On Wed, Oct 08, 2014 at 01:38:40PM +0200, Vincent Guittot wrote: > I have in mind some system where the max achievable freq of a core > depends of how many cores are running simultaneously because of some > HW constraint like max current. In this case, the CPU might not reach > max frequency even with an always running task. > Then, beside frequency scaling, their is the uarch invariance that is > introduced by patch 4 that will generate similar behavior of the load.
This is a 'common' issue. x86 and powerpc also suffer this. It can be the result of either thermal or power thresholds. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
