Disclaimer: I'm relatively new to Postgres.
On my production EC2 DB server, I'm experiencing high CPU usage on two of the five CPUs, ultimately resulting in latency for users of my application.
I've noticed that Postgres appears to only run two processes by default. How might I increased the default number of Postgres processes and thus allow for better spreading out of the load?
I'm using Rails/ActiveRecord on the application server if it makes a difference.