Horton

Re: Proposal for Updating CRC32C with AVX-512 Algorithm.

Matthew Sterrett <matthewsterrett2@gmail.com>

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From: "Sterrett, Matthew" <matthewsterrett2@gmail.com>
To: "Devulapalli, Raghuveer" <raghuveer.devulapalli@intel.com>, Nathan Bossart <nathandbossart@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, Bruce Momjian <bruce@momjian.us>, Alvaro Herrera <alvherre@alvh.no-ip.org>, "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>, "Shankaran, Akash" <akash.shankaran@intel.com>
Date: 2024-12-19T00:00:37Z
Lists: pgsql-hackers

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  1. Compute CRC32C using AVX-512 instructions where available

Attachments


On 12/7/2024 12:42 AM, Devulapalli, Raghuveer wrote:
>> [0] https://cirrus-ci.com/task/6023394207989760
>> [1] https://cirrus-ci.com/task/5460444254568448
>> [2] https://cirrus-ci.com/task/6586344161411072
> 
> I was able to fix [0] and [1], but I can't think of why [2] fails. When I tried to reproduce this locally, I get a different unrelated error. Any idea why I am seeing this?
> 
> LINK : fatal error LNK1181: cannot open input file 'C:\Program Files\Git\nologo'
> 
> Commands: meson setup build && cd build && meson compile

Hello! I'm Matthew Sterrett and I'm a coworker of Raghuveer; he asked me 
to look into the Windows build failures related to pg_comp_crc32c.

It seems that the only thing that was required to fix that is to mark 
pg_comp_crc32c as PGDLLIMPORT, so I added a patch that does just that. 
I'm new to working with mailing lists, so please tell me if I messed 
anything up!

Matthew Sterrett