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Implementation and Evaluation of Fast Parallel Packet Filters on a Cell Processor
Description
Packet filters are essential for most areas of recent information network technologies. While high-end expensive routers and firewalls are implemented in hardware-based, flexible and cost-effective ones are usually in software-based solutions using general-purpose CPUs but have less performance. The authors have studied the methods of applying code optimization techniques to the packet filters executing on a single core processor. In this paper, by utilizing the multi-core processor Cell Broadband Engine with software pipelining, we construct a parallelized and SIMDed packet filter 40 times faster than the naive C program filter executed on a single core.
