Horton

Re: MultiXact\SLRU buffers configuration

x4mmm@yandex-team.ru

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From: "Andrey M. Borodin" <x4mmm@yandex-team.ru>
To: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: vignesh C <vignesh21@gmail.com>, Andrew Borodin <amborodin86@gmail.com>, i.lazarev@postgrespro.ru, Yura Sokolov <y.sokolov@postgrespro.ru>, Andres Freund <andres@anarazel.de>, Thomas Munro <thomas.munro@gmail.com>, Gilles Darold <gilles@darold.net>, Tomas Vondra <tomas.vondra@enterprisedb.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, Alexander Korotkov <aekorotkov@gmail.com>, Anastasia Lubennikova <a.lubennikova@postgrespro.ru>, Daniel Gustafsson <daniel@yesql.se>, Kyotaro Horiguchi <horikyota.ntt@gmail.com>, pgsql-hackers mailing list <pgsql-hackers@postgresql.org>, Michael Paquier <michael@paquier.xyz>
Date: 2024-08-19T07:35:53Z
Lists: pgsql-hackers 

> On 5 Jul 2024, at 23:18, Andrey M. Borodin <x4mmm@yandex-team.ru> wrote:
> 
> Alvaro, please find attached the test.
> I’ve addressed some Michael’s comments in a nearby thread: removed extra load, made injection point names lowercase, fixed some grammar issues.

I’ve made several runs on Github to test stability [0, 1, 2, 4]. CI seems to be stable.

Thanks!


Best regards, Andrey Borodin.

[0] https://github.com/x4m/postgres_g/commit/c9c362679f244
[1] https://github.com/x4m/postgres_g/commit/9d7e43cc1
[2] https://github.com/x4m/postgres_g/commit/18cf186617
[3] https://github.com/x4m/postgres_g/commit/4fbce73997

Commits

  1. Rework new SLRU test with injection points

  2. injection_point: Add injection_points.stats

  3. injection_points: Add initialization of shmem state when loading module

  4. Add injection-point test for new multixact CV usage

  5. Use conditional variable to wait for next MultiXact offset

  6. Improve performance of subsystems on top of SLRU

  7. Adjust VACUUM hastup LP_REDIRECT comments.

  8. Test replay of regression tests, attempt II.