| Title: | Shared Address Space I/O: A Novel I/O Approach for System-on-a-Chip Networking |
| Author: | Sun, Di-Shi ; Blough, Douglas M. |
| Abstract: | For real-time system-on-a-chip (SoC) network applications, high-speed and low-latency network I/O is the key to achieve predictable execution and high performance. Existing network I/O approaches are either not directly suited to SoC applications, or too complicated and expensive. This paper introduces a novel approach, referred to as shared address space I/O, for real-time SoC network applications. This approach facilitates building of heterogeneous multiprocessor systems with application intensive processors (main processor) and I/O intensive processors (I/O processor), where network I/O processing can be offloaded to a specialized I/O processor. With the shared address space I/O approach, in such a system, communication and synchronization between main and I/O processors can be implemented with a shared address space. This approach is realized through Atalanta, a heterogeneous real-time SoC operating system we have developed. In this paper, we demonstrate that shared address space I/O can provide high-speed and low-latency network I/O for SoC network applications. |
| Type: | Technical Report |
| URI: | http://hdl.handle.net/1853/93 |
| Date: | 2004-02-19 |
| Relation: | CERCS;GIT-CERCS-04-08 |
| Publisher: | Georgia Institute of Technology |
| Subject: |
Input/output
Atalanta Heterogeneous multiprocessor systems High-speed network I/O Low-latency network I/O Shared address space I/O SoC System-on-a-chip |
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| git-cercs-04-08.pdf | 72.78Kb |
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