STINNER Victor added the comment: > Result of the benchmark suite: > > slower (3): > > * raytrace: 1.06x slower > * etree_parse: 1.03x slower > * normal_startup: 1.02x slower
Hum, I recompiled the patched Python, again with PGO+LTO, and ran the same benchmark with the same command. In short, I replayed exaclty the same scenario. And... Only raytrace remains slower, etree_parse and normal_startup moved to the "not significant" list. The difference in the benchmark result doesn't come from the benchmark. For example, I ran gain the normal_startup benchmark 3 times: I got the same result 3 times. ### normal_startup ### Avg: 0.295168 +/- 0.000991 -> 0.294926 +/- 0.00048: 1.00x faster Not significant ### normal_startup ### Avg: 0.294871 +/- 0.000606 -> 0.294883 +/- 0.00072: 1.00x slower Not significant ### normal_startup ### Avg: 0.295096 +/- 0.000706 -> 0.294967 +/- 0.00068: 1.00x faster Not significant IMHO the difference comes from the data collected by PGO. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26814> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
