On Tue, 2012-11-20 at 12:39 +0000, Chris Redpath wrote:
> Hi Tixy,
> 
> I can now reproduce it with MMC too, and the times are pretty much the same 
> for me :(
> 
> There is definitely some interaction with CPUFreq, the A7s stay at a low 
> enough OPP
> that the busy threads during boot are never able to accumulate enough load to
> migrate up to an A15. Normally, it makes no sense for a thread classified as 
> 'heavy'
> at 350MHz to move to an A15 since it may very well not be a heavy thread at 
> 1GHz.
> This is the expected behaviour of the patch, to bring HMP migration in line 
> with
> cpufreq DVFS changes.
> 
> Do you always use the ondemand governor in Linaro?

That is how I was told by people at ARM to configure vexpress for
big.LITTLE MP; A15's as 'perfomance', A7's as 'ondemand'.

-- 
Tixy


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