Why the process of sleep command is always in sleep status ? Sleep status means waiting for I/O right ?

  • sleep status could be waiting for anything – Skaperen Apr 15 '15 at 11:57
  • It is my understanding that while a thread may sleep while a DMA request is pending, there are other reasons for a process to go into a sleep state. – Frank Thomas Apr 15 '15 at 11:58

It would be misleading if a call to to the sleep (or associated) function were to report a process state other than sleep. The sleep command calls the sleep (or associated, such as nanosleep) function, and as such, is in the same state as any other sleeping process.

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