GIL detector

[Steven D'Aprano]

Coincidentally after reading Armin Ronacher's criticism of the GIL in
Python:

http://lucumr.pocoo.org/2014/8/16/the-python-i-would-like-to-see/

I stumbled across this "GIL detector" script:

http://yuvalg.com/blog/2011/08/09/the-gil-detector/

Running it on a couple of my systems, I get these figures:

CPython 2.7: 0.8/2 cores
CPython 3.3: 1.0/2 cores

Jython 2.5:  2.3/4 cores
CPython 2.6: 0.7/4 cores
CPython 3.3: 0.7/4 cores

With IronPython, the script raise an exception.

The day will come that even the cheapest, meanest entry-level PC will come
standard with 8 cores and the GIL will just be an embarrassment, but today
is not that day. I wonder whether Ruby programmers are as obsessive about
Ruby's GIL?



-- 
Steven