Thread States 5 durumda bulunabilirler: init: The thread is being created ready: The thread is waiting to be assigned to a CPU running: The thread's i
{"Image DocumentName": "Thread States interrupt quantum expired init terminated admitted", "Image ImageDescription": "5 durumda bulunabilirler: init: The thread is being created. ready: The thread is waiting to be assigned to a CPU. running: The thread\u2019s instructions are being executed. waiting: The thread is waiting for some event to occur. terminated: The thread has finished execution. interrupt quantum expired. init. terminated. Newly created threads start there live in init state. After appropriate data structures are initialized (thread control block - TCB), the thread\u2019s state is changed to ready . From ready state, a thread may get selected for execution and its state is changed by the scheduler to running . For a given system, there is exactly one thread in running state per processing unit (note that a CPU might have multiple processing units - multicore/hyperthreading). When the running thread issues an I/O request, it might block and change its state into waiting . Alternatively, a running thread\u2019s time slice (quantum) may expire, in which case the thread\u2019s state is changed back to ready . A waiting thread can move into ready state once the reason for its blocking disappears (I.e.; the I/O operation completes). Finally, a running thread might execute its last instruction - in which case its state changes to terminated . Operating systems often use heuristics to determine which one of the threads in ready state to select for execution. The Windows OS uses a priority-based scheme and maintains 32 ready queues of different priorities. admitted. scheduler dispatch. exit. ready. running. waiting. I/O or event completion. waiting for. I/O or event.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}