RE: Proposal for Updating CRC32C with AVX-512 Algorithm.

Devulapalli, Raghuveer <raghuveer.devulapalli@intel.com>

From: "Devulapalli, Raghuveer" <raghuveer.devulapalli@intel.com>

To: Nathan Bossart <nathandbossart@gmail.com>

Cc: Bruce Momjian <bruce@momjian.us>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Andres Freund <andres@anarazel.de>, "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>, "Shankaran, Akash" <akash.shankaran@intel.com>

Date: 2024-10-18T21:23:38Z

Lists: pgsql-hackers

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Compute CRC32C using AVX-512 instructions where available
- 3c6e8c123896 18.0 landed

> I've proposed a patch to move the existing AVX-512 code in Postgres to use
> __attribute__((target("..."))) instead of per-translation-unit compiler flags [0].  We
> should likely do something similar for this one.
> 
> [0] https://postgr.es/m/ZxAqRG1-8fJLMRUY%40nathan

I assume this will be committed separately and then I can rebase? 

> 
> --
> nathan