Description: 进程调度算法:采用最高优先数优先的调度算法,即把处理机分配给优先数最高的进程。 每个进程由一个进程控制块(PCB)表示。进程控制块可以包含如下信息:进程名、优先数、需要运行的时间、已占用的CPU时间、进程状态等等。 进程的优先数及所需要运行的时间可以事先人为地指定(也可由随机数产生)。 进程的运行时间以时间片为单位进行计算。 每个进程的状态可以是就绪W(Wait),运行R(Run),或完成F(Finish)三种状态之一。-process Scheduling Algorithm : The highest priority of several priority scheduling algorithm, which is allocated to the processor the highest priority in the process. Every process from a process control block (PCB) said. Process control block may contain the following information : process, and priority number, the need to run time, has taken the CPU time, the process of the state and so on. Several priorities for the process of what needs to run and the time prior to artificially designated (also be random number generator). The process of running time to time-unit calculations. The state of each process can be completed W (Wait), running R (Run), or completion of F (Finish), one of three state. Platform: |
Size: 7168 |
Author:生 |
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Description: 调度算法的源代码,想必许多初学者会比较喜欢吧.-scheduling algorithm source code, I see many beginners would be more like it. Platform: |
Size: 2048 |
Author:ll |
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Description: 处理机调度,编写一个进程调度程序,允许多个进程共行的进程调度程序。
进程调度算法:采用最高优先数优先的调度算法(即把处理机分配给优先数最高的进程)和先来先服务算法。
每个进程有一个进程控制块(PCB)表示。进程控制块可以包含如下信息:进程名、优先数、到达时间、需要运行时间、已用CPU时间、进程状态等等。
进程的优先数及需要的运行时间可以事先人为地指定(也可以由随机数产生)。进程的到达时间为输入进程的时间。
进程的运行时间以时间片为单位进行计算。
每个进程的状态可以是就绪 W(Wait)、运行R(Run)、或完成F(Finish)三种状态之一。
就绪进程获得 CPU后都只能运行一个时间片。用已占用CPU时间加1来表示。
如果运行一个时间片后,进程的已占用 CPU时间已达到所需要的运行时间,则撤消该进程,如果运行一个时间片后进程的已占用CPU时间还未达所需要的运行时间,也就是进程还需要继续运行,此时应将进程的优先数减1(即降低一级),然后把它插入就绪队列等待CPU。
每进行一次调度程序都打印一次运行进程、就绪队列、以及各个进程的 PCB,以便进行检查。
重复以上过程,直到所要进程都完成为止
-processor scheduling, the preparation of a process scheduling procedures, allowing a total of more than process the process scheduler. Process scheduling algorithm : Highest priority for priority scheduling algorithm (namely processors allocated to the highest priority in the process) and a first-come first-service algorithm . Each process is a process control block (PCB) said. Process control block may contain the following information : process, and a number of priority, arriving in time, the running time, CPU has spent time, the process of the state and so on. Several priorities for the process of the operation and needs time to be designated prior to artificially (and also by the random number generator). The arrival process for the importation process of time. The process of running t Platform: |
Size: 101376 |
Author:王山 |
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Description: c++磁盘调度算法 c++磁盘调度算法-c disk scheduling algorithm c c disk scheduling algorithm disk scheduling algorithm Platform: |
Size: 1024 |
Author:5837499 |
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Description: 3个CPU调度算法的simulation. 分别是Short Job First,High Return Ration Next, Round Robin.
模拟得到R,U,S等重要指标。-3 CPU scheduling algorithm of the simulation. Were Short Job First, High Return Ration Next, Round Robin. Simulated R, U, S and other important indicators. Platform: |
Size: 19456 |
Author:tennic |
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Description: MATLAB对11中调度算法进行比较,包括min-min、max-min、遗传算法等等。-MATLAB to 11 in comparison scheduling algorithm, including the min-min, max-min, genetic algorithms and so on. Platform: |
Size: 292864 |
Author:gourd |
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Description: 一、目的要求
用高级语言编写和调试一个或多个作业调度的模拟程序,以加深对作业调度算法的理解。
二、例题:为单道批处理系统设计一个作业调度程序。
由于在单道批处理系统中,作业一投入运行,它就占有计算机的一切资源直到作业完成为止,因此调度作业时不必考虑它所需要的资源是否得到满足,它所占用的 CPU时限等因素。
作业调度算法:采用先来先服务(FCFS)调度算法,即按作业提交的先后次序进行调度。总是首先调度在系统中等待时间最长的作业。
-First, the purpose of high-level language requires writing and debugging of one or more job scheduling simulation procedures in order to deepen their understanding of job scheduling algorithms. B, Example: In order to single-channel system, the design of a batch job scheduling procedures. Road as a result of a single batch system, the operation of a put into operation, it would occupy all the resources until the computer s operation has been completed, so no need to consider when scheduling operation of the resources it needs are met, it is occupied by factors such as CPU time limit. Scheduling Algorithm: The First Come First Served (FCFS) scheduling algorithm, that is, according to the order of operations submitted for scheduling. Scheduling is always first in the system waiting for the longest operations. Platform: |
Size: 73728 |
Author:Anson |
