this post was submitted on 29 Oct 2023
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Trying to invent a better substring search algorithm (marcos.unsafe.rs)
submitted 1 year ago by snaggen@programming.dev to c/rust@programming.dev
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[–] burntsushi@programming.dev 8 points 1 year ago (1 children)

Disclosure: I'm the author of the memchr crate.

You mention the memchr crate, but you don't seem to have benchmarked it. Instead, you benchmarked the needle crate (last updated 7 years ago). Can you explain a bit more about your methodology?

The memchr crate in particular doesn't just use Rabin-Karp. It also uses Two-Way. And SIMD (with support for x86-64, aarch64 and wasm32).

[–] snaggen@programming.dev 4 points 1 year ago* (last edited 1 year ago) (1 children)

FYI: Not the author, just found it to be an interesting read. Notified the author, so lets hope he joins in for a nice discussion.

[–] burntsushi@programming.dev 2 points 1 year ago

Ah gotya, thanks!