FFM API allocation shootout

[Radosław Smogura]

Hi all,

To get full process malloc stats I would use to https://linux.die.net/man/3/mallinfo

This will not include ofc anon pages allocated by mmap, but should cover stats.

Kind regards,
Rado

> On 1 Aug 2023, at 19:10, Brian S O'Neill <bronee at gmail.com> wrote:
> 
> On 2023-08-01 09:52 AM, Maurizio Cimadamore wrote:
>>> On 01/08/2023 17:19, mail at smogura.eu wrote:
>>> * Should all memory allocations even with custom allocators be tracked - this can be a little bit error prone.
>> Custom allocators/arenas came up twice.
>> I don't think custom arenas would defeat the counting - I'd expect most custom arenas (like the PoolArena used in the benchmark) to just delegate to a "true" confined arena under the hood - so, some "tracked allocation would still occur.
> 
> I was thinking it might be useful to have a region-based arena not backed by an ordinary MemorySegment. Reporting "true" memory usage might need to be handled differently.
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