Speaker
Srinivas Pandruvada
Description
This presentation explores how Intel HFI can be integrated with a sched_ext to improve task placement and power-performance efficiency on hybrid Intel systems. HFI provides real-time hardware guidance on which CPUs are better suited for performance- or efficiency-oriented work, or which to avoid, while sched_ext like LAVD supplies an adaptive scheduling framework capable of using that guidance at runtime. By converting HFI output into scheduler-readable CPU hints, the system can bias wakeup placement, avoid degraded cores, and better match task type to CPU capability without hard pinning or manual tuning.