public inbox for [email protected]
help / color / mirror / Atom feedFrom: Daniil Davydov <[email protected]>
To: Sami Imseih <[email protected]>
Cc: Masahiko Sawada <[email protected]>
Cc: Maxim Orlov <[email protected]>
Cc: Postgres hackers <[email protected]>
Subject: Re: POC: Parallel processing of indexes in autovacuum
Date: Sat, 3 May 2025 15:17:49 +0700
Message-ID: <CAJDiXgjjGNExq79h83wHwBnp5jGxnkSUnMtGHZVUHm4wgV=Qsg@mail.gmail.com> (raw)
In-Reply-To: <CAA5RZ0vanNmUDoTykY618+rzHmthQUbsUsWJcr9R1T9E2FH9sQ@mail.gmail.com>
References: <CACG=ezZOrNsuLoETLD1gAswZMuH2nGGq7Ogcc0QOE5hhWaw=cw@mail.gmail.com>
<CAD21AoCdx5ZNS_cO7bYz1Zfb+Kw1kuJV2wtewrz7T1pPpjcWGw@mail.gmail.com>
<CAJDiXgi6ZQOoSEqj9RyZMEh+HHBtmW0+PHD85UNPtKch8ubvdg@mail.gmail.com>
<CAD21AoBcoA-i-pJ_=y+jg14R8_QaJA1iwktCnu5i-C=yXDFPdA@mail.gmail.com>
<CAA5RZ0vanNmUDoTykY618+rzHmthQUbsUsWJcr9R1T9E2FH9sQ@mail.gmail.com>
On Sat, May 3, 2025 at 5:59 AM Sami Imseih <[email protected]> wrote:
>
> > I think it would more make
> > sense to maintain the existing autovacuum_max_workers parameter while
> > introducing a new parameter that would either control the maximum
> > number of parallel vacuum workers per autovacuum worker or set a
> > system-wide cap on the total number of parallel vacuum workers.
>
> +1, and would it make sense for parallel workers to come from
> max_parallel_maintenance_workers? This is capped by
> max_parallel_workers and max_worker_processes, so increasing
> the defaults for all 3 will be needed as well.
I may be wrong, but the `max_parallel_maintenance_workers` parameter
is only used for commands that are explicitly run by the user. We
already have `autovacuum_max_workers` and I think that code will be
more consistent, if we adapt this particular parameter (perhaps with
the addition of a new one, as I wrote in the previous letter).
--
Best regards,
Daniil Davydov
view thread (112+ messages) latest in thread
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected], [email protected], [email protected], [email protected], [email protected]
Subject: Re: POC: Parallel processing of indexes in autovacuum
In-Reply-To: <CAJDiXgjjGNExq79h83wHwBnp5jGxnkSUnMtGHZVUHm4wgV=Qsg@mail.gmail.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox