Getting Started with pgbench and Distributed SQL on GKE

The text discusses the use of `pgbench`, a simple program for running benchmark tests on PostgreSQL, to compare its performance with that of YugabyteDB, an open-source, high-performance distributed SQL database. The authors have forked `pgbench` and renamed it to `ysql_bench` to run against YugabyteDB, which is PostgreSQL wire compatible. The tutorial guides the reader through setting up a Kubernetes cluster on Google Cloud Platform (GCP) and deploying YugabyteDB using Helm charts. It then walks through initializing and running `ysql_bench` against the YugabyteDB cluster, providing an overview of its usage and configuration options. The authors highlight that while `pgbench` is designed for single-node PostgreSQL deployments, it can still be used to benchmark distributed SQL databases like YugabyteDB, offering valuable insights into cluster sizing, deployment architecture, and resource allocation.