Re: Reducing the chunk header sizes on all memory context types

From: Julien Rouhaud <rjuju123(at)gmail(dot)com>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andres Freund <andres(at)anarazel(dot)de>, Robert Haas <robertmhaas(at)gmail(dot)com>, Yura Sokolov <y(dot)sokolov(at)postgrespro(dot)ru>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Reducing the chunk header sizes on all memory context types
Date: 2022-09-07 13:05:52
Message-ID: 20220907130552.sfjri7jublfxyyi4@jrouhaud
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Hi,

On Thu, Sep 08, 2022 at 12:29:22AM +1200, David Rowley wrote:
>
> I spent some time looking at our existing usages of
> MemoryContextContains() to satisfy myself that we'll only ever pass in
> a pointer to memory allocated by a MemoryContext and pushed this
> patch.

FYI lapwing isn't happy with this patch:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=lapwing&dt=2022-09-07%2012%3A40%3A16.

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