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Process and Thread State Diagrams

Process and Thread State Diagrams. Basic Transitions. # ready queues may be >1. Java Thread States. waiting. Ready/Running. new. Terminated. UNIX Process States. C. A=system call or interrupt B=interrupt/return C=RAM available D=no RAM. New. D. Pre-empted. Ready in memory.

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Process and Thread State Diagrams

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  1. Process and Thread State Diagrams

  2. Basic Transitions # ready queues may be >1

  3. Java Thread States waiting Ready/Running new Terminated

  4. UNIX Process States C A=system call or interrupt B=interrupt/return C=RAM available D=no RAM New D Pre-empted Readyinmemory swap in/out ReadySwapped int/sig A re-sched UserRunning Waitinginmemory KernelRunning WaitingSwapped B Terminated Blocking I/O or Wait requested

  5. Windows Thread States Runnable CPU scheduled New Ready Running preempted Blockrequested Blockreleased Waiting Terminated Page/stack wait Not runnable

  6. Linux Process/Thread States New Ready Running Terminated H/W Any signalor event Uninterruptible Interruptible Signal Stopped* ULT=kernel-level process * Requires action from another process

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