New submission from Raymond Hettinger <raymond.hettin...@gmail.com>:
$ python3.9 -m timeit -r 11 -s 'class A: pass' -s 'A.m = lambda s: None' -s 'a = A()' 'a.m; a.m; a.m; a.m; a.m' 1000000 loops, best of 11: 230 nsec per loop $ python3.8 -m timeit -r 11 -s 'class A: pass' -s 'A.m = lambda s: None' -s 'a = A()' 'a.m; a.m; a.m; a.m; a.m' 2000000 loops, best of 11: 149 nsec per loop $ python3.7 -m timeit -r 11 -s 'class A: pass' -s 'A.m = lambda s: None' -s 'a = A()' 'a.m; a.m; a.m; a.m; a.m' 2000000 loops, best of 11: 159 nsec per loop $ python3.6 -m timeit -r 11 -s 'class A: pass' -s 'A.m = lambda s: None' -s 'a = A()' 'a.m; a.m; a.m; a.m; a.m' 10000000 loops, best of 11: 0.159 usec per loop Timings made using the recent released python.org macOS 64-bit builds. ---------- components: Interpreter Core messages: 358781 nosy: rhettinger priority: normal severity: normal status: open title: Performance regression for making bound methods type: performance versions: Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39117> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
