[Python-Dev] xreadlines : readlines :: xrange : range

[Tim Peters]

[Tim]
>      5   uncertain, but evidence suggests much of it due to MS
>              malloc/realloc (Perl does its own memory mgmt)

[NeilS]
> Have you tried pymalloc?

Not recently, and don't expect to find time for it this week.  IIRC,
Vladimir did get significant speedups-- lo those many years ago! --when he
tried it on Windows, though.  Maybe (or maybe not) that was due to
exploiting the global lock (i.e., exploiting that pymalloc didn't need to do
its own serialization, when called from the Python core).