CrystalDiskMark

CrystalDiskMark is a small HDD benchmark utility for your hard drive that enable you to rapidly measure sequential and random read/write speeds.

Free Open Source Windows

Blackmagic Disk Speed Test

Disk Speed Test is an easy to use tool to quickly measure and certify your disk performance for working with high quality video! Simply click the start button and Disk Speed Test will write test your disk using large blocks of data, and...

Free Mac OS X

Iometer

As the Iometer Users Guide says, Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. It was originally developed by the...

Free Open Source Windows Linux

Diskspd

A feature-rich and versatile storage testing tool, Diskspd (version 2.0.17) combines robust and granular IO workload definition with flexible runtime and output options...

Free Open Source Windows

Load DynamiX

2U load generation appliance, also runs under a VM, A leading commercial performance validation product for networked storage infrastructure. We help companies reduce...

Commercial Windows Self-Hosted

fio

Generate I/O for benchmarking, stress testing, verification or workload reproduction purposes.

Free Open Source Mac OS X Windows Linux BSD

SQLIO

SQLIO is a tool provided by Microsoft which can also be used to determine the I/O capacity of a given configuration.

Free Windows

Cold-cache Sequential I/O Benchmark

CCSIO Benchmark measures maximum sequential read/write speed that is realistically achievable for a given file system location, including local drives, remote network...

Free Windows

IOzone

IOzone is a filesystem benchmark tool. The benchmark generates and measures a variety of file operations. Iozone is useful for performing a broad filesystem analysis...

Free Open Source Mac OS X Windows Linux BSD