In this presentation from the JVM Language Summit 2009, Allison Randal discusses what it means for a language to be dynamic, the spectrum between static and dynamic languages, dynamic typing, dynamic dispatch, introspection, dynamic compilation, dynamic loading, and a summary of the main differences between static and dynamic.
In this presentation from the JVM Languages Summit 2009, Cliff Click discusses the Von Neumann architecture, CISC vs RISC, the rise of multicore, Instruction-Level Parallelism (ILP), pipelining, out-of-order dispatch, static vs dynamic ILP, performance impact of cache misses, memory performance, memory vs CPU caching, examples of memory/CPU cache interaction, and tips for improving performance.
Jonas Bonér talks about Scala: using OO and the type system to create reusable components, using closures, high-order functions, immutability to create coherent and deterministic code, using Actors to create concurrent and event-driven systems, and using ORM, AOP, DI and Testing with Scala.
In this presentation recorded at QCon London 2009, after a short introduction to DSLs, Scott Davis plays with the keyboard showing how to approach the creation of a DSL by typing working snippets of Groovy code that get executed in front of the audience.
In this presentation recorded at QCon London 2008, Ola Bini talks about the current status of the JVM regarding languages running on top of it and the need to evolve in order to support dynamic languages.
In this presentation from the JVM Languages Summit 2008, Neal Gafter discusses closures on the JVM. Topics covered include the JVM libraries, the challenges of running other languages on the JVM, language-specific wrapper/shim libraries, ways of making the JVM more language-friendly, whether lambda expressions are too hard, the history of closures, and forking the JVM to support closures.
In this presentation from the JVM Languages Summit 2008, David Chase discusses Fortress, a Fortran-based highly parallel programming language. Topics covered include the origins of Fortress, mathematical syntax, the challenges of running on the JVM, parsing, work stealing, transactions, continuations, problems with blocking, the type system, type mapping, multiple dispatch and profiling.
In this presentation from the JVM Languages Summit 2008, Charles Nutter discusses bringing JRuby to the JVM, why Ruby is hard to implement, JIT compilation, precompilation, core Ruby implementation, Java library method access, method call semantics, scopes, open classes, heap-based frames, library challenges, strings, regexps, I/O, green threads, POSIX features, C lib support and future plans.
In this presentation from the JVM Languages Summit 2008, John Pampuch discusses the HotSpot compiler, the history of Java performance, HotSpot development philosophies and challenges, optimization, inlining, virtual methods, loop unrolling, constant folding, escape analysis, synchronization improvements, JVM library improvements, processor-specific optimizations, and tips for better performance.
In this presentation from the JVM Languages Summit 2008, Rich Hickey discusses Clojure, which is an implementation of Lisp. Topics covered include Clojure features and syntax, example code, interoperation with Java, Clojure and functional programming, persistent data structures, concurrency semantics, references, transactions, software transactional memory, agents, implementation and pain points.
In this presentation from the JVM Languages Summit 2008, Bernd Mathiske discusses the Maxine open source research VM, Java compatibility, swapping out major VM components, Maxine research areas, meta-circular VM design, assembler usage, how Objects are handled, the common Pointer/Object interface, code examples, optimizing compiler features, snippets, bytecode generation, JNI and JIT.
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