From: Nathan Bossart <nathandbossart@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: Jeff Davis <pgsql@j-davis.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: Should io_method=worker remain the default?
Date: Mon, 8 Sep 2025 15:14:01 -0500
Message-ID: <aL85CeasM51-0D1h@nathan> (raw)
In-Reply-To: <cmrpnnmbd4tajrg3lfnvzfo224siwyxzc6homaf2bvpmabiln5@jzfsvlsyoqtj>
References: <d68e2a4f8c356107e5167408ad80eaa2fac0f57d.camel@j-davis.com>
<adywrhdn5zcfeldzug2pkzbdxizactr46goh4doiztvexrqomy@lgvl26gui63a>
<a81f2f7ef34afc24a89c613671ea017e3651329c.camel@j-davis.com>
<1b50102876dc9564049c985cff0ec1903cc8d502.camel@j-davis.com>
<cmrpnnmbd4tajrg3lfnvzfo224siwyxzc6homaf2bvpmabiln5@jzfsvlsyoqtj>
On Mon, Sep 08, 2025 at 01:43:45PM -0400, Andres Freund wrote:
> On 2025-09-05 16:07:09 -0700, Jeff Davis wrote:
>> 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.
>
> Yes, that's an oversight.
>
>> 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.
>
> Yes, we should do this - the patch looks good to me.
I think we need to do something similar for numeric.c.
inline patch 1: src/backend/utils/adt/meson.build (+9/-1 lines) download inline-1.patchdiff --git a/src/backend/utils/adt/meson.build b/src/backend/utils/adt/meson.buildindex dac372c3bea..7d0688ddb87 100644--- a/src/backend/utils/adt/meson.build+++ b/src/backend/utils/adt/meson.build@@ -1,5 +1,14 @@
# Copyright (c) 2022-2025, PostgreSQL Global Development Group
+numeric_backend_lib = static_library('numeric_backend_lib',+ 'numeric.c',+ dependencies: backend_build_deps,+ kwargs: internal_lib_args,+ c_args: vectorize_cflags,+)++backend_link_with += numeric_backend_lib+
backend_sources += files(
'acl.c',
'amutils.c',
@@ -61,7 +70,6 @@ backend_sources += files(
'network_gist.c',
'network_selfuncs.c',
'network_spgist.c',
- 'numeric.c',
'numutils.c',
'oid.c',
'oracle_compat.c',
--
nathan
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To: pgsql-hackers@postgresql.org
Cc: nathandbossart@gmail.com, andres@anarazel.de, pgsql@j-davis.com
Subject: Re: Should io_method=worker remain the default?
In-Reply-To: <aL85CeasM51-0D1h@nathan>
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