Caching and Writeback Policies in Parallel File Systems
โ Scribed by D. Kotz; C.S. Ellis
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 541 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0743-7315
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โฆ Synopsis
Improvements in the processing speed of multiprocessors are outpacing improvements in the speed of disk hardware. Parallel disk (1 / O) subsystems have been proposed as one way to close the gap between processor and disk speeds. Such parallel disk systems require parallel file system software to avoid performancelimiting bottlenecks. We discuss cache management techniques that can be used in a parallel file system implementation for multiprocessors with scientific workloads. We examine several writeback policies, and give results of experiments that test their performance. 1993 Academic Press, Inc.
๐ SIMILAR VOLUMES
In a multiprogrammed system, when the operating system switches contexts, in addition to the cost for handling the processes being swapped out and in, the cache performance of processors also can be aected. If frequent context switching replaces the data loaded into cache memory before they are comp