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

Thanks for giving this a look.

On Wed, 10 Aug 2022 at 02:37, Robert Haas <robertmhaas@gmail.com> wrote:
> # We also add a restriction that block sizes for all 3 of the memory
> # allocators cannot be 1GB or larger.  We would be unable to store the
> # number of bytes that the block is offset from the chunk stored beyond this
> #1GB boundary on any block that was larger than 1GB.
>
> Earlier in the commit message, you say that allocations of 1GB or more
> are stored in dedicated blocks. But here you say that blocks can't be
> more than 1GB. Those statements seem to contradict each other. I guess
> you mean block sizes for blocks that contain chunks, or something like
> that?

I'll update that so it's more clear.

But, just to clarify here first, the 1GB restriction is just in
regards to the maxBlockSize parameter when creating a context.
Anything over set->allocChunkLimit goes on a dedicated block and there
is no 1GB size restriction on those dedicated blocks.

David