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The Embedded Linux Conference (ELC) is the premier vendor-neutral technical conference for companies and developers using Linux in embedded products. This conference, now in its 9th year, has the largest collection of sessions dedicated exclusively to embedded Linux and embedded Linux developers. ELC is embedded Linux experts talking about solutions to your embedded Linux problems. ELC consists of 3 days of presentations, tutorials and Bird-of-a-Feather sessions. There are over 50 sessions to choose from, on a wide variety of topics.

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Friday, February 22 • 12:15pm - 1:05pm
Adventures in (simulated) Asymmetric Scheduling - Pantelis Antoniou, Antoniou Consulting

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Asymmetric processing, spearheaded by ARM's big.LITTLE architecture, has been touted as a method for solving both the power & performance problem of mobile devices. This architecture requires changes to core scheduling concepts, which are extremely difficult to debug and diagnose, especially since existing tools do not capture useful data for evaluating such a system. A brief overview of the proposed scheduling changes will be presented, with major focus on Paul Turner's load average patches. Methods of simulating an asymmetric system will be described. Additionally a portable process workload capturing method, based on perf, will be presented, i.e. one can capture traces from an Android based system and run it on a standard Linux box.

The audience will comprise of kernel scheduler hackers, mobile device developers, and anyone interested in the challenges such a paradigm shift brings.


Pantelis Antoniou

Linux Kernal Developer, CircuitCo
Pantelis Antoniou has been an active Linux kernel developer for more than 12 years. Working as a jack of all trades have helped bring to market a number of Linux based products, first working as an employee of a Telecom company, and then as a consultant working first for Embedded Alley, then Mentor, Texas Instruments, and now for CircuitCo, makers of the beagle family of boards. Pantelis is currently working on many areas of upstreaming beaglebone functionality. In particular upstreaming...
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