Description: Disk drive scheduling efficiency of the disk have a major impact. Disk drive scheduling algorithm will have a direct impact on the efficiency of secondary storage, thus affecting the overall efficiency of the computer system. Commonly used in disk drive scheduling algorithms are: simple disk drive scheduling algorithm is first in first out (FIFO) method. The essence of this algorithm always strictly chronological order of the disk requests to be addressed. Algorithm is simple, easy to understand and relatively fair, the process of starvation phenomenon does not occur. However, the algorithm is the number of cylinders may be more mobile and will often change the direction of movement, efficiency to be improved.
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4磁盘驱动调度算法的模拟.doc
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