On Wed, 18 Jul 2018, Johannes Thumshirn wrote: > On Wed, Jul 18, 2018 at 10:12:37AM -0400, Alan Stern wrote: > > As one extra reminder... People who care about extreme performance can > > perfectly well disable CONFIG_PM in their kernels. That should remove > > any overhead due to runtime PM. > > Yes but how likely is this for people who are running their data > center with a distribution kernel. Strictly speaking, that's a nonsense question. People who run distribution kernels are 100% unlikely to change the kernel configuration, by definition. That's not the point. If people really care about getting the utmost performance, to the extent that they resent the minimal overhead required for runtime PM, then they should not be running distribution kernels in the first place. Alan Stern
