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AMD Hardware Feedback Interface "HFI" Driver Updated For Heterogeneous CPUs
Back in August I wrote about AMD beginning work on a new Linux driver to help with heterogeneous core CPUs
Back in August I wrote about AMD beginning work on a new Linux driver to help with heterogeneous core CPUs. Mario Limonciello who has taken over work on this AMD HFI Linux driver explains of its operation and intent:"The AMD Heterogeneous core design and Hardware Feedback Interface (HFI) provide behavioral classification and a dynamically updated ranking table for the scheduler to use when choosing cores for tasks. As for the impact, enabling the AMD HFI driver on heterogeneous core CPUs should be good for a 2~5% performance improvement across different benchmarks.
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