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On Mon, Feb 15, 2010 at 3:23 PM, Tony Finch <> wrote:
> It's worse than that. Python's GIL is implemented so badly that you often
> get worse performance by adding processors.

Truly scary!

Here's the Reddit commentary on the PDF of the slides (which is better
than going through the talk ;))

You can see some people are in denial about threading, there.  It's
like (a) if you were doing heavy computation in different threads, you
would be doing it in C and (b) most threading is to handle blocking

With the world becoming multi-core, this kind of thing matters...

steve d.