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

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, 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 04:56:15
Message-ID: 3566065.1662526575@sss.pgh.pa.us
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David Rowley <dgrowleyml(at)gmail(dot)com> writes:
> It seems a pretty large portion of allocation request sizes are
> power-of-2 sized and use AllocSet.

No surprise there, we've been programming with aset.c's behavior
in mind for ~20 years ...

regards, tom lane

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