Performance of high-speed network I/O subsystems: case study of a fibre channel network

Mengjou Lin, Jenwei Hsieh, David H Du, James A. MacDonald

Research output: Contribution to journalConference articlepeer-review

9 Scopus citations


Emerging high-speed networks provide several hundred megabits per second to several gigabits per second of raw communication bandwidth. However, the maximum achievable throughput available to the end-user or application is quite limited. In order to fully utilize the network bandwidth and to improve the performance at the application level, a careful examination of I/O subsystems is essential. In this paper, we study one emerging high-speed network, the Fibre Channel network. The objectives of this study are: 1) to understand how the I/O subsystem relates to network operations, 2) to evaluate and analyze the performance of such a subsystem, and 3) to propose possible approaches for improving the maximum achievable bandwidth. We will show (by simply modifying device driver code) a 75% maximum achievable bandwidth improvement. Other ways of improving network performance are also discussed.

Original languageEnglish (US)
Pages (from-to)174-183
Number of pages10
JournalProceedings of the ACM/IEEE Supercomputing Conference
StatePublished - Dec 1 1994
EventProceedings of the 1994 Supercomputing Conference - Washington, DC, USA
Duration: Nov 14 1994Nov 18 1994


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