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Re: About GIL Questions!

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  Re: About GIL Questions! Joshua Landau <joshua.landau.ws@gmail.com> - 2013-06-20 14:55 +0100

#48793 — Re: About GIL Questions!

On 20 June 2013 05:13, Thanatos xiao <yanxiaopei199@gmail.com> wrote:
> Hey everyone!
> Recently I see the python source code, but i still not understand about gil.
> first, why single core quicker multi-core ?

Chris Angelico touched on your other points, but not this as clearly;

Python threads run on one thread because they have to. It is not
because they're faster. Python theoretically would be faster if its
threads could run multicore, but it's really hard to make that work.

See http://pypy.org/tmdonate.html for an example of the acrobatics it
would take to get a propper GIL-free Python.

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