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 23,510 IOPS (96.29MB/s) using a single thread up to 107,009 IOPS (438.30MB/s) using four threads. At a QD of 8, the single-thread performance had increased to 179,131 IOPS (733.71MB/s) while the four-threaded test reached 509,282 IOPS (2,086MB/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. Using three and four threads, between QDs 2 and 4, the rate of increase slowed, and between QD4 and 8, the performance began to plateau. Using one and two threads, the performance began to level off after QD2.
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