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From: Andres Freund <[email protected]>
To: Alvaro Herrera <[email protected]>
Cc: [email protected]
Cc: Jaime Casanova <[email protected]>
Subject: Re: LogwrtResult contended spinlock
Date: Mon, 21 Mar 2022 18:11:18 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>

Hi,

On 2021-11-22 18:56:43 -0300, Alvaro Herrera wrote:
> There was an earlier comment by Andres that asyncXactLSN should also be
> atomic, to avoid an ugly spinlock interaction with the new atomic-based
> logwrtResult.  The 0002 here is an attempt at doing that; I found that
> it also needed to change WalWriterSleeping to use atomics, to avoid
> XLogSetAsyncXactLSN having to grab the spinlock for that.

This patch currently doesn't apply: http://cfbot.cputube.org/patch_37_2716.log

Are you aiming this for v15? Otherwise I'd like to move the entry to the next
CF. Marked as waiting-on-author.

Greetings,

Andres Freund

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