[Python-Dev] The memo of pickle
Guido van Rossum
Fri, 09 Aug 2002 10:03:40 -0400
> 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/)