Horton

Re: Should io_method=worker remain the default?

Jeff Davis <pgsql@j-davis.com>

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From: Jeff Davis <pgsql@j-davis.com>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@postgresql.org
Date: 2025-09-05T23:07:09Z
Lists: pgsql-hackers

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On Fri, 2025-09-05 at 13:25 -0700, Jeff Davis wrote:
> As an aside, I'm building with meson using -Dc_args="-msse4.2 -Wtype-
> limits -Werror=missing-braces". But I notice that the meson build
> doesn't seem to use -funroll-loops or -ftree-vectorize when building
> checksums.c. Is that intentional? If not, perhaps slower checksum
> calculations explain my results.

Attached a patch. I'm not sure if it's the right way to do things, but
the resulting compiler command seems right to me.

It doesn't affect my tests in this thread much, but it seems best to be
consistent with autoconf.

Regards,
	Jeff Davis

Commits

  1. meson: Build numeric.c with -ftree-vectorize.

  2. meson: build checksums with extra optimization flags.