There are two proven software tools commonly used for IO benchmarks – Iometer (http://www.iometer.org/) for Windows and FIO (http://freecode.com/projects/fio) for Linux OS.
What is FIO Visualizer? It’s a GUI for the FIO. It parses console output in real-time, displays visual details for IOPS, bandwidth and latency of each device’s workload. This is a valuable tool for benchmarking NVMe SSDs.
Learn all the details and how to get started here.
— written by Andrey Kudryavtsev, Solutions Architect, Intel