Performance | Alexis Hope

Nim's Garbage Collection — From Automatic to None

June 15, 2022

#Nim #GarbageCollection #ARC #ORC #Systems #Performance #Memory

One of the things that drew me to Nim is the degree of control it offers over memory management without forcing you to the extreme of a borrow checker. The default experience is a garbage-collected language that feels like Python. The far end of the dial is manual memory management that compiles to idiomatic C with no runtime overhead. Between those two points is a set of options worth understanding in detail — because the right choice depends heavily on what you’re building.

Responsive Images in HTML

August 16, 2021

#HTML #Images #Performance #SEO #Cloudinary #WebP #AVIF

A single <img src="hero.jpg"> used to be the only option. It still works — but it means serving a 2400px image to a device with a 375px screen, and serving that same image as a JPEG to a browser that would have accepted AVIF at a third of the file size. The browser has had the primitives to do better than this for years. Most sites don’t use them correctly.