Re: [Python-Dev] The memo of pickle

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/)