Re: [PING] fallocate() causes btrfs to never compress postgresql files

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, Jakub Wartak <jakub(dot)wartak(at)enterprisedb(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Dimitrios Apostolou <jimis(at)gmx(dot)net>, Magnus Hagander <magnus(at)hagander(dot)net>, Tomas Vondra <tomas(at)vondra(dot)me>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Andres Freund <andres(at)anarazel(dot)de>, Melanie Plageman <melanieplageman(at)gmail(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, David Rowley <dgrowleyml(at)gmail(dot)com>
Subject: Re: [PING] fallocate() causes btrfs to never compress postgresql files
Date: 2026-02-06 23:09:22
Message-ID: CA+hUKG+_Hbt=c0bcHLBr_7T+grgjJv=3fzNW-ErTLcPMHJ_VxA@mail.gmail.com
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On Sat, Feb 7, 2026 at 11:19 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Thomas Munro <thomas(dot)munro(at)gmail(dot)com> writes:
> > On Sat, Feb 7, 2026 at 9:31 AM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> >> Perhaps, but since we're getting pretty hard up against the release
> >> freeze deadline, I think the thing to do for today is just to update
> >> .abi-compliance-history. We know that way works.
>
> > So it seems I need to do the attached for 18, and the same again for
> > 17 and 16. Look about right?
>
> Right.

Done, thanks. Let's see what crake thinks... with any luck, it'll be
green as the code freeze deadline whistles past...

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