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Friday, October 12 • 1:45pm - 2:25pm
The big.LITTLE switcher - Kisoo Yu, Samsung Electronics

Nowadays low power consumption and high performance are both essential for application processors in mobile devices. ARM's bit.LITTLE processing connects high performance cores and energy efficient cores in a manner that extends battery life by selecting the right processor to use depending on the task. There are three major management methods for this big.LITTLE structure: Task Migration, In-kernel Switching, and MP Use model. We have applied Task Migration and In-kernel Switching to our Exynos_bL processor and have performed research to achieve an optimum usage model.

In this talk, we will introduce our research on Task Migration and In-kernel Switcher. We have researched to find empirical optimum parameters to balance the power consumption and performance of each solution, investigated the potential need for modifications to the scheduler, and explored the application of In-kernel Switcher to asynchronous big.LITTLE structures.

 


Speakers
KY

Kisoo Yu

Senior Engineer of Software Solution for Application Processor, Samsung Electronics
Kisoo is a Senior Engineer of SW Solution for Application Processor at Samsung Electonics. He has been working on linux kernel development, specially focused on power management frameworks.


Friday October 12, 2012 1:45pm - 2:25pm
Grand Ballroom B JW Marriott Hotel