ioping: add page

pages/common/ioping.md

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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`