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Date: Sat, 16 May 2015 01:06:58 +1000
Subject: Re: Building CPython
From: Chris Angelico <rosuav@gmail.com>
Cc: Python <python-list@python.org>
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Xref: csiph.com comp.lang.python:90681

On Sat, May 16, 2015 at 1:00 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
> On Fri, May 15, 2015 at 6:43 AM, Steven D'Aprano
> <steve+comp.lang.python@pearwood.info> wrote:
>> How much time would it save? Probably very little. After all, unless the
>> method call itself did bugger-all work, the time to create the method
>> object is probably insignificant. But it's a possible optimization.
>
> An interesting alternative (if it's not already being done) might be
> to maintain a limited free-list of method objects, removing the need
> to allocate memory for one before filling it in with data.

It is already done. Some stats were posted recently to python-dev, and
(if I read them correctly) method objects are among the free-list
types. So the actual memory (de)allocations are optimized, and all
that's left is setting a couple of pointers to select an object and a
function.

ChrisA