Code-used-on-Daniel-Lemire-s-blog VS zune-jpeg

It's not bad at all https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog/...

A newline is missing in the example code. As given there's a segfault at line 5 not line 6.

However, the code at https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog/... shows it's indeed at line 6, because it has an extra newline after the '#include '.

Daniel Lemire's Blog : Daniel Lemire's blog

Dr. Daniel Lemire's blog: https://lemire.me/blog, covers lots of technical items on optimizations in various programming languages, Lemire's work is currently in use across a number of projects and he consistently delivers fantastic improvements, he usually accompanies these improvements with a blog post describing what he did. He also occasionally posts interesting Science and Technology links on various topics not limited to tech, but health and education as well.

Nope, simdjson is originally from Daniel Lemire who also often blogs about fancy low level optimizations: https://lemire.me/blog/ I'm just a happy user :)

Added this pull request with some interesting results.

There's a copy of the loop used on the escape function inside the avx512_escape function [0]. Is it needed or just a copy and paste mistake? (I know nothing about vector instructions)

0: https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog/...

Congrats, but you dropped this.

Alternatively, you can round up the array length to the nearest power of 2 and use cheap bitmasking instead of branching bounds checks. If it goes wrong, it will access the wrong element but will not result in any code execution vulnerabilities. Here's an example of this in zune-jpeg.

gif, png, zune-jpeg are on par with their C counterparts in terms of performance

here

Based on some experience writing a jpeg decoder library, I'd like to give my two cents worth of information

Answer pretty fast