> On 05/02/2023 23:17 CET Richard Brockie <richard.brockie@xxxxxxxxx> 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