[PATCH 00/16] big.LITTLE low-level CPU and cluster power management

Pavel Machek pavel at ucw.cz
Thu Mar 7 03:27:21 EST 2013


Hi!

> Review comments are welcome!
> 
> [*] General design information on the b.L switcher can be found here:
>     http://lwn.net/Articles/481055/
>     However the code is only accessible to Linaro members for the
>     time being.

Assuming the lwn article is accurate:

Hmm. So we have hw capable of running 8 cores, and then we introduce strange
switching code, because "scheduler is not ready". Sounds like a bad idea.

I'd say:

* expose all 8 cores.

* as long as scheduler is not ready, you can offline "the other" set of cores...
	/sys/.../cpu/..../online

That way, I suspect scheduler will be fixed rather quickly.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html



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