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Wednesday, March 25 • 1:40pm - 2:30pm
Doing big.LITTLE right: little and Big Obstacles - Vitaly Wool & Vlad Rezki, Softprise Consulting OU

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The ARM's big.LITTLE technology implements a smart idea of combining high-performance cores are with low power ones to deliver peak-performance capacity at a lower average power cost. However, as big.LITTLE effectively is an asymmetrical MP, mainline SMP-oriented kernel "fair" scheduler can't take advantage of it. This talk will show what should be changed in the mainline scheduler to fit big.LITTLE architecture.

Multiple attempts were carried out to come up with the improvements implementing these changes, with the most notable coming from Codeaurora and Linaro/ARM. This talk will explain these implementations specifying their differences and similarities, and provide power and performance comparisons for both.


Vlad Rezki

Senior Embedded Software Engineer at Softprise Consulting OU. Spent more than 8 years working in embedded software area with focus on telecommunication, automotive, automatic control systems and mobile. Earned M.Sc. as a Software Engineer in Belarus in 2009, worked first as a Linux... Read More →

Vitaly Wool

Staff Consultant, Interstate Labs / Konsulko Group
Vitaly Wool, Senior Developer and Linux enthusiast, graduated M.Sc. in Computer Science from St. Petersburg State Univ. in 2002, worked for starters with real-time OSes as VxWorks and RTEMS mostly for PowerPC platforms. Vitaly moved to Moscow in 2003 where he started to work on embedded... Read More →

Wednesday March 25, 2015 1:40pm - 2:30pm PDT
Ballroom Salon 3

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