Em ter., 4 de out. de 2022 às 05:36, David Rowley <dgrowleyml@gmail.com> escreveu:
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.
There is zero intention to commit this. It's just an experiment I did.
As it is in the patch, it is possible to save the context pointer outside the header chunk.
Making it possible to retrieve it in MemoryContextContains.
