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by e1ven 3630 days ago
I usually use Bonnie++ when testing disk performance. http://www.coker.com.au/bonnie++/
2 comments

The only thing worse than dd is bonnie++. Please, folks, use fio, or at least iozone, with multiple threads and/or a queue depth greater than one.
Are you sure? Bonnie++ has byte-wise and block-wise tests. Yes, the byte-wise tests are CPU bound (as expected), but I have not seen that for the block-wise tests on any machine so far?
Bonnie++ is heavily CPU limited and should not be used for disk benchmarking