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The pcbs are moved between queues which are

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Unformatted text preview: s, STAT column shows current state   which state is a process in most of the Mme? 25 May 2012 Processes & Threads 10 University of Washington Process states and state transiFons running interrupt (unschedule) dispatch / schedule create terminate ready trap or exception (I/O, page fault, etc.) interrupt (I/O complete) blocked 25 May 2012 Processes & Threads You can create and destroy processes! 11 University of Washington State queues   The OS maintains a collecFon of queues that represent the state of all processes in the system   typically one queue for each state e.g., ready, waiMng, …   each PCB is queued onto a state queue according to the current state of the process it represents   as a process changes state, its PCB is unlinked from one queue, and linked onto another     25 May 2012 Once again, this is just as straigh=orward as it sounds! The PCBs are moved between queues, which are represented as linked lists. There is n...
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