IOMeter is another open source synthetic benchmarking tool which is able to simulate the various loads placed on hard drive and solid state drive technology.
We test with both random read and write 4k tests, as shown above. There are many ways to measure the IOPS performance of a Solid State Drive, so our results will sometimes differ from manufacturer’s quoted ratings. We do test all drives in exactly the same way, so the results are directly comparable.
At shallow queue depths the random read IOPS performance is excellent, rather what you would expect from a read orientated drive. The nice surprise is just how good the random write IOPS performance is. Both figures put the drive firmly at the top of the graph as the fastest 1TB class 2.5in drive we've tested.