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Read-Ahead with Nonblocking RPC

Most file system implementations implement read-ahead to prefetch file data before it is requested. This significantly improves bandwidth for sequential file access, which is easy to detect and exploit [20]. We have extended GMS to support read-ahead in order to meet our goal of delivering files from network memory at full network bandwidth. GMS read-ahead hides fetch latency and delivers peak bandwidth by pipelining the network with a continuous stream of page fetches.



 

Darrell Anderson
1998-04-27