On 16/12/2025 15:05, Daniil Davydov wrote:
Hi,
Commit [1] introduced a new memory context suitable for situations when we
should allocate a large amount of memory with no need to free or reallocate it.
I think that it will be useful for temp buffers :
1) We allocate them lazily and never try to free them.
2) Some users are very active in working with temporary tables, and as
a result,
they set large values for the "temp_buffers" parameter (several gigabytes).
Thus, the use case for temp buffers seems to perfectly fit for bump
memory context.
What do you think?
It makes no difference. The bump memory context is useful if you perform
a lot of small allocations, because it skips the overhead of the chunk
headers. In LocalBufferContext, we only ever make one allocation.
- Heikki
