Dart improves async and server-side performance

Dart SDK version 1.3, released by the Google Chrome team, significantly enhances the performance of asynchronous code combined with server-side I/O operations, achieving a 2x improvement that aligns it with other popular server-side runtimes. This update includes notable request-per-second improvements across three HTTP benchmarks: a 130% increase in the Hello benchmark for basic connections, nearly a 30% rise in the File benchmark for serving static content, and almost doubling the throughput in the JSON benchmark for REST app performance. Utilizing Dart on the server also allows developers to use the same language and libraries on both client and server sides, thus reducing context switching and improving code reuse. The benchmarks were conducted on a Ubuntu machine with specific hardware and Dart VM versions, and the source code for these benchmarks is available for review. The release includes resources for building web servers with Dart, and the Dartisans G+ community encourages developers to share their creations.