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실시간 스트림을 지원하기 위한 주문형 서버에서의 버퍼 공유 정책
박용운,홍규완 동의공업대학 2000 論文集 Vol.26 No.1
In this paper, we present a new buffer pool management scheme designed for video type news objects to build a cost-effective News On Demand storage server for serving users requests beyond the limitation of disk bandwidth. With our proposed buffer cache management scheme, a requested data is check to see whether or not it is worthy of caching by checking its average arrival interval and current disk traffic density, Subsequently, only granted news objects are permitted to get into the buffer pool, where buffer allocation is made not on the block basis but on the object basis. By using this caching policy, the frequently accessed objects are cached and then subsequent streams for those objects are serviced directly from the buffer pool, not contacting the disks where the original copies resides: this eventually leads to the construction of a storage server with relatively low costs.