call out to fio for host filesystem performance (#1275)
#3756
| Job | Run time |
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| 3m 47s | |
| 4m 3s | |
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| 5m 57s | |
| 1m 7s | |
| 5m 46s | |
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| 1m 27s | |
| 37s | |
| 1m 4s | |
| 20m 8s | |
| 59m 42s |