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I/O is an acronym for input/output, which refers to the mechanism or process for the transfer of information between one system or component and another.

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I'm new to programming & Linux. After I finished my programs(do some IO), I found iowait is very high(~65%) while the throughput(~5M/s read + ~5M/s write) and IOPS(50~100 QPS) are low. iostat -xm 1 …
asked Aug 28 '17 by songhir