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From: Nathan Bossart <[email protected]>
To: Michael Paquier <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: [email protected]
Subject: Re: add --no-sync to pg_upgrade's calls to pg_dump and pg_dumpall
Date: Thu, 9 May 2024 14:34:25 -0500
Message-ID: <20240509193425.GA3219615@nathanxps13> (raw)
In-Reply-To: <[email protected]>
References: <20240503171348.GA1731524@nathanxps13>
	<[email protected]>
	<20240508183850.GA2824188@nathanxps13>
	<[email protected]>
	<[email protected]>

On Thu, May 09, 2024 at 09:03:56AM +0900, Michael Paquier wrote:
> +1.  Could there be an argument in favor of a backpatch?  This is a
> performance improvement, but one could also side that the addition of
> sync support in pg_dump[all] has made that a regression that we'd
> better fix because the flushes don't matter in this context.  They
> also bring costs for no gain.

I don't see a strong need to back-patch this, if for no other reason than
it seems to have gone unnoticed for 7 major versions.  Plus, based on my
admittedly limited testing, this is unlikely to provide significant
improvements.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com






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