Asymmetric Multiprocessing

Peter Robinson pbrobinson at
Mon Apr 30 09:28:12 EDT 2012

On Mon, Apr 30, 2012 at 2:23 PM, John Watlington <wad at> wrote:
> Can someone please enlighten me as to the current state
> of Linux and asymmetric multiprocessing ?   A number of
> ARM SoCs on the market include both high performance
> and low power cores.
> Does Linux have a strategy for scheduling to these
> asymmetric processing units yet ?

Presumable you're referring to the general cores like the Tegra3 and
not some of the supplemental cores like on the OMAP devices for media
processing? Support for the Tegra 3 core landed in 3.4, Linaro is
working on the arm big.LITTLE Cortex A15/A7 support. There's a two
phase approach to this, I thing there's a couple of articles on LWN
about the direction they are taking.


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