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 QD1-QD8 random read tests, the drive produced smooth increases in performance as the queue depth deepened without any noticeable dramas. At QD1, the drive speed ranges from 20,795 IOPS (85.22MB/s) using a single thread up to 98,332 IOPS (407.77MB/s) using four threads. By the end of the test run at QD8, the drive reached 179,701 IOPS (736.05MB/s) using a single thread, while the four-threaded test reached 505,266 IOPS (2,069MB/s).
Random Write
In the 4K write tests, the performance rose quickly from QD1 to QD2 for all four tested threads, with the fastest rise seen in the three and four-threaded tests. The performance began to plateau out at QD2 using two and three threads, but using single and four threads, this plateau didn't happen until QD4
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