We used CrystalDiskMark 8 to test the random performance of the drive at lower queue depths (QD1 – QD8 where most of the everyday workloads occur) using 1 to 4 threads.
Random Reads
In the random read tests, all four of the tested threads displayed smooth increases in performance as the queue depth deepened. Test results at QD8 ranged from 158,548 IOPS using a single thread up to 516,842 IOPS using four threads.
Random Writes
In the 4K write tests the performance rose quickly from QD1 to QD2 for all four tested threads with the fastest rises seen in the three and four threaded tests. All four threads see the performance levelling off from QD2 onwards.