bonnie++ for Mac

Bonnie++ is a command-line benchmarking tool for evaluating file system and hard drive performance. By simulating actual file read and write operations, it helps users understand how storage devices perform in scenarios such as handling large numbers of small files and sequential reads and writes. If you are setting up or tuning a server, choosing a hard drive, or want to compare performance differences between file systems, it can provide valuable reference data. As a long-established tool, it enjoys a solid reputation among system administrators and in the storage testing field, and is suitable for technical users who need to investigate storage performance. It is run primarily from the command line, and interpreting its output requires a certain level of expertise.