Record Details


Field	Value

Title	Priority scheduling in parallel I/O systems

Names	VENUGOPAL, CR RAO, SSSP PATKAR, S
Date Issued	1999 (iso8601)
Abstract	Performance of I/O intensive applications on a multiprocessor system depends mostly on the variety of disk access delays encountered in the I/O system. With increasing processor speeds and multiprocessor organization, the demands on the I/O subsystem have been steadly growing. To obtain a better system performance it is necessary to improve the I/O performance. An event-driven parallel I/O simulator has been developed to evaluate the impact of delays in the parallel I/O system. Many I/O intensive applications have more read access than the write. We have proposed read priority I/O scheduling algorithm to such application programs. We have found 3% to 10% improvement in the I/O system performance. The results of the I/O simulator has been validated by an analytical model that we have developed. Analytical model results fairly agrees with simulator. Our results indicated that priority based I/O scheduling could be benificial to overall performance.
Genre	Proceedings Paper
Identifier	INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED PROCESSING TECHNIQUES AND APPLICATIONS, VOLS I-V, PROCEEDINGS,2554-2560

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