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Content Provider | IEEE Xplore Digital Library |
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Author | Shuo Wang Jiangling Zhang Dan Feng |
Copyright Year | 2003 |
Description | Author affiliation: Dept. of Comput. Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China (Shuo Wang; Jiangling Zhang; Dan Feng) |
Abstract | To meet the need of performance in high quality digital broadcasting systems (HQDBS), such as high IO width, no frame loss, and seamless switch etc, an algorithm called MPPDIO (multi-thread parallel prefetch Direct IO) is proposed in this paper. The size of the sharing buffer between multi-threads is modeled and calculated. To investigate the validation of the MPPDIO algorithm, the I/O performances are analyzed and compared when adopting a traditional pre-cache sequence algorithm and adopting the MPPDIO algorithm, and a set of comparable experiments is proceeded. Analysis and test results indicate that the traditional pre-cache sequence algorithm can't meet the need of performance, and the MPPDIO algorithm not only can perfectly satisfy the performance requirements but also can improve the utilization of disk I/O channel and reduce the load of CPU. The MPPDIO algorithm can also meet the requirements of digital broadcasting on HDTV (high definition television), which needs the same performance as the HQDBS. |
Sponsorship | China Comput. Federation IEEE Comput. Soc. Beijing Center IEEE Comput. Soc. Tech. Committee on Distributed Process. Shanghai Comput. Soc |
Starting Page | 442 |
Ending Page | 445 |
File Size | 212768 |
Page Count | 4 |
File Format | |
ISBN | 0769520332 |
DOI | 10.1109/ICCNMC.2003.1243087 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2003-10-20 |
Publisher Place | China |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | TV broadcasting Streaming media Switches Digital video broadcasting Performance analysis Algorithm design and analysis HDTV Testing Video compression Multimedia communication |
Content Type | Text |
Resource Type | Article |
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