Hi Armin, Couldn't that slowness of getattr be fixed by making the lib objects eg use module dicts or something?
Cheers, Carl Friedrich On September 26, 2018 9:47:10 PM GMT+02:00, Armin Rigo <armin.r...@gmail.com> wrote: >Hi Dimitri, > >On Wed, 26 Sep 2018 at 21:19, Dimitri Vorona via pypy-dev ><pypy-dev@python.org> wrote: >> In my microbenchmarks its has pretty much the same call performance >as when using cffi ABI mode (dumping the functions to a shared library >first) and is around 250ns per call slower than when using API mode. > >I doubt that these microbenchmarks are relevant. But just in case, I >found out that the JIT is producing two extra instructions in the ABI >case, if you call ``lib.foobar()``. These two instructions are caused >by reading the ``foobar`` method on the ``lib`` object. If you write >instead ``foobar()``, with either ``foobar = lib.foobar`` or ``from >_x_cffi.lib import foobar`` done earlier, then the speed is exactly >the same. > > >A bientôt, > >Armin. >_______________________________________________ >pypy-dev mailing list >pypy-dev@python.org >https://mail.python.org/mailman/listinfo/pypy-dev
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