Roger Orr solves a problem with different levels of complexity trying to answer what the complexity notation actually means and why it is important in practice.
Maxime Chevalier-Boisvert introduces adaptive compilation strategies aiming to fulfill the seemingly conflicting goals of producing more optimal machine code while reducing compilation time.
Olivier Chafik discusses how to make a practical use of reified trees in Scala, with two applications: run-time (re)compilation for extreme speed, and conversion to another language (OpenCL).
Hosted by Erik Meijer, who runs the Cloud Programmability Team at Microsoft, the panelists answer questions on C/C++ and Java performance, contrasting the virtues of native vs. managed code.
Jordan DeLong overviews the past, current and near future "good parts" of C++'s functional side through the colored lens of his biases.
Martin Thompson overviews Java's evolution, comparing it with C++'s, discussing the challenges of pushing the performance limits.
David Pollak presents Lift's design and how the same design decisions were applied to Clojure/ClojureScript/AngularJS. Lift is a web framework with support for server-push.
Brenton Ashworth introduces the Pedestal application library as a way to build rich collaborative applications in Clojure and ClojureScript.
Keith Adams shares HHVM insights showing how a system can become very performant if it is well tuned.
Guillaume Laforge introduces some of the new features in Groovy 2.1: better Invoke Dynamic, DSL-related annotation, grouping annotations, compiler customization.