Why did I started writing this tool ? pgSimload version alpha by Patrick pgSimload is a tool written in Go. The very first version was a POC written by my colleague Patrick McLaughlin. He wanted to show us (as the Solution Architects Team, at my job), that something else than Apache JMeter can be used to create a loop of SELECT 1; to check if a PostgreSQL cluster (mostly in HA) is responding or not, when we do demos.