ridiculously Simple SetupGet started under one minute with just one command and instantly get your cluster's service map, metrics with detailed traffic insights! Power of eBPFUnlike traditional observability solutions, Ddosify requires no code changes, no performance overhead, no sidecars, no instrumentation, and no service restarts. Out of the box DashboardsDdosify provides out-of-the-box dashboa
1. Techempower Rankings
25 October 2020 On Javascript Performance 1. Techempower Rankings by billwhizz Why is Javascript in the top 2 of techempower? This question was recently asked on github, prompted by the arrival of a new javascript platform near the summit of the intermediate techempower rankings. This platform, Just(js), is something I have been hacking on as a side-project for some time now. Here I will attempt t
Your benchmark may not guide real application performance - Speaker Deck
All slide content and descriptions are owned by their creators.
継続的にベンチマークを取るための GitHub Action をつくった - はやくプログラムになりたい
今年9月に GitHub Action v2 がリリースされました．GitHub Action は GitHub が提供する CI/CD サービスです． 既存のサービスと大きく違う点は，処理を汎用的に Action として切り出して再利用できることです． 例えば，GitHub からのリポジトリのクローン actions/fetch や Node.js のセットアップ actions/setup-node などの基本的な実行ステップも Action として実装されています． 今回はこの GitHub Action を利用して，前々からあると良いなと思っていたベンチマークを継続的に取るための Action をつくりました． github.com github-action-benchmark はベンチマークの実行の出力からベンチマーク結果を抽出し，GitHub pages のブランチに JSO
isucon9q_bench.md
isucon9q_bench.md ISUCONのベンチマーカーとGo catatsuy メルカリSRE mercari.go #11 - connpass https://mercari.connpass.com/event/148913/ ISUCONとは http://isucon.net お題となるWebサービスを決められたレギュレーションの中で限界まで高速化を図るチューニングバトル 競技者は与えられたWebアプリケーションを高速化する 複数の言語による実装（ISUCON9予選ではGo/Perl/PHP/Ruby/Node.js/Python）を運営側が用意する ベンチマークを実行するとアプリケーションに対して仕様確認・負荷走行をしてスコアが出力される 私とISUCON ISUCON4：2位（初出場） ISUCON5：8位 ISUCON6：運営（本選） ISUCON7：予選敗退 I
A RealWorld Comparison of Front-End Frameworks with Benchmarks (2019 update)
by Jacek Schae A RealWorld Comparison of Front-End Frameworks with Benchmarks (2019 update)Also available in: Turkish — thanks to @erdenizZz, Portugues — thanks to @felipefialho For the third time, we are comparing Front-End frameworks by using the Real World example apps. RealWorld example app gives us: RealWorld App Something more than a “todo”. Usually “todos” don’t convey enough knowledge and
Introducing the JetStream 2 Benchmark Suite
Today we are announcing a new version of the JetStream JavaScript benchmark suite, JetStream 2. JetStream 2 combines a variety of JavaScript and WebAssembly benchmarks, covering an array of advanced workloads and programming techniques, and reports a single score that balances them using a geometric mean. JetStream 2 rewards browsers that start up quickly, execute code quickly, and run smoothly. O
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GitHub - moltar/typescript-runtime-type-benchmarks: 📊 Benchmark Comparison of Packages with Runtime Validation and TypeScript Support
GitHub - privatenumber/minification-benchmarks: 🏃♂️🏃♀️🏃 JS minification benchmarks: babel-minify, esbuild, terser, uglify-js, swc, google closure compiler, tdewolff/minify
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GitHub - sharkdp/hyperfine: A command-line benchmarking tool
