Impact of delays in parallel I/O system: An empirical study
- Indian Institute of Technology, Bombay (India)
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. Over the years, the improvement in disk performance has taken place slower than corresponding increase in processor speeds. It is therefore necessary to model I/O delays and evaluate performance benefits of moving an application to a better multiprocessor system. In this work, we perform such an analysis by measuring I/O delays for a synthesized application that uses Parallel Distributed File System. The aim of this study was to evaluate the performance benefits of better disks in a multiprocessor system which was designed few years back. We report how the I/O performance would get affected if an application were to be run on a system which would have better disks and communication links. In this study, we show a substantial improvement in the performance of I/O system with better disks and communication links with respect to the existing system.
- OSTI ID:
- 421391
- Report Number(s):
- CONF-960835-; TRN: 96:006403-0054
- Resource Relation:
- Conference: 5. IEEE international symposium on high-performance distributed computing, Syracuse, NY (United States), 6-9 Aug 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the fifth IEEE international symposium on high performance distributed computing; PB: 664 p.
- Country of Publication:
- United States
- Language:
- English
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