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Rangarajan, Murali & Bohra, Aniruddha & Banerjee, Kalpana & Carrera, Enrique V. & Bianchini, Ricardo & Iftode, Liviu. TCP Servers: Offloading TCP Processing in Internet Servers. Design, Implementation, and Performance. Retrieved from https://doi.org/doi:10.7282/T3K077RS

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TCP Servers: Offloading TCP Processing in Internet Servers. Design, Implementation, and Performance (2002)
Murali Rangarajan, Aniruddha Bohra, Kalpana Banerjee, Enrique V. Carrera, Ricardo Bianchini, Liviu Iftode
AbstractTCP Server is a system architecture aiming to offload network processing from the host(s) running an Internet server. The basic idea is to execute the TCP/IP processing on a dedicated processor, node, or device (the TCP server) using low-overhead, non-intrusive communication between it and the host(s) running the server application.

In this paper, we propose, implement, and evaluate three TCP Server architectures: (1) a dedicated network processor on a symmetric multiprocessor (SMP) server, (2) a dedicated node on a cluster-based server built around a memory-mapped communication interconnect such as VIA, and (3) an intelligent network interface in a cluster of intelligent devices with a switch-based I/O interconnect such as Infiniband.

Based on our experience and results, we can draw a few important conclusions: (i) an SMP-based approach to TCP servers is more efficient than a cluster-based one, given the lower overheads and the slightly more even division of labor between application and network processors of the former approach, (ii) the benefits of SMP and cluster-based TCP servers reach 18% and 30% respectively, in the scenarios we studied, (iii) the simulation results show greater gains of up to 45% for a cluster of intelligent devices, and (iv) it is clear that greater gains are possible only if we perform dynamic load balancing between hosts and the TCP servers.
Persistent URLhttps://doi.org/doi:10.7282/T3K077RS
NoteTechnical report DCS-TR-481
RightsThis Item is protected by copyright and/or related rights.You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.For other uses you need to obtain permission from the rights-holder(s).