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Tue Sep 16 23:11:44 EDT 2003 · http://mail.python.org/pipermail/python-list/2003-September/199701.html

On Wed, Sep 17, 2003 at 05:58:55AM +0300, Harri Pesonen wrote:
> But if the reference count is negative for allocated objects, then you 
> already have a bug. I mean that the count is never negative when the 
> application works correctly. The object is already deallocated when the 
> count reaches zero, so checking for negative counts is (usually) 
> superfluous. Python gets slightly faster if you just remove this check 
> (from release version).

Have you benchmarked whether removing this check makes any significant, or
even measurable, difference to the speed of a Python program?

I'm not convinced that the benefits of this outweigh the costs.

-Andrew.

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[Python-Dev] Making python C-API thread safe (try 2)