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To use Energy Aware Scheduler (EAS) the Energy Model (EM) should be registered for CPUs. Add dynamic-power-coefficient into CPU nodes which let CPUFreq subsystem register the EM structures. This will increase energy efficiency of big.LITTLE platforms. The 'dynamic-power-coefficient' values have been obtained experimenting with different workloads. The power measurements taken from big CPU Cluster and LITTLE CPU Cluster has been compared with official documents and synthetic workloads estimations. The effective power ratio between Cortex-A7 and Cortex-A15 CPUs (~3x) is also aligned with documentation. Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.