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EUROSYS
2006
ACM

TCP offload through connection handoff

9 years 6 months ago
TCP offload through connection handoff
This paper presents a connection handoff interface between the operating system and the network interface. Using this interface, the operating system can offload a subset of TCP connections in the system to the network interface, while the remaining connections are processed on the host CPU. Offloading can reduce computation and memory bandwidth requirements for packet processing on the host CPU. However, full TCP offloading may degrade system performance because finite processing and memory resources on the network interface limit the amount of packet processing and the number of connections. Using handoff, the operating system controls the number of offloaded connections in order to fully utilize the network interface without overloading it. Handoff is transparent to the application, and the operating system may choose to offload connections to the network interface or reclaim them from the interface at any time. A prototype system based on the modified FreeBSD operating system show...
Hyong-youb Kim, Scott Rixner
Added 22 Aug 2010
Updated 22 Aug 2010
Type Conference
Year 2006
Where EUROSYS
Authors Hyong-youb Kim, Scott Rixner
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