In order to measure the performance consistency of the SSDs we once again ran a 4 kB random write workload with a queue depth of 32, while taking a snapshot of the drives' performance every second. We then calculated the standard deviation of the results for the interval between 1800 and 2000 seconds. A lower standard deviation means less variation, and thus a more constant level of performance. For ease of comparison, the second chart once again shows the steady state level in the same test. Keep in mind that having highly constant relative performance, but very poor absolute performance is ultimately rather useless.
The performance here reaches new heights and in this light, the deviation of 12000 IOPS is a good result. The same would not be applicable for slower SSDs of course. Looking at the graph, you can see that the performance is consistently high, and for enterprise it is important to have reliably high performance all the time. A great quality of this SSD.