Kioxia rate the drive at up to 620,000 IOPS for random writes, and once again as with the random read testing we could get nowhere close to this figure with our 4-threaded testing. In our tests, the drive produced a write figure of 261,419 IOPS at a QD of 2. As with the random reads, we did a quick test of the drive at a QD of 32 using 8 threads and got a result of 468,633 IOPS.
4K Random Write v QD Performance
Throughout the tested queue depths, the random write performance isn’t as strong as the random read in comparison to the Kioxia drive’s competitors.