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by pepr 3622 days ago
What should be used for I/O throughput tests instead?
3 comments
sciurus 3622 days ago
One key thing is doing active benchmarking to validate what you're testing. See an example at http://www.brendangregg.com/ActiveBenchmarking/bonnie++.html
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e1ven 3622 days ago
I usually use Bonnie++ when testing disk performance. http://www.coker.com.au/bonnie++/
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notacoward 3622 days ago
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.
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onnoonno 3622 days ago
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?
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cthalupa 3622 days ago
Bonnie++ is heavily CPU limited and should not be used for disk benchmarking
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jdc0589 3622 days ago
fio or bonnie++. I've used fio with PerfKitBenchmarker in the past for some cross cloud platform comparisons.
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