On Wed, Dec 15, 2021 at 4:03 AM Victor Stinner <vstin...@python.org> wrote: > The last time I saw a benchmark on immortal object, it was clearly 10% > slower overall on the pyperformance benchmark suite. That's a major > slowdown.
Yes, I plan on benchmarking the change as soon as we can run pyperformance on main. > > * abandon all hope > > I wrote https://bugs.python.org/issue39511 and > https://github.com/python/cpython/pull/18301 to have per-interpreter > None, True and False singletons. Yeah, I took a similar approach in the alternative to immortal objects that I prototyped. > By the way, I made the _Py_IDENTIFIER() API and _PyUnicode_FromId() > compatible with subinterpreters in Python 3.10. This change caused a > subtle regression when using subintepreters (because an optimization > made on an assumption on interned strings which is no longer true). > The fix is trivial but I didn't wrote it yet: > https://bugs.python.org/issue46006 FYI, I'm looking into statically allocating (and initializing) all the string objects currently using _Py_IDENTIFIER(). -eric _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/3XG4QY77MCRXEFUCJHB44RRIHFEM4MDD/ Code of Conduct: http://python.org/psf/codeofconduct/
