[Python-Dev] The memo of pickle

[Guido van Rossum]

> One of the things I mentioned on the c.l.py thread is the
> Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS calls around every
> fwrite() call.  I looked into it, using Penrose's test case, and found
> that the locking alone added 25% overhead.  I expect the layer or two
> of C function calls above fwrite() add overhead.  I also expect that
> calling fwrite() repeatedly for very small strings is inefficient.
> 
> If I were to suggest a cPickle project, it would be an efficient
> internal buffering scheme.

Who's got time?  It's fast enough for Zope. :-)

--Guido van Rossum (home page: http://www.python.org/~guido/)