Memory Resource Allocation for File System Prefetching From a Supply Chain Management Perspective

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As an important technique to hide disk I/O latency, prefetching has been widely studied, and dynamic adaptive prefetching techniques have been deployed in diverse storage environments. However, two issues are not well addressed by previous research, how to handle the prefetching resource allocation between concurrent sequential access streams with different request rates, and how to coordinate prefetching at multiple levels in the data access path.