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Linux kernel could cut energy use in data centres by up to 30 per cent

A news article about Cheriton CS research, which led to a modification to the Linux kernel that could cut energy consumption in data centres by as much as 30%

Researchers at the Cheriton School of Computer Science have developed a small modification to the Linux kernel that could reduce energy consumption in data centres by as much as 30 per cent. To this end, Professor Karsten teamed up with Joe Damato, distinguished engineer at Fastly, to develop a small section of code — a non-intrusive kernel change of just 30 lines — that would improve Linux’s network traffic processing. By reducing unnecessary CPU interruptions during high-traffic periods, IRQ suspension enhances network performance while maintaining low latency during low-traffic conditions.

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