Gregory P. Smith <g...@krypto.org> added the comment:
If I compile my own 3.7.5 and 3.8.0 both with --enable-optimizations, I am unable to reproduce this. greg@zoonaut:~/sandbox/python/cpython/lh$ ../b37/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 75.92 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b38/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 84.53 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b37/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 79.90 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b38/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 84.19 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b37/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 86.49 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b37/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 83.95 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b38/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 78.85 greg@zoonaut:~/sandbox/python/cpython/lh$ ../b38/python permutations2x2 --max_depth 6 | egrep "^# Total_Time" # Total_Time: 78.49 which if you add up the 3.7 and 3.8 times over their four runs each, they both come out to ~81 seconds average. So I don't see a regression. I'd say that benchmark is unstable. Also, making sure you're comparing identically prepared builds of cpython rather than something made by different distro package owners. ---------- nosy: +gregory.p.smith -inada.naoki resolution: not a bug -> stage: resolved -> status: closed -> open _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue38477> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
