> > > > Actually I think the value set in the OEM BIOS for state2 from LPI looks bogus > > too. > > It should have been 36us. > > > > @Liang, Prike and @Deucher, Alexander you have some more history on this > > than I do. > > I think they were just bogus, at least in the initial cases where we saw this. > In processor_idle.c target residency is calculated by exit latency multiplied by a latency factor parameter (2 by default). So when these systems have the buggy _CST C2 value of 400, that's where the 800 comes from for residency, not _LPI.
