Re: optimize several list functions with SIMD intrinsics

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: optimize several list functions with SIMD intrinsics
Date: 2023-03-08 04:56:58
Message-ID: 20230308045658.GA3419785@nathanxps13
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On Wed, Mar 08, 2023 at 01:54:15PM +1300, David Rowley wrote:
> Interesting and quite impressive performance numbers.

Thanks for taking a look.

> From having a quick glance at the patch, it looks like you'll need to
> take some extra time to make it work on 32-bit builds.

At the moment, the support for SIMD intrinsics in Postgres is limited to
64-bit (simd.h has the details). But yes, if we want to make this work for
32-bit builds, additional work is required.

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

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