You could tune the CFS scheduler a bit, and use a lower tick frequency, but I doubt that it will make a noticeable difference in terms of powersaving, instead hampering reactivity/latency.
I also think that kernel-based power saving measures work out differently on AMD and Intel, and lot depends on ACPI implementation of the hardware.
And it would probably also involve a lot of monitoring and debugging, for example checking number of CPU wakeups (e.g.
My suggestion - and much easier to put into practice, assemble a list of powersaving measures to be used with
sysctl, either in
/etc/sysctl.d or via a tmpfile in
But - and it's a big but - TLP should handle most of those already...