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Typical NFS clients write in a lazy fashion: they leave dirty pages in the page cache and defer writing to the server until later. This reduces network traffic when applications repeatedly modify the same set of pages. However, this approach can lead to memory pressure, when the number of available pages on the client system is so low that the system must work harder to reclaim dirty pages. System...
We have designed and implemented the blue whale file system (BWFS), a scalable distributed file system for large distributed data-intensive applications. With many of the features as previous distributed file systems, BWFS has successfully met our storage needs and is widely deployed within many fields. Although excellent for high-bandwidth access to large files, BWFS's out-of-band data transfer mode...
Today, call control servers use COTS (commercial off-the-shelf) components such as Advanced Telecom Computing Architecture (ATCA) and Carrier Grade Linux. However, the adoption of COTS components causes an increase in the maximum response time of high-priority write system call during synchronous state transitions and recording whenever IO operation is congested by normal-priority IO requests. Call...
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