Re: sb_alloc: a new memory allocator for PostgreSQL

On Tue, May 6, 2014 at 2:04 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> I also didn't find anything that looked like our
> memory context paradigm, and in particular the ability to cheaply
> reset a context, in any other allocator.

You probably knew this but just in case the term for this strategy is
called a "ripcord allocator". I believe GCC had one, not sure if it
still uses it. I doubt any existing ones are especially helpful though
compared to looking at regular allocators and seeing how to integrate
them.

I assume you're also aware of lock-free data structures and the like.
A memory allocator seems like something that needs to be super aware
of causing concurrency bottlenecks since it has no idea where it'll be
used.

--
greg