Published at LXer:

Two traditionally proprietary companies made open source releases recently: Facebook released a Python-based web server and application framework called Tornado, and Apple released a thread-pool management system called Grand Central Dispatch. It is not the first open source code release for either company, but both projects are worth examining. Tornado is designed to suit specific types of web applications and is reportedly very fast, while Grand Central Dispatch may cause some developers to re-think task-parallelism.

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