This dissertation investigates the use of a hardware mechanism called Eager Data Transfer
(EDT) for achieving the reduction of communication latency for user-level network
protocol. To reach the goal, the dissertation addresses the following research issues.
First, the development of a communication system performance evaluation tool
called Linux/SimOS is presented. Linux/SimOS provides a full system profiling
capability to allow measurement at various level including hardware, operating system,
and application.
Second, the performance analysis of network protocols is presented. For the
assessment of overhead related to network protocol operation, Linux/SimOS was used to
perform the detailed latency measurements for TCP/IP, UDP/IP, and M-VIA network
protocols.
Finally, EDT is proposed for reducing communication latency. Since the data
transfer time constitutes a significant portion of overall communication latency, the
reduction of data transfer time leads to low communication latency. EDT is based on
cache coherence interface hardware for reducing data transfer overhead during network
protocol operation. Our simulation result shows that EDT is very effective in attaining
low communication latency compared to the DMA-based approaches. / Graduation date: 2005
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28731 |
| Date | 11 June 2004 |
| Creators | Won, Chulho |
| Contributors | Lee, Il-Beom |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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