On Mon, Jun 26, 2017 at 7:38 AM, Nicholas Piggin <npig...@gmail.com> wrote: > The menu driver does not allow state0 to be disabled completely. > If it is disabled but other enabled states don't meet latency > requirements, it is still used. > > Fix this by starting with the first enabled idle state. Fall back > to state 0 if no idle states are enabled (arguably this should be > -EINVAL if it is attempted, but this is the minimal fix). > > Acked-by: Gautham R. Shenoy <e...@linux.vnet.ibm.com> > Signed-off-by: Nicholas Piggin <npig...@gmail.com> > --- > > Hi Rafael,
Hi Nick, > This patch is helpful when measuring power draw of polling, > latency cost of idle states, etc. Please consider merging if > you agree. I have a slight concern about x86 where state0 is mapped to polling and the way it is used in general stems from that. Still, I guess we can try and see if this causes any problems to happen in practice, so I'm going to apply it. Thanks, Rafael
