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Re: Direct I/O

From:	Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To:	Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc:	Andres Freund <andres(at)anarazel(dot)de>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Noah Misch <noah(at)leadboat(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Justin Pryzby <pryzby(at)telsasoft(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject:	Re: Direct I/O
Date:	2023-04-09 12:39:50
Message-ID:	CA+hUKG+OTXgS3CrRO+Gq-saQ2MrqEu=QA8ONomSPtCqYOAagpA@mail.gmail.com
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On Sun, Apr 9, 2023 at 11:25 PM Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> Didn't seem to make any difference.

Thanks for testing. I think it's COW (and I think that implies also
checksums?) that needs to be turned off, at least based on experiments
here.

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