ATTO Disk Benchmark is a freeware application designed to measure your storage systems performance with transfer sizes and test lengths for reads and write speeds.
Several options are available to customize your performance measurement including queue depth, overlapped I/O and even a comparison mode with the option to run continuously. You can test any manufacturers RAID controllers, storage controllers, host adapters, hard drives, and SSD drives.
ATTO Disk Benchmark Features:
Transfer sizes from 512KB to 8MB
Transfer lengths from 64KB to 2GB
Support for overlapped I/O
Supports a variety of queue depths
I/O comparisons with various test patterns
Timed mode allows continuous testing
Non-destructive performance measurement on formatted drives