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base repository: postgresql-cfbot/postgresql
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  • 2 commits
  • 10 files changed
  • 2 contributors

Commits on Apr 30, 2025

  1. Add pg_buffercache_mark_dirty[_all]() functions for testing 

    This commit introduces two new functions for marking shared buffers as
dirty:

pg_buffercache_mark_dirty(): Marks a specific shared buffer as dirty.
pg_buffercache_mark_dirty_all(): Marks all shared buffers as dirty in a
single operation.

The pg_buffercache_mark_dirty_all() function provides an efficient
way to dirty the entire buffer pool (e.g., ~550ms vs. ~70ms for 16GB of
shared buffers), complementing pg_buffercache_mark_dirty() for more
granular control.

These functions are intended for developer testing and debugging
scenarios, enabling users to simulate various buffer pool states and
test write-back behavior. Both functions are superuser-only.

Author: Nazir Bilal Yavuz <byavuz81@gmail.com>
Reviewed-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Aidar Imamov <a.imamov@postgrespro.ru>
Reviewed-by: Joseph Koshakow <koshy44@gmail.com>
Discussion: https://postgr.es/m/CAN55FZ0h_YoSqqutxV6DES1RW8ig6wcA8CR9rJk358YRMxZFmw%40mail.gmail.com
    @nbyavuz
    nbyavuz authored and Commitfest Bot committed Apr 30, 2025
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  2. [CF 5694] v7 - Add pg_buffercache_mark_dirty[_all]() functions to the… 

    … pg_buffercache

This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/5694

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/CAN55FZ3ddSvxVDbBoNpc2JCCs0zf6g2X--zyHkr3xgUsHU51kA@mail.gmail.com
Author(s): Nazir Bilal Yavuz
    Commitfest Bot committed Apr 30, 2025
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