Keith Adams shares HHVM insights showing how a system can become very performant if it is well tuned.
Keith Adams outlines PHP's strengths and Facebook's attempts at remedying the inconsistencies and misfeatures in the core language.
Juan Manuel and Jesús López González share their experience gathered over five years designing and implementing Speech, a DSL for programming social processes.
Jeremy Cloud discusses SOA at Twitter, approaches taken for maintaining high levels of concurrency, and briefly touches on some functional design patterns used to manage code complexity.
Nicolas Spiegelberg discusses Facebook Messages built on top of HBase, the systems involved and the scaling challenges for handling 500TB of new data per month.
Raffi Krikorian explains the architecture used by Twitter to deal with thousands of events per sec - tweets, social graph mutations, and direct messages-.
Guilherme Ottoni presents the design, implementation, and an evaluation of the HipHop compiler for PHP.
Jim Coplien believes that we have done OOP the wrong way for 40 years, and suggests an approach to reflection based on the DCI paradigm and influenced by the human society.
Chuck Rossi unveils some of the tools and processes used by Facebook for pushing new updates every day.
Leo A. Meyerovich explains how social adoption patterns can help language designers make new languages that are inherently attractive and desirable by developers.
David Mortenson details how Facebook maintained efficiency while increasing the number of engineers by reducing the n00b time sink, keeping development fast and avoiding unintended consequences.
Johan Oskarsson explains how Twitter is using Zipkin to trace a pages in order to see their execution path and to determine the time spent for loading for performance monitoring and analysis.