| 摘要 |
A system filter is maintained to track which single-thread cores [or which multi-threaded logical CPUs] are in a low-latency power state. For at least one embodiment, low-latency power states include an active C0 state and a low-latency C1 idle state. The system filter is used to filter out any cores/thread contexts in a high-latency state during task scheduling. This may be accomplished by filtering the OS-provided task affinity mask by the system filter. As a result, tasks are scheduled only on available cores/logical CPUs that are in an active or low-latency idle state. Other embodiments are described and claimed.
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