Let's recap because you're giving out information in small pieces and I'm having difficulties following what's happening:
you have a Flask/Flask-Alchemy/PostgreSQL app
this app runs on production with gunicorn and gevent
PostgreSQL is on a digital ocean
using pgbench from your localhost you're getting 5 RPS
There a few aspects to consider:
pgbench tests PostgreSQL, not your app. It also tells you transactions per second, not requests per second.
I'm not sure testing a remote PostgreSQL from your local machine is useful at all. Your app if deployed in the same network as PostgreSQL is not going to behave the same way anway. You should probably test it from the server that hosts the app
Are you running pgbench correctly? Benchmarking can introduce methodology errors. How many connections are you opening? Can you provide the command line you run the test with?
What happens to said PostgreSQL's memory when benchmarked?
Finally, have you tried to actually load test the production app? Or at least a copy of it. With tools like wrk for example.
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I measure on localhost without any pgbouncer, using pgbench, so no gevent and pgbouncer.
Let's recap because you're giving out information in small pieces and I'm having difficulties following what's happening:
pgbenchfrom your localhost you're getting 5 RPSThere a few aspects to consider:
pgbenchtests PostgreSQL, not your app. It also tells you transactions per second, not requests per second.pgbenchcorrectly? Benchmarking can introduce methodology errors. How many connections are you opening? Can you provide the command line you run the test with?Finally, have you tried to actually load test the production app? Or at least a copy of it. With tools like wrk for example.