passing intel_pstate=disable_hwp on the kernel commandline causes the
kernel to scale the Core i5-8250U down to 1.6 GHz in performance mode,
but that's still a bit off from the 900 MHz it scales down to in
powersave mode.
I believe Windows also does not run the CPUs in performance mode by
default
@colin-king @juliank
It feels to me that the oem flavour should default to
(powersave/ondemand), as it is more-or-less laptop kernel flavour.
I feel like generic kernel flavour should remain on performance.
I feel like we should have a unit, that for chassis=laptop turns on
The choice was made from running analysis on a wide range of Intel
machines, old and new. We are trying to select the optimal choice for a
wide range of CPUs for a wide range of use cases. Generally speaking,
the intel-pstate governor has deeper understanding of the processor
features and can
@Colin: I agree with all of that.
Our kernel-side default is not powersave, but performance, across
generic and oem, at the very least:
$ grep CPU_FREQ_DEFAULT_GOV_.*=y /boot/config-5.*
/boot/config-5.4.0-26-generic:CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
