The introduction of lambdas in Java 8 completes the slate of statically-typed, mainstream languages with both object-oriented and functional features. The main motivation for lambdas in Java has been to facilitate stream-based declarative APIs, and, therefore, easier parallelism. In this paper, we evaluate the performance impact of lambda abstraction employed in stream processing, for a variety...

Pittsburgh, the Iron City, gives me the blues. Cleaner and quieter than when tall smokestacks filled its valleys with yellow-brown haze, the city now stands as a nostalgic reminder of salty politicians, tough tycoons, rough mill workers, and fixed capital. Such heavy industrial cities of another age inspired the bottom-up social history of my youth, with its reductive assignment of interests, o...