If you're shopping for an SSD, you've surely seen one of those screenshots from CrystalDiskMark with a few green squares, and the 2x4 matrix with results of doing read/write tests for the given hardware:
However, I've never seen anything similar for UNIX — at most what you get is a
dd for sequential read/write tests, which gives no indication on the IOPS parameters of the hardware in question.
Is there anything similar to CrystalDiskMark for UNIX to perform various read/write tests like 4KiB Q8T8 etc?
I searched and found the following items in OpenBSD ports, but they seem rather stale (to say the least —
randread is still hosted on SourceForge in 2020 and BYTE magazine has reportedly ceased online publication in 2013), and none of these tools make any mention of evaluating modern SSD performance, for which you probably have to have some sort of extra code to deal with the IO queues and threads or whatnot: