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Re: EXPLAIN: showing ReadStream / prefetch stats

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Tomas Vondra <tomas@vondra.me>
Cc: Melanie Plageman <melanieplageman@gmail.com>, Lukas Fittl <lukas@fittl.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2026-04-07T21:52:31Z
Lists: pgsql-hackers 
Hi,

On 2026-04-07 23:28:32 +0200, Tomas Vondra wrote:
> Thanks. I've now pushed all parts of this patch series.

Yay.

It'd have been much harder to do the read stream improvements I worked on in
the last weeks without this patchset, and it also was much harder to
understand the performance of the index prefetching patchset ( :( ) before /
without it.

The only thing I don't like about it is not having had it in the 18 cycle,
when working on AIO.

Greetings,

Andres Freund

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. bufmgr: Return whether WaitReadBuffers() needed to wait