Horton

Re: like pg_shmem_allocations, but fine-grained for DSM registry ?

Nathan Bossart <nathandbossart@gmail.com>

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From: Nathan Bossart <nathandbossart@gmail.com>
To: Florents Tselai <florents.tselai@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-07-08T15:21:22Z
Lists: pgsql-hackers 
On Tue, Jul 08, 2025 at 07:17:54PM +0800, Florents Tselai wrote:
> I can't see how it's possible to get the actual size for the dsa and dsh case,
> without attaching and then using, dsa_get_total_size on the attached dsa.
> And I don't think we wanna do that.
> 
> Instead maybe we can just report NULL for the dsa and dsh cases? 

Yeah, I'm not sure what else we can do about that without a bunch of
refactoring work on the DSA/dshash side, and it's probably not worth the
effort, anyway.

-- 
nathan

Commits

  1. Introduce pg_dsm_registry_allocations view.