https://github.com/tokenrove/trivial-crc32c

Trivial SSE4.2 CRC32C from Rust
https://github.com/tokenrove/trivial-crc32c

crc32c inline-assembly library rust sse42 trivial

Last synced: 19 days ago
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Trivial SSE4.2 CRC32C from Rust

• Host: GitHub
• URL: https://github.com/tokenrove/trivial-crc32c
• Owner: tokenrove
• Created: 2017-04-18T18:18:30.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2017-05-17T15:50:36.000Z (almost 8 years ago)
• Last Synced: 2025-02-09T08:16:41.427Z (2 months ago)
• Topics: crc32c, inline-assembly, library, rust, sse42, trivial
• Language: Rust
• Size: 2.93 KB
• Stars: 0
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
There's a more comprehensive CRC32C crate available at:

  - https://github.com/lemonrock/crc32c-sse42

But I had a few reasons for writing this one:

 - the workload I need crc32c for is many very small messages, and

   according to the original Intel paper, around 96 bytes is the point

   at which it even makes sense to start using tricks like `CLMUL`;

   (of course, don't trust me -- benchmark!)

 - I wanted something that didn't have a dozen C files and

   dependencies on yasm and so on to build.  This crate takes a

   simpler approach: you get an SSE4.2 implementation using inline

   assembly (and thus, requiring nightly rust).  If your CPU does not

   support these instructions, you lose.

I might add an explicitly simple fallback for debug builds running on

VMs or similar.

## License

BSD