ARM Updates Energy Aware Scheduling For The Linux Kernel
Written by Michael Larabel in Linux Kernel on 28 June 2018 at 08:20 AM EDT. Add A Comment
LINUX KERNEL --
ARM Linux developer Quentin Perret has sent out the latest set of kernel patches for implementing Energy Aware Scheduling (EAS).

This Energy Aware Scheduling is a simplified version of what is currently being used by the Android AOSP kernel and is already being used in today's Android smartphones using big.LITTLE SoCs.

With this energy-aware scheduling that makes use of the Energy Model (EM) framework, there are both power-savings and performance improvements. Tests carried out on a Juno r0 and Hikey960 found the energy use to generally improve by 1~2% but went as high as ~6% with a higher number of concurrent tasks on the system. The performance meanwhile improved by generally 2% or less.

This fourth version of these ARM EAS task scheduler patches for the Linux kernel can be found on the kernel mailing list and hopefully soon will work their way into the mainline tree.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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