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  1. fio --ioengine=libaio --direct=1 --rw=write --numjobs=1 --bs=16k --iodepth=1 --size=20M --name=write [w=320KiB/s][w=20 IOPS] (sometimes drops to about 5 iops)
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  3. fio --ioengine=libaio --direct=1 --rw=write --numjobs=1 --bs=16k --iodepth=1 --size=20M --name=/dev/vdb1 [w=640KiB/s][w=40 IOPS]
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  5. fio --ioengine=libaio --direct=1 --rw=write --numjobs=1 --bs=4M --iodepth=16 --size=20G --name=foo [w=92.1MiB/s][w=23 IOPS]
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  7. fio --ioengine=libaio --direct=1 --bs=16k --iodepth=128 --rw=randwrite --norandommap --size=20G --numjobs=1 --runtime=300 --time_based --name=io128 [w=15.4MiB/s][w=983 IOPS] (there iops increase from about 20 to about 1600)
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  9. fio --ioengine=libaio --direct=1 --bs=16k --iodepth=128 --rw=randread --norandommap --size=20G --numjobs=1 --runtime=60 --time_based --name=io128 [r=225MiB/s][r=14.4k IOPS]
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