Re: add AVX2 support to simd.h

John Naylor <johncnaylorls@gmail.com>

From: John Naylor <johncnaylorls@gmail.com>

To: Nathan Bossart <nathandbossart@gmail.com>

Cc: Ants Aasma <ants@cybertec.at>, pgsql-hackers@postgresql.org

Date: 2024-01-01T12:12:26Z

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 →

Improve style of pg_lfind32().
- 7188a7806d20 17.0 landed
Fix compiler warning for pg_lfind32().
- 1f42337be535 17.0 landed
Micro-optimize pg_lfind32().
- 7644a7340c8a 17.0 landed
Introduce helper SIMD functions for small byte arrays
- 9f225e992bed 17.0 cited
Optimize xid/subxid searches in XidInMVCCSnapshot().
- 37a6e5df3713 16.0 cited

On Thu, Nov 30, 2023 at 12:15 AM Nathan Bossart
<nathandbossart@gmail.com> wrote:
> I don't intend for this patch to be
> seriously considered until we have better support for detecting/compiling
> AVX2 instructions and a buildfarm machine that uses them.

That's completely understandable, yet I'm confused why there is a
commitfest entry for it marked "needs review".