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Description: ○1 设计进程进程控制块PCB表结构,分别适用于优先数调度算法和循环轮转调度算法。
PCB结构通常包括以下信息:进程名,进程优先数(或轮转时间片),进程所占用的CPU时间,进程的状态,当前队列指针等。根据调度算法的不同,PCB结构的内容可以作适当的增删。
○2 建立进程就绪队列。对两种不同算法编制入链子程序。
○3 编制两种进程调度算法:1)优先度调度;2)循环轮转调度。
-○ design process 1 process control block PCB table structure, namely the number applies to the priority scheduling algorithm and the cycle of rotation scheduling algorithm. PCB structure typically includes the following information: process name, process priority number (or the rotation time slice), the process of occupying CPU time, the process of the state, such as the current queue pointer. According to the different scheduling algorithm, PCB content of the structure can be used for appropriate additions and deletions. ○ 2 to establish the process ready queue. Algorithm on two different procedures for the preparation into the chain. ○ 3 the process of the preparation of two scheduling algorithms: 1) priority scheduling 2) Round-Robin scheduling cycle. Platform: |
Size: 118784 |
Author:狄影 |
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Description: Round-robin scheduling algorithm is one of the simplest scheduling algorithms. It is designed especially for time-sharing systems. The ready queue is treated as a circular queue. The algorithm assigns a time slice(also called time quantum) to each process in the ready queue in order, handling all processes without priority. A maximum of one time slice is allocated at once. If the remaining request is less than a time slice, only the remaining request time is allocated. Round-robin scheduling is both simple and easy to implement. It is also starvation-free. Platform: |
Size: 148480 |
Author:邓思兵 |
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Description: 编程序实现下述磁盘调度算法,并求出每种算法的平均寻道长度,要求设计主界面以灵活选择某算法,且以下算法都要实现:
1、先来先服务算法(FCFS)
2、最短寻道时间优先算法(SSTF)
3、扫描算法(SCAN)
4、循环扫描算法(CSCAN)
-Programmed to achieve the following disk scheduling algorithm, and calculated for each algorithm the average seek length, the main interface to design a flexible choice of a certain algorithm, and must realize the following algorithm: 1, first-come first-serve algorithm (FCFS) 2, Shortest Seek Time priority algorithms (SSTF) 3, scan algorithm (SCAN) 4, cycle scan algorithm (CSCAN) Platform: |
Size: 603136 |
Author:CLJ |
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Description: 1. 最早截止时间优先EDF(Earliest DeadlineFirst)算法是非常著名的实时调度算法之一。在每一个新的就绪状态,调度器都是从那些已就绪但还没有完全处理完毕的任务中选择最早截止时间的任务,并将执行该任务所需的资源分配给它。在有新任务到来时,调度器必须立即计算EDF,排出新的定序,即正在运行的任务被剥夺,并且按照新任务的截止时间决定是否调度该新任务。如果新任务的最后期限早于被中断的当前任务,就立即处理新任务。按照EDF算法,被中断任务的处理将在稍后继续进行。
-1. The first priority deadline for EDF (Earliest DeadlineFirst) algorithm is a very famous one in real-time scheduling algorithm. In every state of readiness for a new, scheduler from those already in place but has not fully dealt with the mandate to select the earliest deadline for the task, and the implementation of the tasks required for the allocation of resources to it. In the arrival of new tasks, the scheduler must immediately calculate EDF, from the new sequencing, that is the task of running was curtailed, and new tasks in accordance with the deadline for deciding whether to dispatch the new tasks. If the new mission as early as the deadline for the immediate task was interrupted immediately to deal with new tasks. In accordance with the EDF algorithm, the task was interrupted to deal with will be at a later date to continue. Platform: |
Size: 2048 |
Author:wjx |
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Description: 用VB编的作业调度算法 使用了FCFS和SJF算法-VB series with the job scheduling algorithm uses the FCFS and SJF algorithm Platform: |
Size: 62464 |
Author:ww |
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Description: First Come First Served operating system scheduling algorithm operating system -First Come First Served operating system scheduling algorithm operating system Platform: |
Size: 1024 |
Author:mengjie |
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Description: 网格环境下的Min_Min任务调度算法的研究,
利用SIMGRID模拟,在LINUX环境下运行,MIN_MIN任务调度算法的研究-Grid Task Scheduling Algorithm Min_Min of the study, the use of SIMGRID simulation run in the LINUX environment, MIN_MIN Task Scheduling Algorithm Platform: |
Size: 1381376 |
Author:lihongfeng |
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Description: This a scheduling algorithm to maintain QOS for all the users-This is a scheduling algorithm to maintain QOS for all the users Platform: |
Size: 5120 |
Author:vijayan |
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