Re: another autovacuum scheduling thread

From: shihao zhong <zhong950419(at)gmail(dot)com>
To: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Cc: Greg Burd <greg(at)burd(dot)me>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Sami Imseih <samimseih(at)gmail(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>, Jim Nasby <jnasby(at)upgrade(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Robert Treat <rob(at)xzilla(dot)net>, Jeremy Schneider <schneider(at)ardentperf(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: another autovacuum scheduling thread
Date: 2026-09-02 01:19:23
Message-ID: CAGRkXqSnGfeZNB-k4bwg=j88r83yz=AJ0aKAGdYbzczMeDwexA@mail.gmail.com
Views: Whole Thread | Raw Message | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Hi,
Thanks for committing the fix, Nathan.

> Can we add some tests for HEAD for the autovacuum scoring feature? I
> understand it's a bit hard to get the tests to run deterministically,
> but if it's worth it, I can give it a try.

I already had one written, so let me share it to save you the effort.
To keep it deterministic and fast, it fakes an old relfrozenxid and
relminmxid with a catalog UPDATE instead of consuming transactions.

Patch attached, on top of your commit.

Thanks,
Shihao

Attachment Content-Type Size
0001-Add-a-test-for-autovacuum-freeze-score-scaling.patch application/octet-stream 4.7 KB

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message shihao zhong 2026-09-02 01:20:24 Re: [PATCH] Fix autovacuum freeze bug where weight can lower a table's freeze score
Previous Message Fujii Masao 2026-09-02 01:14:32 Re: [PATCH] Fix pg_dump emitting OVERRIDING SYSTEM VALUE for tables with dropped identity columns