This Pattern Will Wreck Your React App's TS Performance
Matt PocockMatt is a well-regarded TypeScript expert known for his ability to demystify complex TypeScript concepts. A couple of years ago, Sentry were having big problems with their React app. They'd pretty recently migrated it to TypeScript from JavaScript. And the app was part of a large monorepo. But the IDE performance was slow. You'd often need to wait a couple of seconds after making a chan
Optimize long tasks | Articles | web.dev
Optimize long tasks Stay organized with collections Save and categorize content based on your preferences. Commonly available advice for making your JavaScript apps faster often includes "Don't block the main thread" and "Break up your long tasks." This page breaks down what that advice means, and why optimizing tasks in JavaScript is important. What is a task? A task is any discrete piece of work
C Runtime Overhead
What do you do when libc is your bottleneck? If the total runtime of your process is under 10ms, most of this time (depending on your hardware) is spent waiting for the linker and C runtime to set things up. If you compare this to the Latency Numbers Every Programmer Should Know, it falls right above "disk seek" and "20x datacenter roundtrip". Stripe launched their third CTF in early 2014. While t
How I made Google’s data grid scroll 10x faster with one line of CSS
In my company, we use Google Search Console to check indexing status and optimize visibility of our websites. You can also check which external websites link to your page, and as I was browsing the “Top linking sites” page I noticed major scroll lag. This happens when choosing to display a larger dataset (500 rows) instead of the default 10 results. The “Top linking sites” section in Google Search
Real-world CSS vs. CSS-in-JS performance comparison
CSS-in-JS has taken a solid place in front-end tooling, and it seems this trend will continue in the near future. Especially in the React world. For example, out of 11492 people who participate in State of CSS survey in 2020 only 14.3% didn’t hear of Styled Components (a dominant CSS-in-JS library). And more than 40% of participants have used the library. I wanted to see an in-depth performance co
楽しく役に立つCSSのプロファイリング | POSTD
私はここ最近、いわゆるシングルページWebアプリケーションのパフォーマンスの最適化に取り組んでいます。そのアプリケーションは非常に動的かつインタラクティブで、新しいCSS3の利点が詰め込まれたものです。単に角丸やグラデーションの効果にとどまらず、影やグラデーション、要素の変形がふんだんに使われており、加えてtransition効果（時間的変化）や多彩な半透明色、疑似要素をベースにしたCSSの巧妙なトリック、それに実験的なCSSの特徴がちりばめられています。 分析する際には、Javascript/DOM側のボトルネックだけではなく、CSSの領域にも踏み込んでみました。上に挙げたすばらしいUIの要素が、パフォーマンスにどのような影響を及ぼしているかを見たかったからです。このアプリケーションのベースにあるJavascriptのロジックは以前（表面的な装飾のないバージョン）からさほど変わってはいま
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
SpeedCurve | Website Performance Monitoring