Embedded erlang-fscons-2010

Erlang Solutions Ltd. Embedded Erlang Development environment for Embedded Erlang Fredrik Andersson, Niclas Axelsson, Fabian Bergström, Christoffer Ferm, Henrik Nordh, Gustav Simonsson Erlang Solutions Ltd. FSCONS Gothenburg, November 2010

Background • Thesis projects – Uppsala University and Erlang Solutions • Embedded Platform – OS platform for embedded devices • Embedded Erlang – Erlang on embedded devices • Erlang VM Extensions – Better hardware utilization • Framework for data sharing – Automatic data sharing Copyright 2010 Erlang Solutions, Ltd

Erlang • Development started 1987 at Ericsson Computer Science Lab. Released as opensource 1998, Ericsson is still the active maintainer • Native support for SMP and Concurrency using message passing • History in Telecom buisness. Designed with Robustness and Low Down Time in mind. • Used by among others, Facebook (Facebook chat), T-Mobile (WAP, SMS), Klarna (e-commerce) Copyright 2010 Erlang Solutions, Ltd

Henrik Nordh, Gustav Simonsson Embedded Platform

Goals • Minimal Linux system with Erlang and tools • Different versions for different purposes • Easy-to-install package • Reduce time-to-productivity for embedded Erlang developers Copyright 2010 Erlang Solutions, Ltd

The Ångström Distribution • Linux for embedded devices • Smallest image uses 11 MB disk, 16.2 MB memory • Default distribution for several devices – BeagleBoard – Gumstix – Pandora (portable gaming console) • Easy to customise with OpenEmbedded Copyright 2010 Erlang Solutions, Ltd

OpenEmbedded • Framework for building embedded Linux Distributions • Several hardware architectures • 1000+ packages pre-defined • Quite complex, but powerful • Handles dependencies, sources, configuration, cross- compilation etc. Copyright 2010 Erlang Solutions, Ltd

BusyBox • Smaller versions of UNIX utilities in a single binary • Written with size-optimisation and limited resources in mind • Very modular and configurable • Well-tested against uClibc Copyright 2010 Erlang Solutions, Ltd

Fredrik Andersson, Fabian Bergström Adapting Erlang for Embedded Systems

Goals The Virtual machine must be adapted to the limited resources of embedded systems. • Low RAM consumption – How can we reduce RAM usage? – How will this impact performance? • Low Disk usage – How can we keep disk usage low? – Performance? • Benchmarks, analysis and documentaion. Copyright 2010 Erlang Solutions, Ltd

Progress, Hardware • VM compiled for Gumstix, BeagleBoard – BeagleBoard is a prototyping platform – Gumstix is a much smaller system for commercial use • TI OMAP35x – Another thesis project for OpenGL and DSP from Erlang Copyright 2010 Erlang Solutions, Ltd

The Future • Support for more hardware – Pandaboard, utilizing the latest multicore ARM processor • Documentation for embedded Erlang development – How should you utilize Erlang tools for handling project mangement • Real world application – Small measuring nodes in larger distributed systems Copyright 2010 Erlang Solutions, Ltd

Christoffer Ferm Adding support for special purpose computing units to the Erlang VM

Niclas Axelsson Framework for Data Exchange Between Mobile Nodes

The erlang-embedded homepage

www.erlang-embedded.com • First release “Stag Beetle” is already out. – Next release is scheduled around the 16th of november • Mailinglist – erlang-embedded@googlegroups.com • Github – http://github.com/esl/erlang-embedded Copyright 2010 Erlang Solutions, Ltd

Embedded Market • 2006: 4 billion embedded processors sold worldwide • 2010: 16 billion • 2020: 40 billion • Intel estimates 15 billion will be connected in swarms or over the Internet by 2015 • ARM announced embedded multi-core CPU in okt 2009 Copyright 2010 Erlang Solutions, Ltd

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