AMD Begins Plumbing APCI C4 Support in the Linux Kernel for Power Savings

19 doener 1 9/16/2025, 5:37:09 PM phoronix.com ↗

Comments (1)

jeffbee · 3h ago
It would be nice to know what this actually does, to which CPUs, installed in what platform. There is only tenuous correspondence between ACPI C-states and the energy saving features of CPUs, and Intel started diverging from ACPI definitions around the time of Haswell, so a direct comparison is difficult.