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JavaScript Bloat in 2024
(tonsky.me)
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this post was submitted on 01 Apr 2024
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I read this article a few weeks ago and it sent me on a rabbit hole of web performance articles.
I think a good budget for basic websites (articles, landing pages, and small to medium functionality web apps) is what I call the "GZ250", or 250KB of gzipped JavaScript, which is more than plenty. I picked this amount such that yesterday's budget phones will be able to load the website in a few seconds at 1Mbps (and the name references my motorcycle).
For comparison, my full on games take way less than that. The Unscaled Incremental and Elemental Incremental are 52KB and 19KB of compressed JS respectively, and v1.0 of my new deckbuilding game is about 27KB. The unreleased V1.1 is massive but will still be around 50-60KB of compressed JS.
I don't understand how an article uses 60x the script as my games, but cutting back to 6x would be a win for accessibility and efficiency.
Did you see this article by Dan Luu? https://danluu.com/slow-device/
Super interesting. It's a discussion from a point of view I hadn't considered before: how bandwidth has increased much more than CPU performance of web apps. I felt this in a way as my main computer until recently was a mini PC with the an Intel i5-5250U processor. Despite my Internet connection going from a 10mbps link to a 300mbps link, and pings dropping from 25ms to <5ms, browsing the web on the device became unbearable.
Interesting, it kinda feels like the opposite is true for me, at least on mobile. In 4 years, I've gone from a 1.4GHz A53 SD425 to a 2.2GHz A78 SD695 SoC, a 6x increase in single thread performance in 4 years for me. I also during that time got a powerful laptop with a Ryzen 9 5900HX CPU.
Meanwhile, it's still not unusual to see my Internet speeds drop below 1Mbps, often hovering around 100Kbps-300Kbps, on data or crappy university WiFi, which sometimes has a ping of no joke, 20000+ on my laptop when running Ubuntu. I can sometimes reach high throughput of up to 100Mbps, but when I don't, my Internet speeds often chug.