INADA Naoki added the comment: I'm sorry, callmethod.patch is tuned other place, and causing SEGV.
method_fastcall2.patch is tuning same function (call_method() in typeobject.c), and uses trick to bypass temporary method object (same to _PyObject_GetMethod()). $ ./python -m perf timeit --compare-to `pwd`/python.default -s 'class C:' -s ' def __getitem__(self, index): return index' -s 'c=C()' 'c[0]' python.default: ..................... 155 ns +- 4 ns python: ..................... 111 ns +- 1 ns Median +- std dev: [python.default] 155 ns +- 4 ns -> [python] 111 ns +- 1 ns: 1.40x faster (-28%) ---------- Added file: http://bugs.python.org/file46606/method_fastcall2.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue29507> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
