Caching and writeback policies in parallel file systems
نویسندگان
چکیده
Improvements in the processing speed of multipro cessors are outpacing improvements in the speed of disk hardware Parallel disk I O subsystems have been proposed as one way to close the gap between processor and disk speeds Such parallel disk systems require par allel le system software to avoid performance limiting bottlenecks We discuss cache management techniques that can be used in a parallel le system implementa tion We examine several writeback policies and give results of experiments that test their performance
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