信息系统状态过程图_操作系统中的过程状态图

待我称王封你为后i 2023-03-05 15:50 55阅读 0赞

信息系统状态过程图

The **Process State diagram** illustrates the States in which a process can be in, and it also defines the flow in which a particular state can be achieved by the Process. Let us first take a look at the **Process State diagram**, which is as follows:

**流程状态图**说明了流程可以进入的状态，并且还定义了流程可以实现特定状态的流程。 首先让我们看一下**流程状态图** ，如下所示：

![process state diagram][]

*  When a new process is initiated, it is said to be in the new state, which means that the process is under creation.
    
    启动新流程时，据说它处于新状态，这意味着该流程正在创建中。
 *  When the process is ready for execution, the long term scheduler transfers it from the new state into the ready state. The process has now entered into the main memory of the system.
    
    当流程准备好执行时，长期调度程序会将其从新状态转移到就绪状态。 现在，该过程已进入系统的主存储器。
 *  In the ready state, the processes are scheduled by the short term schedulers, and a queue is maintained in which the processes are serially sent to the processor.
    
    在就绪状态下，进程由短期调度程序进行调度，并维护一个队列，在该队列中将进程串行发送到处理器。
 *  After maintaining the queue, the dispatcher then transfers the processes to the running state one by one as per the queue sequence.
    
    维护队列后，调度程序将按照队列顺序将进程一一转移到运行状态。
 *  While being in the running state, the process utilizes the processor. But if there is a requirement of any input or output devices in between the processing, then the process is shifted to the waiting state.
    
    在处于运行状态时，该过程利用处理器。 但是，如果在处理之间需要任何输入或输出设备，则处理将转移到等待状态。
 *  When the process is done with the input-output services, then instead of directly going back to the running state, it is again sent to the ready state and is then is scheduled again for going into the running state.
    
    当使用输入/输出服务完成该过程时，它不再直接返回运行状态，而是再次发送到就绪状态，然后再次计划进入运行状态。
 *  This process keeps continuing and when the process completes its execution, it goes into the termination state, which means it exits from the main memory of the system.
    
    该过程将继续进行，并且当该过程完成执行时，它将进入终止状态，这意味着它将从系统的主内存中退出。
 *  The black arrow in the diagram, which goes from the running to waiting for state exists only if the operating system follows preemption of processes, i.e. a current running process can be interrupted in between and can be replaced by some other process with high priority. If the OS does not allow preemption, then this switch is not allowed.
    
    图中的黑色箭头(从运行状态变为等待状态)仅在操作系统遵循进程抢占条件时存在，即，当前的运行进程可以在它们之间被中断，并可以由其他具有高优先级的进程替换。 如果操作系统不允许抢占，则不允许此开关。

> 翻译自: [https://www.includehelp.com/operating-systems/process-state-diagram.aspx][https_www.includehelp.com_operating-systems_process-state-diagram.aspx]

信息系统状态过程图

[process state diagram]: https://www.includehelp.com/operating-systems/images/process-state-diagram.jpg
[https_www.includehelp.com_operating-systems_process-state-diagram.aspx]: https://www.includehelp.com/operating-systems/process-state-diagram.aspx