Scheduling on heterogeneous ARM SoC

John F Carr jfc at
Sun Feb 3 14:29:53 UTC 2019

Some ARM-based single board computers combine two types of Cortex processors, for example 4 A73 and 4 A 53 or 2 A72 and 4 A53.  How does FreeBSD schedule processes on these chips?  Does it use all cores at random, only the "big" or "little" set, or something more complicated?

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