In this case, some IO which another task has been accounted for will not be happening. This may occur when the task truncates some irty pagecache. kB_ccwr/s – Number of kilobytes whose writing to disk has been cancelled by the task.
kB_wr/s – Number of kilobytes the task has caused, or shall cause to be written to disk per second.kB_rd/s – Number of kilobytes the task has caused to be read from disk per second.PID – The identification number of the task being monitored.Sample outputs (from mysqld server w/ PID # 7114): To see I/O statistics (kernels 2.6.20 and later only) for nfsd4 process run by PID # 13212, enter:
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