| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | "Amonson, Paul D" <paul(dot)d(dot)amonson(at)intel(dot)com> |
| Cc: | "Shankaran, Akash" <akash(dot)shankaran(at)intel(dot)com>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, Noah Misch <noah(at)leadboat(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, 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: | 2024-02-07 19:53:40 |
| Message-ID: | 202402071953.5c4z7t6kl7ts@alvherre.pgsql |
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| Lists: | pgsql-hackers |
I happened to notice by chance that John Naylor had posted an extension
to measure performance of popcount here:
https://postgr.es/m/CAFBsxsE7otwnfA36Ly44zZO+b7AEWHRFANxR1h1kxveEV=ghLQ@mail.gmail.com
This might be useful as a base for a new one to verify the results of
the proposed patch in machines with relevant instruction support.
--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"We're here to devour each other alive" (Hobbes)
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