Raymond Hettinger <raymond.hettin...@gmail.com> added the comment: Here's what the output looks like (here am comparing a fresh Py3.8 with Clang versus the same build with GCC-8):
$ make distclean && ./configure && make $ py Tools/scripts/var_access_benchmark.py Speed of different kinds of variable accesses: 4.2 μs read_local 4.7 μs read_nonlocal 13.7 μs read_global 18.5 μs read_builtin 18.2 μs read_classvar 26.8 μs read_instancevar 20.3 μs read_instancevar_slots 19.1 μs read_namedtuple 26.9 μs read_boundmethod 4.5 μs write_local 4.8 μs write_nonlocal 18.8 μs write_global 89.9 μs write_classvar 37.1 μs write_instancevar 25.7 μs write_instancevar_slots 0.3 μs loop_overhead $ make distclean && ./configure CC=gcc-8 && make $ py Tools/scripts/var_access_benchmark.py Speed of different kinds of variable accesses: 4.0 μs read_local 4.2 μs read_nonlocal 11.4 μs read_global 16.3 μs read_builtin 16.4 μs read_classvar 24.8 μs read_instancevar 20.1 μs read_instancevar_slots 16.8 μs read_namedtuple 23.2 μs read_boundmethod 4.3 μs write_local 4.5 μs write_nonlocal 15.4 μs write_global 89.4 μs write_classvar 33.5 μs write_instancevar 24.5 μs write_instancevar_slots 0.3 μs loop_overhead ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35884> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
