Re: Popcount optimization using AVX512

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Ants Aasma <ants(dot)aasma(at)cybertec(dot)at>, "Amonson, Paul D" <paul(dot)d(dot)amonson(at)intel(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, "Shankaran, Akash" <akash(dot)shankaran(at)intel(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Popcount optimization using AVX512
Date: 2024-04-03 17:41:27
Message-ID: 20240403174127.GA3745637@nathanxps13
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I committed v23-0001. Here is a rebased version of the remaining patches.
I intend to test the masking idea from Ants next.

--
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

Attachment Content-Type Size
v24-0001-AVX512-popcount-support.patch text/x-diff 29.6 KB
v24-0002-optimize-visibilitymap_count-with-AVX512.patch text/x-diff 11.8 KB

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