pquery is an open-source (GPLv2 licensed) multi-threaded test program created to stress test the MySQL server (in any flavor), either randomly or sequentially, for QA purposes. Given it's modern C++ core, it is able to maximise the physical server's queries per second (qps) rate. pquery is an acronym for 'parallel query'. Prebuilt pquery binaries (with statically linked client libraries) for Percona Server, MySQL Server, MariaDB, and WebScaleSQL are available as part of the pquery framework. Please note that v2.0 accepts the same CLI options as v1.0 does, for backwards compatibility. And, alike to v1.0, it can handle a single node setup in that mode. The recommended way to pass all options and params to pquery v2.0 is using a configuration file.