Jazz Disk Bench is a cross platform application for accurately measuring performance of the storage. Both sequential and random read write is supported. It also support 2-100GB stress test and external storage test.
1. Sequential Test. Reading or writing 16MB data sequentially. Reflect the speed when copy large files.
2. Random Test. Reading or writing 4 KB blocks in a random location. Random IO play an important role in performance of your device. The slower random performance, the more possibility of lag.
3. Stress Test. Writing large data(2-100GB, depends on the setting) sequentially to storage. Can test the stability of storage, and measure the native speed of disk when cache is used up.
When test external storage, please make sure the storage is writable and connection cable is stable.