New Linux Kernel Feature Could Cut Energy Use by 30%

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A new Linux Kernel feature developed with contributions from the University of Waterloo could reduce energy use by as much as 30%. Known as Runtime Average Power Limiting (RAPL), the feature dynamically adjusts power limits in real-time to optimize energy use for laptops, servers, and other hardware.

RAPL reduces energy waste without compromising performance by fine-tuning power consumption based on workload demands. Already integrated into the Linux Kernel, it is expected to deliver significant energy savings across a wide range of devices, from personal laptops to large-scale data centers.

“This could transform energy efficiency for high-performance computing systems,” said Mark Feldman, a tech consultant. Researchers from the University of Waterloo played a key role in designing and refining the feature, which is particularly valuable for systems where power efficiency is critical. However, its full impact will depend on factors such as hardware compatibility and workload types.

For data centers, a 30% reduction in energy use could mean substantial cost savings and a lower carbon footprint. For individual users, it could extend battery life and reduce energy bills. With energy efficiency now a top priority, this update strengthens Linux’s position as a leader in sustainable computing.

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