Re: postgres in swap space

On Mon, Nov 17, 2025 at 12:25 PM Marc Millas <marc(dot)millas(at)mokadb(dot)com> wrote:

> hello,
> Can someone point me to any doc describing why and how much space postgres
> uses on the swap of a debian machine ?
> it's an old postgres 10, because it is used by a product for which only
> this version is certified.
> (no comment on that, please)
>

Swap as in RAM swap space? If so, then it uses as much or as little as
Linux thinks needs to be used, given the amount of RAM.

effective_cache_size, work_mem, shared_buffers,
maintenance_work_mem, max_worker_* and max_parallel_* affect how much RAM
PG uses, in conjunction with the number of active connections (including
maintenance work).

https://postgresqlco.nf/doc/en/param/ is a handy resource.

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