Scheduler-driven CPU frequency selection
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One Line Summary
Discuss current design and gather feedback on a cpu capacity-based frequency scaling policy.
Discuss design of a scheduler-driven cpufreq policy based on recent patches introducing cpufreq_sched.c and gather feedback. Includes changes to scheduler and CPUfreq subsystem. If time permits, wander into the weeds regarding multi-scheduler class constraints (e.g. deadline scheduler bandwidth) and peripheral device constraints (e.g. DDR controller driver increasing CPU clock speed).
power management, scheduler, cpufreq, energy aware scheduling, dvfs
Linux kernel hacker since 2008, I focus on upstream power management frameworks. I currently maintain the clock framework. At Linaro I am involved in integrating CPUfreq with the scheduler.