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Erlang Solutions Ltd. © 1999-2012 Erlang Solutions Ltd. Hitchhiker’s Tour of the BEAM Robert Virding Principle Language Expert Erlang Solutions Ltd. © 1999-2012 Erlang Solutions Ltd. What IS the BEAM? • A virtual machine to run Erlang • Interfaces to the “outside” world - Ports and NIFs • A bunch of built-in “useful” functions - BIFs 2 © 1999-2012 Erlang Solutions Ltd. Properties of the Erlang sys

1 Scaling to Millions of Simultaneous Connections Rick Reed WhatsApp Erlang Factory SF March 30, 2012 2 About ... Joined WhatsApp in 2011 New to Erlang Background in performance of C-based systems on FreeBSD and Linux Prior work at Yahoo!, SGI 3 Overview The “good problem to have” Performance Goals Tools and Techniques Results General Findings Specific Scalability Fixes 4 The Problem A good proble

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Erlang Factory London 2011 http://www.demonware.net/ Erlang and First-Person Shooters 10s of millions of Call of Duty Black Ops fans loadtest Erlang Malcolm Dowse Demonware, Dublin Erlang Factory London 2011 http://www.demonware.net/ Overview • History of Demonware – Who are we and what we do? – Why we switched to Erlang 4-5 years ago • Our server-side architecture – How we use Erlang now • What w

These conferences are explosions of enthusiasm. They have become the meeting place for people who want to build large scale systems that never stop. Joe Armstrong (Erlang co-inventor) Organiser Erlang Solutions Ltd. is the only company of its kind totally focused on Erlang and its community, offering industry-leading research, development, training and worldwide support. This helps our customers r