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Wednesday, July 1 • 1:50pm - 2:40pm
Linux Kernel: Stop Over-Cooling! - Thara Gopinath, Linaro Inc. & Ram Chandrasekar, Qualcomm Innovation Center Inc.

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Everyone knows why embedded SoCs should not overheat and why software has to monitor for rising temperatures and implement mitigation frameworks. But, should software monitor for falling temperatures as well? What if there are hardware limitations that impedes SoC operations at lower temperatures?

This presentation aims to give an overview of some hardware requirements in modern
SoCs, such as Qualcomm Snapdragon processors that call for monitoring of falling temperatures and corresponding mitigation needs. Further, the presentation explores how well suited(or not) the existing Linux Kernel thermal management frameworks are to handle this requirement. The presentation identifies the gaps in the existing frameworks and provides a first-pass solution to these gaps. Lastly the presentation discusses the status of few of these solutions that are already posted in the respective mailing lists.

Speakers
TG

Thara Gopinath

Senior Engineer, Linaro Inc
Thara Gopinath has been working in power management solutions for embedded systems since 2009. She is currently employed with Linaro and her work mainly focuses on scheduler and thermal management frameworks in Linux Kernel. Her latest work includes introducing thermal pressure solution... Read More →
RC

Ram Chandrasekar

Staff Software engineer, Qualcomm Innovation Center Inc
Ram is a member of the Power and thermal software team in Qualcomm. He has been working on limits software solution for Qualcomm chipsets for 6 years. He is the principle architect of Linux limits software solution for all Qualcomm chipset.


Wednesday July 1, 2020 1:50pm - 2:40pm CDT
ELC Theater A