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

Nathan Bossart <nathandbossart@gmail.com>

From: Nathan Bossart <nathandbossart@gmail.com>

To: "Devulapalli, Raghuveer" <raghuveer.devulapalli@intel.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: 2024-10-18T16:31:54Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

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

On Tue, Oct 08, 2024 at 08:19:27PM +0000, Devulapalli, Raghuveer wrote:
> Hi all, I'm currently in the process of reviewing and analyzing Paul's
> patch. In the meantime, I'm open to addressing any questions or feedback
> you may have.

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

-- 
nathan