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A Lock-Controlled Session Table Partitioning Scheme with Dynamic Resource Balancing for Multi-Core Architecture

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3 Author(s)
Wen-Yen Tsai ; Inst. of Commun. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan ; Nen-Fu Huang ; Hsien-Wei Hung

Connection tracking by manipulating session tables is essential for stateful inspection capable applications such as stateful firewalls, network-based intrusion prevention systems (NIPS), traffic accounting and monitoring to process packets according to session state information. With the prevalence of multi-core computing, it is crucial to optimize the existing connection tracking structures and algorithms to fully utilize the underlying parallelism. In this paper, we propose a lock-controlled session table partitioning scheme accompanied with a dynamic resource balancing algorithm for session-aware multi-core networking systems. Experimental results show that the proposed scheme reduces the number of lock contentions to a maximum of 100 times less and, in turn, boosts the performance to 3.5 Gbps higher than the baseline. 100% resource utilization is also achieved by overcoming the constraint of fixed-sized partitioning.

Published in:

Communications (ICC), 2011 IEEE International Conference on

Date of Conference:

5-9 June 2011

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