Re: hint in determining effective_io_concurrency - Mailing list pgsql-performance

On Thu, Apr 22, 2021 at 10:15 PM Justin Pryzby <pryzby@telsasoft.com> wrote:
> Note that the interpretation of this GUC changed in v13.
> https://www.postgresql.org/docs/13/release-13.html
> |Change the way non-default effective_io_concurrency values affect concurrency (Thomas Munro)
> |Previously, this value was adjusted before setting the number of concurrent requests. The value is now used
directly.Conversion of old values to new ones can be done using:
 
> |SELECT round(sum(OLDVALUE / n::float)) AS newvalue FROM generate_series(1, OLDVALUE) s(n);
>

Yeah, I know, thanks.
However, I'm still curious about which tools to use to get info about
the storage queue/concurrency.

Luca