Apple-like QoS for processes proposed for Linux

8 hours ago

Sched QoS is a new Linux initiative for user-space assisted scheduling, inspired by Apple's QoS classes.
It classifies tasks into categories like user interactive, user initiative, utility, or background to optimize power and performance.
Administrators can configure applications with QoS hints to align with specific power-performance expectations.
Initial results show a more responsive experience and potential throughput gains, but some bugs cause latency issues.
The project is in alpha (v0.1), with ongoing work on multi-modal wakeup paths, load balancing, and rampup multipliers for better perf/watt.
Resources include a Linux kernel mailing list post and a presentation from the Linux Plumbers Conference in Tokyo.

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