Re: Reducing the chunk header sizes on all memory context types - Mailing list pgsql-hackers

From David Rowley
Subject Re: Reducing the chunk header sizes on all memory context types
Date
Msg-id CAApHDvrxyptOugW0aR8eF9iD+kzoFyKtoMTyhOHUyctKc9kLdw@mail.gmail.com
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In response to Re: Reducing the chunk header sizes on all memory context types  (Ranier Vilela <ranier.vf@gmail.com>)
Responses Re: Reducing the chunk header sizes on all memory context types  (Ranier Vilela <ranier.vf@gmail.com>)
List pgsql-hackers
On Tue, 4 Oct 2022 at 13:35, Ranier Vilela <ranier.vf@gmail.com> wrote:
> Revisiting my work on reducing memory consumption, I found this patch left out.
> I'm not sure I can help.
> But basically I was able to write and read the block size, in the chunk.
> Could it be the case of writing and reading the context pointer in the same way?
> Sure this leads to some performance loss, but would it make it possible to get the context pointer from the chunk?
> In other words, would it be possible to save the context pointer and compare it later in MemoryContextContains?

I'm not really sure I understand the intention of the patch. The
header size for all our memory contexts was already reduced in
c6e0fe1f2.  The patch you sent seems to pre-date that commit.

David



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