DiskMark - harddisk benchmark

Test the performance of your flash (pen/usb), solid state, hard disk drives in just 2 minutes.

DiskMark performs real world speed tests and shows:
+ Sequential read/write speeds which is the performance you see when copying large files.
+ Random read/write speeds which is the performance you experience when opening or using programs that read and write a lot of files to disk.

DiskMark is extremely simple to use and invaluable if you work with any USB drives (flash or external harddisks). It also exhausts I/O buffer caches, resulting in highly accurate results which you can expect to see in real life. A history of benchmarks lets you quickly compare your own drives.