On Wed, Jun 19, 2024 at 07:09:35PM +0200, Rafael J. Wysocki wrote: > On Wed, Jun 19, 2024 at 6:33 AM Aaron Rainbolt <arainbolt@xxxxxxxxxx> wrote: > > > > acpi: Allow ignoring _OSC CPPC v2 bit via kernel parameter > > > > The _OSC is supposed to contain a bit indicating whether the hardware > > supports CPPC v2 or not. This bit is not always set, causing CPPC v2 to > > be considered absent. This results in severe single-core performance > > issues with the EEVDF scheduler on heterogenous-core Intel processors. > > While some things can be affected by this, I don't immediately see a > connection between CPPC v2, Intel hybrid processors and EEVDF. > > In particular, why would EEVDF alone be affected? > > Care to explain this?
