Re: [PATCH] Let's get rid of the freelist and the buffer_strategy_lock

Greg Burd <greg@burd.me>

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From: Greg Burd <greg@burd.me>

To: Andres Freund <andres@anarazel.de>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2025-07-27T14:12:11Z

Lists: pgsql-hackers

Attachments

v11-0001-Eliminate-the-freelist-from-the-buffer-manager-a.patch (text/x-patch) patch v11-0001
v11-0002-Remove-the-buffer_strategy_lock-and-make-the-clo.patch (text/x-patch) patch v11-0002
v11-0003-Abstract-clock-sweep-buffer-replacement-algorith.patch (text/x-patch) patch v11-0003

On 7/25/25 15:02, Greg Burd wrote:
> Patch set is now:
>
> 1) remove freelist
>
> 2) remove buffer_strategy_lock
>
> 3) abstract clock-sweep to type and API
>
>
>
> -greg

Somehow including the test.c file as an attachment on my last email
confused the CI and it didn't test the v10 patch set (which did pass in
GitHub CI on my fork [1]).  Here's v11 unchanged from v10 except rebased
onto 258bf0a2ea8 cf PG 19-2 5928 [2].

best,

-greg

[1] https://github.com/gburd/postgres/pull/10/checks

[2] https://commitfest.postgresql.org/patch/5928/

Commits

bufmgr: Remove freelist, always use clock-sweep
- 2c7894052759 19 (unreleased) landed
bufmgr: Use consistent naming of the clock-sweep algorithm
- 50e4c6ace5e6 19 (unreleased) landed