Horton

Re: Replace known_assigned_xids_lck by memory barrier

Nathan Bossart <nathandbossart@gmail.com>

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From: Nathan Bossart <nathandbossart@gmail.com>
To: Michail Nikolaev <michail.nikolaev@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Tom Lane <tgl@sss.pgh.pa.us>
Date: 2023-09-01T18:40:17Z
Lists: pgsql-hackers 
On Wed, Aug 16, 2023 at 01:07:15PM -0700, Nathan Bossart wrote:
> Ah, that explains it.  v5 of the patch is attached.

Barring additional feedback, I plan to commit this patch in the current
commitfest.

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

Commits

  1. Replace known_assigned_xids_lck with memory barriers.

  2. Replace the KnownAssignedXids hash table with a sorted-array data structure,