[Feature Request] 4k random read/write

[blackliner]

add 4k random I/O benchmark

[sassman]

Could you pls elaborate why 4k is a good idea?
Also, do you ask for an additional read benchmark?

[blackliner]

Hi, 4k* random IO is one of the strengths of SSD's, and benchmarking this would show their IOPS capabilities.

This would be a read and a write benchmark.
* 4k stands for a 4kB block size, maybe make this customizable, best case make it a heuristic based on the information provided from the disk (which is wrong sometimes though 🙈 )

[sassman]

@blackliner thanks for elaborating.

I have now created the PR #38 that supports the --block-size 4k argument. This PR also adds IOPS (write only) to the summary.

Feel free to test it and let me know if it does the trick for you.

[sassman]

released with v1.2.0 (but yet only write, no read measurement)