Description
The Power Management and Thermal Control micro-conference is about all things related to saving energy and managing heat. Among other things, we care about CPU, platform and device power-management mechanisms, thermal control support, and power capping. In particular, we are interested in improving and extending thermal control support in the Linux kernel and utilizing energy-saving features of modern hardware.
The general goal is to facilitate cross-framework and cross-platform discussions in order to improve energy-awareness and thermal control in Linux.
Since the previous iteration of this micro-conference, several topics covered by it have been addressed or work is in progress to address them, including:
- Thermal zones suspend and resume relocation closer to device suspend and resume, respectively: https://lore.kernel.org/linux-pm/12871778.O9o76ZdvQC@rafael.j.wysocki/
- Step-wise thermal governor improvements: https://lore.kernel.org/linux-pm/12745610.O9o76ZdvQC@rafael.j.wysocki/
- Support for latency limits in system-wide power management idle states: https://lore.kernel.org/linux-pm/20260205-topic-lpm-pmdomain-device-constraints-v2-0-61f7be7d35ac@baylibre.com/
- Support for fine-grained sync_state in generic PM domains: https://lore.kernel.org/linux-pm/20260410104058.83748-1-ulf.hansson@linaro.org/
- Support for remote processor cooling: https://lore.kernel.org/linux-pm/20260127155722.2797783-1-gaurav.kohli@oss.qualcomm.com/ and https://lore.kernel.org/linux-pm/20260419182203.4083985-1-daniel.lezcano@oss.qualcomm.com/
The topics that we would like to cover this year include, but are not limited to:
- Support for sync_state in more subsystems beyond generic PM domains
- Remaining rough edges in kernel thermal control support
- Cooling devices and thermal zones with parents
- thermald improvements, enhancements and development process
- Latency-focused QoS for kernel devices - implementation and experiments
- A lacking policy for power/perf-management of NVMe/UFS/eMMC/SD storage
The key people we would like to participate in the session are Rafael Wysocki, Ulf Hansson, Daniel Lezcano, Lukasz Luba, Srinivas Pandruvada, and Viresh Kumar.