On 09.02.2012 22:05, Nick Coghlan wrote: > Have you even *tried* concurrent.futures > (http://docs.python.org/py3k/library/concurrent.futures)? Or the 2.x > backport on PyPI (http://pypi.python.org/pypi/futures)? Multiprocessing is fine, but is uses pickle for IPC and this is inefficient. We need unpickled, type-specialized queues. Or a queue that has the interface of a binary file. Sturla