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The Continuous Media File System
David P. Anderson, University of California, Berkeley; Yoshitomo Osawa, Sony Corporation; Ramesh Govindan, University of California, Berkeley
Handling digital audio and video data ("continuous media") in a general-purpose file system can lead to performance problems. File systems typically optimize overall average performance, while many audio/video applications need guaranteed worst-case performance. These guarantees cannot be provided by fast hardware alone; we must also consider the interrelated software issues of file layout on disk, disk scheduling, buffer space management, and admission control, The Continuous Media File System (CMFS) is a prototype file system that addresses these issues.