alt.hn

2/27/2026 at 1:12:38 PM

Chorba: A novel CRC32 implementation (2024)

 https://arxiv.org/abs/2412.16398

by fnands

3/1/2026 at 9:37:03 PM

This repo's readme gives a great overview of the previous-best approaches (as of ~6 years ago): https://github.com/komrad36/CRC

by Retr0id

2/27/2026 at 1:12:38 PM

News to me, but a guy named Sam Russell came up with a new software only CRC32 algorithm that is competitive with hardware accelerated implementations. It's a surprisingly elegant solution.

by fnands

3/1/2026 at 10:24:12 PM

Anyone can replicate the results? In any case, works like this give me moments of epiphany when I start to believe the humanity is not totally lost.

by garganzol

3/1/2026 at 10:00:08 PM

What are the units on the vertical axes for figures 1 and 2? I might have guessed seconds per TiB but the braiding line doesn't seem to match what's in figure 3.

by omoikane

3/1/2026 at 9:13:35 PM

In Spain, "chorba" is very informal slang for "gal" [0]. Not vulgar, just very informal vernacular.

[0] https://dle.rae.es/chorbo

by david-gpu

3/1/2026 at 10:42:52 PM

All this talk of soup making me wonder if these are Arabic/ME derivatives.

Then again there are like 10 different ways to refer to soup in the various dialects.

by nzeid

3/1/2026 at 11:17:40 PM

The wikipedia article traces it to Persian, which formed it as a compound of words from different East Iranian languages. So you are on the money with Middle Eastern. From there it spread to the Balkan via Ottoman Turkish, and also from Persian to dialectal Arabic, which would explain the occurrences in Northern Africa, and maybe even Spain

by wongarsu

3/1/2026 at 9:39:07 PM

> Dedication

> This implementation is named after the Serbian singer Bora Đorđević (also known as Bora Čorba) who was born in 1952 and died in 2024. His birth year matches the number of the GZIP standard RFC 1952 that describes a common CRC32 implementation, and the original proof of concept for this method used the polynomial x21 +x15 + x14 + x11 + x10 + x7 + x3 which is x1952×8 mod G(x).

That is indeed dedication.

by ranger_danger