Abstract
This paper presents a queuing algorithm which is tailored for usage in speculative Network Processors (NPs). The queuing system uses Weighted-Fair Queuing queues (WFQ) which are extended by Priority Queues (PQ). While WFQ represents a common implementation in current routers supporting differentiated services, PQs allow to compensate extended protocol processing times due to mispredictions in a speculative system. When applying this concept, the generation of delay-jitter which would limit applicability of speculative packet processing for Real-Time (RT) traffic can be avoided. Utilising the presented queuing system in conjunction with speculative protocol processing in an NP, a latency reduction of up to 14.9% can be achieved compared to systems which support traditional packet processing methodologies.
Original language | English |
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Journal | International Journal of High Performance Computing and Networking |
Volume | 4 |
Issue number | 5-6 |
Pages (from-to) | 241-247 |
Number of pages | 7 |
ISSN | 1740-0562 |
Publication status | Published - 01.01.2006 |