Comparing Rust and JavaScript

#1

Post by orixilus » Fri, Jul 15, 2022, 11:15 AM UTC

Comparing Rust and JavaScript
chaotic.netlify.app

Re: Comparing Rust and JavaScript

#2

Post by N-Krause » Fri, Jul 15, 2022, 12:24 PM UTC

Can someone explain what exactly I am looking at here? The about page seems to be an empty page for me.

Re: Comparing Rust and JavaScript

#3

Post by substation13 » Fri, Jul 15, 2022, 12:26 PM UTC

N-Krause wrote: post #2

Can someone explain what exactly I am looking at here? The about page seems to be an empty page for me.

https://github.com/dmaynard/chaos-screen-saver/blob/master/R...

Re: Comparing Rust and JavaScript

#4

Post by conqueso » Fri, Jul 15, 2022, 12:26 PM UTC

N-Krause wrote: post #2

Can someone explain what exactly I am looking at here? The about page seems to be an empty page for me.

Maybe you have an ad blocker on or something? The about button links here: https://github.com/dmaynard/chaos-screen-saver/blob/master/R...

Re: Comparing Rust and JavaScript

#5

Post by montroser » Fri, Jul 15, 2022, 12:33 PM UTC

More of a comparison between WebAssembly and JavaScript, really. That the WebAssembly was compiled from Rust is not especially meaningful here.

Re: Comparing Rust and JavaScript

#6

Post by ostenning » Fri, Jul 15, 2022, 12:34 PM UTC

N-Krause wrote: post #2

Can someone explain what exactly I am looking at here? The about page seems to be an empty page for me.

Compares the rendering speed of Javascript/ES-6 to WASM compiled from Rust. Result: JS/ES-6: ~4000 pixels per millisecond. WASM/Rust: ~16000 pixels per millisecond. These results are on Firefox using M1 Max

Re: Comparing Rust and JavaScript

#7

Post by qsort » Fri, Jul 15, 2022, 12:34 PM UTC

I get that the intended meaning is "JS sux", but I can't help being impressed with how performant engines are. The "pixels per ms" count ratio is less than 3:1 on my machine, in what I imagine is a CPU-heavy task.

Re: Comparing Rust and JavaScript

#8

Post by wdroz » Fri, Jul 15, 2022, 12:35 PM UTC

It's nice to see how much faster is wasm. This kind of problem would also be nice for parallelization. What's the state of multi-threading wasm? any advantage over javascript web workers?

Re: Comparing Rust and JavaScript

#9

Post by maverwa » Fri, Jul 15, 2022, 12:41 PM UTC

montroser wrote: post #5

More of a comparison between WebAssembly and JavaScript, really. That the WebAssembly was compiled from Rust is not especially meaningful here.

Not sure, it could also be viewed as a comparison of ahead-of-time compilation vs. just-in-time compilation (I guess the code paths are hot enough to be completely "jit-ed" here), and then the compiler isnt irrelevant at all.

But havent looked into the details on how much difference that alone makes in this case.

I think its also a testament on how fast JS has gotten.

Re: Comparing Rust and JavaScript

#10

Post by ufo » Fri, Jul 15, 2022, 12:42 PM UTC

qsort wrote: post #7

I get that the intended meaning is "JS sux", but I can't help being impressed with how performant engines are. The "pixels per ms" count ratio is less than 3:1 on my machine, in what I imagine is a CPU-heavy task.

On my phone it's closer to 6:1. 500 jumps to 3000 with WASM