Linux support for ARM big.LITTLE
Posted Feb 18, 2012 11:09 UTC (Sat) by khim
In reply to: Linux support for ARM big.LITTLE
Parent article: Linux support for ARM big.LITTLE
it doesn't matter if you are a 12 core Intel x86 monster, or a much smaller ARM chip.
Well, sure. But differences between interactive tasks and batch processing modes are acute. With batch processing you are optimizing time for the [relatively] long process. With interactive tasks you optimize work in your tiny 16ms timeslice. It makes no sense to produce result in 5ms (and pay for it) but if you spent 20ms then you are screwed.
Today the difference is not so acute because the most power-hungry part of the smartphone or tablet is LCD/OLED display. But if/when technologies like Mirasol will be adopted these decisions will suddenly start producing huge differences in the battery life.
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