pickle.load() extremely slow performance

[Terry Reedy]

Carl Banks wrote:
>
> The slow performance is most likely due to the poor performance of
> Python 3's IO, which is caused by (among other things) bad buffering
> strategy.  It's a Python 3 growing pain, and is being rewritten.
> Python 3.1 should be must faster but it's not been released yet.

3.1a1 is out and I believe it has the io improvements.