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From: Nico Williams <[email protected]>
To: Pierre Barre <[email protected]>
Cc: Seref Arikan <[email protected]>
Cc: [email protected]
Subject: Re: PostgreSQL on S3-backed Block Storage with Near-Local Performance
Date: Thu, 24 Jul 2025 14:44:46 -0500
Message-ID: <aIKNLuEis1DQEOGv@ubby> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<CAG1bHGOzCNtDeW0W8gRO7mpW=t7BqWh-iz4kX5VRCPgt_6Tr6Q@mail.gmail.com>
	<[email protected]>

On Fri, Jul 18, 2025 at 12:57:39PM +0200, Pierre Barre wrote:
> - Postgres configured accordingly memory-wise as well as with
>   synchronous_commit = off, wal_init_zero = off and wal_recycle = off.

Bingo.  That's why it's fast (synchronous_commit = off).  It's also why
it's not safe _unless_ you have a local, fast, persistent ZIL device
(which I assume you don't).

Nico
-- 






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