What Is Cpu Io Wait Time?
Contents for a Given Cpu, the I/O Wait Time Is the Time During Which That Cpu Was Idle (I. E. Didn’t Execute Any Tasks) and There Was at Least One Outstanding...
For a given CPU, the I/O wait time is the time during which that CPU was idle (i.e. didn’t execute any tasks) and there was at least one outstanding disk I/O operation requested by a task scheduled on that CPU (at the time it generated that I/O request).
What is IO wait time?
iowait is simply a form of idle time when nothing could be scheduled. The value may or may not be useful in indicating a performance problem, but it does tell the user that the system is idle and could have taken more work.
What is CPU wait time?
CPU wait is a somewhat broad and nuanced term for the amount of time that a task has to wait to access CPU resources. This term is popularly used in virtualized environments, where multiple virtual machines compete for processor resources.
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