colorfulappl <colorfula...@qq.com> added the comment:
I wrote some microbenchs. Patch: https://github.com/python/cpython/pull/30312/commits/b68176d081e19a3cedbaf2cdb31ecd7690421ec8 Environment: macOS 12.1 clang 13.0.0 configure with --enable-optimizations Result on microbench: ``` +--------------------------------------------+-------------------------+------------------------+ | Benchmark | ./opt_baseline/res.json | ./opt_patched/res.json | +============================================+=========================+========================+ | print(a, b, c) | 917 ns | 820 ns: 1.12x faster | +--------------------------------------------+-------------------------+------------------------+ | print(a, b, c, *v) | 1.56 us | 1.62 us: 1.04x slower | +--------------------------------------------+-------------------------+------------------------+ | print(a, sep='', file=stdout) | 376 ns | 295 ns: 1.27x faster | +--------------------------------------------+-------------------------+------------------------+ | print(*v, sep='', flush=True, file=stdout) | 2.02 us | 1.94 us: 1.04x faster | +--------------------------------------------+-------------------------+------------------------+ | Geometric mean | (ref) | 1.05x faster | +--------------------------------------------+-------------------------+------------------------+ Benchmark hidden because not significant (3): print(a), print(a, sep='', flush=True, file=stdout), print(a, b, c, *v, sep='', flush=True, file=stdout) ``` ---------- Added file: https://bugs.python.org/file50533/bench-print.py _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46212> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
