IOMeter is another open source synthetic benchmarking tool which is able to simulate the various loads placed on hard drive and solid state drive
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.
Under test conditions the drive produced a random 4K read speed that was a little faster than the official 95,000 IOPS at 97,078 IOPS. Unfortunately the same can’t be said for the random writes which at 56,711 were some way off the official 84,000 IOPS.