2013/2/19 Maciej Fijalkowski <fij...@gmail.com> > On Tue, Feb 19, 2013 at 2:09 PM, Eleytherios Stamatogiannakis > <est...@gmail.com> wrote: > > > > So the main culprit of PyPy's slowdown is 'rU' option in open. > > > > Thanks for looking into it. > > Is this yet-another-fault-of-streamio?
Not quite. Even a implementation based on fread() would need to care of these universal newlines and tune the usage of the various buffers. BTW, I tried io.open, and surprisingly the "rb" mode is twice slower as "rU". I guess that's because our io.Buffered is missing a dedicated "readline" method. -- Amaury Forgeot d'Arc
_______________________________________________ pypy-dev mailing list pypy-dev@python.org http://mail.python.org/mailman/listinfo/pypy-dev
