If it takes a lot of time to read or write data to your hard drive, there could well be a problem with the drive. If this is the case, you’ll find out by benchmarking your drive to measure its performance. ATTO Disk Benchmark is a software tool designed to help you measure the performance of your system, by running a series of tests to determine hard drive speed. While most benchmark utilities are extremely complicated applications with lots of features, ATTO Disk Benchmark is more user-friendly with a simple interface and a comprehensive help menu with details on every feature of the program. To run a test you just pick the drive to check, and configure some options relating to whether you want to use force write access and direct I/O. Close all open applications and click Start, and the tool will measure your hard drive’s performance.