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What is %IOWAIT of CPU states in TOP command output

865767May 31 2011 — edited Jun 8 2011

What is "% iowait" in CPU States in Solaris? See below output it shows 11.2 % of CPU was used for IO.
Is CPU used in IO as well? If yes how?
****************************************************************

last pid: 15598; load averages: 3.66, 3.39, 3.07 18:33:27
292 processes: 283 sleeping, 1 running, 5 zombie, 3 on cpu
CPU states: 17.9% idle, 54.8% user, 16.1% kernel, 11.2% iowait, 0.0% swap
Memory: 16G real, 8029M free, 5425M swap in use, 19G swap free

PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND

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Locked on Jul 6 2011

Added on May 31 2011

#oracle-solaris, #solaris-10

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