Asymmetric Multiprocessing

Peter Robinson pbrobinson at
Mon Apr 30 09:53:41 EDT 2012

On Mon, Apr 30, 2012 at 2:46 PM, John Watlington <wad at> wrote:
> On Apr 30, 2012, at 9:28 AM, Peter Robinson wrote:
>> 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?
> I'm referring to cores running the same instruction set, but with
> widely varying processing speeds (OMAP 5, Marvell PXA2128,
> i.e. ARM big.LITTLE).

Various links below, in fact yesterday Linaro I believe released a
qemu image that allows big.LITTLE to be emulated for dev and testing.;a=summary

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