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Datacentre energy efficiency optimization in high-speed packet I/O frameworks

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Show simple item record Trifonov, Hristo Heffernan, Donal 2022-03-28T10:41:12Z 2022
dc.description peer-reviewed en_US
dc.description The full text of this article will not be available in ULIR until the embargo expires on the 23/03/2023
dc.description.abstract To meet the demands for faster network packet processing requirements in datacentres, packet I/O accelerator solutions have emerged which are dedicated to enabling faster packet forwarding capabilities. Often, such I/O frameworks are implemented in software that is hosted on a Linux operating system and for many of the solutions the software is run in the system’s userspace, thus bypassing the operating system’s kernel to facilitate a streamlined packet throughput rate. However, operating outside of the kernel loses the real-time interrupt facility, so many of the I/O accelerator schemes rely on a very high-speed polling solution to react to receive packet traffic arrivals. This continuous fast polling rate results in the CPU running hot and wasting energy. An experimental approach to reduce such energy inefficiencies is introduced based on an adaptive polling mechanism (APM). The investigation results show potential CPU energy savings ranging between 9% and 76% depending on traffic load, and if CPU sleep state is allowed. en_US
dc.language.iso eng en_US
dc.publisher Inderscience en_US
dc.relation.ispartofseries International Journal of Communication Networks and Distributed Systems;
dc.rights © Inderscience en_US
dc.subject networks en_US
dc.subject packet I/O accelerator en_US
dc.subject energy efficiency en_US
dc.subject multi-core processor en_US
dc.subject datacentres en_US
dc.subject Linux en_US
dc.title Datacentre energy efficiency optimization in high-speed packet I/O frameworks en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1504/IJCNDS.2022.10043690 2023-03-23
dc.embargo.terms 2023-03-23 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US

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