On Mon, Aug 8, 2016 at 3:25 PM, Victor Stinner <victor.stin...@gmail.com> wrote:
> tl;dr I found a way to make CPython 3.6 faster and I validated that > there is no performance regression. But is there a performance improvement? > I'm requesting approval of core > developers to start pushing changes. > > In 2014 during a lunch at Pycon, Larry Hasting told me that he would > like to get rid of temporary tuples to call functions in Python. In > Python, positional arguments are passed as a tuple to C functions: > "PyObject *args". Larry wrote Argument Clinic which gives more control > on how C functions are called. But I guess that Larry didn't have time > to finish his implementation, since he didn't publish a patch. > Hm, I agree that those tuples are probably expensive. I recall that IronPython boasted faster Python calls by doing something closer to the platform (in their case I'm guessing C# or the CLR :-). Is this perhaps something that could wait until the Core devs sprint in a few weeks? (I presume you're coming?!) -- --Guido van Rossum (python.org/~guido)
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