Re: Slow down dev database transactions/second for testing?

> On 05/02/2023 23:17 CET Richard Brockie <richard(dot)brockie(at)gmail(dot)com> wrote:
>
> I maintain a Django webapp that uses postgresql and can create inefficient
> queries if I'm not careful. I'm looking for ways to mimic a congested db
> server in development to expose these queries.

pgbench is what your looking for: https://www.postgresql.org/docs/current/pgbench.html

You can run custom statements with the --file option. Get the statements that
Django generates and let pgbench run those to analyze the bottlenecks. Or let
pgbench create load for some time (see option --time) while you debug your
Django app.

> The configuration of postgresql is complicated - is there a simple method by
> which I could, for example limit the number of transactions/second to a
> certain level by adjusting postgresql.conf?

No. Postgres will execute as fast as possible with the available resources.

--
Erik