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From: Jeff Davis <pgsql@j-davis.com>
To: Melanie Plageman <melanieplageman@gmail.com>
To: Nazir Bilal Yavuz <byavuz81@gmail.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Andres Freund <andres@anarazel.de>
Subject: Re: Checkpointer write combining
Date: Tue, 09 Sep 2025 18:28:55 -0700
Message-ID: <b4ad535a72fc02ea43076cf525e4dbaa72b00d5b.camel@j-davis.com> (raw)
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	<CAAKRu_bz=t1FGXhUytPx9SC648-ozb-UxBps4zWUmS2XMg4Z4A@mail.gmail.com>

On Tue, 2025-09-09 at 13:55 -0400, Melanie Plageman wrote:
> On Tue, Sep 9, 2025 at 11:16 AM Melanie Plageman
> <melanieplageman@gmail.com> wrote:
> > 
> > One more fix and a bit more cleanup in attached v4.
> 
> Okay one more version: I updated the thread on eager flushing the
> bulkwrite ring [1], and some updates were needed here.

v5-0005 comments:

  * Please update the comment above the code change.
  * The last paragraph in the commit message has a typo: "potentially
update the local copy of min recovery point, when xlog inserts are
*not* allowed", right?
  * Shouldn't the code be consistent between XLogNeedsFlush() and
XLogFlush()? The latter only checks for !XLogInsertAllowed(), whereas
the former also checks for RecoveryInProgress().

I'm still not sure I understand the problem situation this is fixing,
but that's being discussed in another thread.

Regards,
	Jeff Davis






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