A Disk Scheduling Algorithm Based on ANT Colony Optimization

Audio, animations and video belong to a class of data known as delay sensitive because they are sensitive to delays in presentation to the users. Also, because of huge data in such items, disk is an important device in managing them. In order to have an acceptable presentation, disk requests deadlines must be met, and a real-time scheduling approach should be used to guarantee the timing requirements for such environment. However, some disk scheduling algorithms have been proposed since now to optimize scheduling real-time disk requests, but improving the results is a challenge yet.

In this paper, we propose a new disk scheduling method based on Ant Colony Optimization (ACO) approach. In this approach, ACO models the tasks and finds the best sequence to minimize number of missed tasks and maximize throughput. Experimental results showed that the proposed method worked very well and excelled other related ones in terms of miss ratio and throughput in most cases.

ISCA Conference on Parallel and Distributed Computing and Communication Systems (PDCCS), 2009



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