iostat
iostat -
Interactively report I/O and CPU statistics.
iostat(1) iostat(1) NAME iostat - report I/O statistics SYNOPSIS iostat [-t] [interval [count]] DESCRIPTION iostat iteratively reports I/O statistics for each active disk on the system. Disk data is arranged in a four-column format: Column Heading Interpretation device Device name bps Kilobytes transferred per second sps Number of seeks per second msps Milliseconds per average seek If two or more disks are present, data is presented on successive lines for each disk. To compute this information, seeks, data transfer completions, and the number of words transferred are counted for each ...
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