On Sun, Oct 19, 2014 at 11:39:23PM -0700, Neil Zhang wrote: >> How much noise is this going to cause on a big/little system that >> constantly hot unplug/plugs processors all of the time? > > Can you explain more what kind of noise will be introduced on a big/little > system?
Have you tested this on such a machine? > As I know IKS on arm will use cpu_suspend way to power down a core. Are you sure that it also doesn't use that same functionality to drop a processor to save power? Why do you need/want this notification? What are you going to do with this information that you don't already have? thanks, greg k-h -- 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/