Update to Linux kernel could cut energy use in data centres by up to 30%
Researchers at the Cheriton School of Computer Science modified the Linux kernel to reduce data center energy consumption by up to 30%, enhancing network efficiency and optimizing CPU power usage.
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Researchers at the Cheriton School of Computer Science have developed a modification to the Linux kernel that could potentially reduce energy consumption in data centers by up to 30%. This update addresses inefficiencies in network traffic processing, which is crucial as data centers account for a significant portion of global energy use. The modification, which involves rearranging operations within the Linux networking stack, enhances both performance and energy efficiency without adding new components. The research, led by Professor Martin Karsten and former student Peter Cai, was presented at ACM SIGMETRICS 2024 and has been integrated into Linux kernel version 6.13. A key feature of their innovation is IRQ (interrupt request) suspension, which optimizes CPU power usage during varying traffic conditions. If adopted by major companies using Linux, such as Amazon and Google, this method could lead to substantial energy savings globally. The researchers emphasize the importance of sustainability in computer science and advocate for further innovations in this area.
- A modification to the Linux kernel could reduce data center energy use by up to 30%.
- The update improves network traffic processing efficiency without adding new components.
- IRQ suspension is a key feature that balances CPU power usage during different traffic conditions.
- The research has been published in Linux kernel version 6.13.
- Adoption by major tech companies could lead to significant global energy savings.
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