Re: slab allocator performance issues - Mailing list pgsql-hackers

From Ranier Vilela
Subject Re: slab allocator performance issues
Date
Msg-id CAEudQAqNVG6G3ALb2Bx9qpK0aSMxv4z7aWPJET5A-Z6r51_9gA@mail.gmail.com
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In response to Re: slab allocator performance issues  (David Rowley <dgrowleyml@gmail.com>)
List pgsql-hackers
Em ter., 20 de jul. de 2021 às 11:15, David Rowley <dgrowleyml@gmail.com> escreveu:
On Tue, 20 Jul 2021 at 10:04, Ranier Vilela <ranier.vf@gmail.com> wrote:
> Perhaps you would agree with me that in the most absolute of times, malloc will not fail.
> So it makes more sense to test:
> if (ret != NULL)
> than
> if (ret == NULL)

I think it'd be better to use unlikely() for that.
Sure, it can be, but in this case, there is no way to reduce the scope.

regards,
Ranier Vilela

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