A Content Delivery Accelerator in Data-Intensive Servers

The standard OS and server platform hardware have not been optimized for applications that transfer large multimedia files, resulting in poor server I/O performance. One source of the problem is that several redundant copies are introduces when the data is transferred from disks to a Network Interfa...

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Bibliographic Details
Published inLecture notes in computer science pp. 387 - 395
Main Authors Cho, Joon-Woo, Choi, Hyun-Jin, Lim, Seung-Ho, Park, Kyu-Ho
Format Book Chapter Conference Proceeding
LanguageEnglish
Published Berlin, Heidelberg Springer Berlin Heidelberg 2005
Springer
SeriesLecture Notes in Computer Science
Subjects
Applied sciences
Computer science; control theory; systems
Computer systems and distributed systems. User interface
Exact sciences and technology
Software
Multimedia
Input output
High performance
Parallel algorithm
File transfer
Redundancy
Very large databases
Shortest path
Data transmission
Linux system
Network interfaces
Distributed computing
Delay
Circuit architecture
Logical function
UNIX system
Accelerator
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Summary:The standard OS and server platform hardware have not been optimized for applications that transfer large multimedia files, resulting in poor server I/O performance. One source of the problem is that several redundant copies are introduces when the data is transferred from disks to a Network Interface Card. To solve the problem of redundant copies, we propose a Contents Delivery Accelerator that accelerates large file transfers by eliminating the redundant copies from disks to the NIC. To eliminate the redundant copies, the CDA introduces a new function, called a logical direct link, which provides the shortest path from the disks to the NIC. By using the shortest path, we can completely eliminate the redundant copies, thereby improving the I/O performance of server. The CDA architecture is a combined hardware-software approach. Thus, it comprises CDA hardware and a modified Linux kernel. We implemented the current version of the CDA on a Linux 2.4.18 kernel and an IXP1200 evaluation board. In the experiment, we compared the logical-direct path with a redundant path. For the transfer of data from disks to the NIC, our experimental results show that the average transfer latency of a direct path is as much as 30 percent less than a redundant path.
ISBN:9783540298106
354029810X
ISSN:0302-9743
1611-3349
DOI:10.1007/11577188_56