OC-48c High-Speed Network PCI Card : Implementation and Evaluation(<Special Issue>New Technologies in the Internet and their Applications)
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概要
- 論文の詳細を見る
We have developed an OC-48c (2 4Gbps) PCI-compliant network interface card and drivers with the aim of evaluating the effectiveness of our proposed link layer protocol MAPOS. In this paper, we study the effectiveness of MAPOS particularly from the viewpoint of the influence of packet sizes up to the 64-kbyte jumbo MTU size and the effectiveness of our new implementation of the non-interrupt-driven sending process and interrupt batching receiving process deployed to improve the throughput in short-packet transmissions. Our main findings are as follows,・Enlarging the packet size up to 64-kbyte MTU improves the performance in transmission. OC-48c wire speed is achieved with packet sizes larger than 16kbytes.・Implementation of the non-interrupt-driven sending process and the interrupt batching receiving process improves the performance of short-packet transmission. In particular, the transmission throughput is improved by 50% when 64-byte short packets are used. The maximum loss-free receive rate is also raised by 50% when 4-kbyte packets arrive.・With a high-performance CPU, the data-transfer speed of the DMA controller for jumbo packets cannot keep up with the packet-queueing speed of the CPU Our proposed procedure for adaptive algorithm switching method can resolve this problem. The maximum TCP throughput observed in our measurement using the latest PCs and MAPOS OC-48c PCI card was 2342 5Mbps. This throughput represents the highest performance in a legacy-PCI-based system according to the results database of the benchmarking software.
- 社団法人電子情報通信学会の論文
- 2003-11-01
著者
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Shimizu K
The Authors Are With Department Of Electrical And Electronics Engineering The Faculty Of Science And
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Ogura Takashi
Silicon Systems Research Laboratories Nec Corporation
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Ogura Takeshi
Ntt Cyber Space Laboratories
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Shimizu K
Ntt Network Innovation Laboratories
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Ogura T
Ntt Network Innovation Laboratories
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SHIMIZU Kenji
NTT Network Innovation Laboratories, NTT Corporation
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OGURA Tsuyoshi
NTT Network Innovation Laboratories, NTT Corporation
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KAWANO Tetsuo
NTT Network Innovation Laboratories, NTT Corporation
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KIMIYAMA Hiroyuki
NTT Network Innovation Laboratories, NTT Corporation
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MARUYAMA Mitsuru
NTT Network Innovation Laboratories, NTT Corporation
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Kawano Tetsuo
Ntt Network Innovation Laboratories
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MARUYAMA Mitsuru
NTT Software Laboratories
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Maruyama M
Ntt Network Innovation Laboratories
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Maruyama Mitsuru
Ntt Network Innovation Laboratories Ntt Corporation
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Kimiyama Hiroyuki
Ntt Network Innovation Laboratories
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Ogura Tsuyoshi
NTT Network Innovation Laboratories
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Maruyama Mitsuru
NTT Network Innovation Laboratories
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