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ioping

monitor I/O latency in real time

Show disk I/O latency using the default values and the current directory

ioping .

Measure latency on /tmp using 10 requests of 1 megabyte each.

ioping -c 10 -s 1M /tmp

Measure disk seek rate on /dev/sda.

ioping -R /dev/sda

Measure disk sequential speed on /dev/sda.

ioping -RL /dev/sda