Mac users interested in Aja system test 9.0 generally download:
AJA System Test is an application that lets you accurately test your system performance. The tool emulates the writing and reading of video files to and from a hard disk and displays the results in a simple, easy to read format, by either data rate or frame rate, including graphs to show performance over time.
AJA KONA System Test is a utility to test the performance of your hard drives. It can scan both internal and external hard drives and even mounted volumes. There are different types of scans (or tests) available. The regular test, called "Disk read/write", writes a dummy file on your hard drive and it analyses how fast the file was written on itю