AMD Begins Plumbing APCI C4 Support in the Linux Kernel for Power Savings
26 points by doener
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by jeffbee
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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.
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