Indeed, it's pretty cool: one of latest argument to not migrate to Python 3 is almost ready to fall.
Maybe in one moment (2018 ?), it might be interesting that to have a leaflet with the list of bias about Python 3 migration (No library support, slower...) to help to change minds about that ? Or maybe it already exist ? -- Ludovic Gasc (GMLudo) Lead Developer Architect at ALLOcloud https://be.linkedin.com/in/ludovicgasc 2017-02-07 16:59 GMT+01:00 Victor Stinner <victor.stin...@gmail.com>: > Hi, > > FYI CPython 3.7 is now faster than CPython 2.7 on most benchmarks. It > would be interesting to investigate why 12 benchmarks are still slower > to check if we missed something obvious. > > Comparison, ignoring differences smaller than 10%: > > haypo@speed-python$ python3 -m perf compare_to > 2017-01-03_11-17-2.7-5988caffbff9.json > 2017-02-06_07-15-default-e06af4027546.json -G --min-speed=10 > Slower (12): > - python_startup_no_site: 3.11 ms +- 0.02 ms -> 8.33 ms +- 0.04 ms: > 2.68x slower (+168%) > - python_startup: 6.42 ms +- 0.04 ms -> 14.1 ms +- 0.1 ms: 2.20x slower > (+120%) > - unpickle_pure_python: 384 us +- 8 us -> 670 us +- 11 us: 1.74x slower > (+74%) > - spectral_norm: 194 ms +- 1 ms -> 259 ms +- 4 ms: 1.33x slower (+33%) > - sqlite_synth: 6.70 us +- 0.11 us -> 8.49 us +- 0.16 us: 1.27x slower > (+27%) > - crypto_pyaes: 158 ms +- 1 ms -> 199 ms +- 2 ms: 1.26x slower (+26%) > - xml_etree_parse: 193 ms +- 4 ms -> 242 ms +- 5 ms: 1.25x slower (+25%) > - logging_format: 28.9 us +- 0.2 us -> 33.9 us +- 0.5 us: 1.17x slower > (+17%) > - xml_etree_iterparse: 154 ms +- 2 ms -> 179 ms +- 4 ms: 1.16x slower > (+16%) > - pickle_pure_python: 847 us +- 14 us -> 974 us +- 14 us: 1.15x slower > (+15%) > - logging_simple: 24.4 us +- 0.3 us -> 27.9 us +- 0.4 us: 1.14x slower > (+14%) > - go: 439 ms +- 3 ms -> 493 ms +- 7 ms: 1.12x slower (+12%) > > Faster (23): > - telco: 634 ms +- 5 ms -> 14.7 ms +- 0.3 ms: 43.23x faster (-98%) > - unpickle_list: 15.7 us +- 0.6 us -> 6.36 us +- 0.11 us: 2.47x faster > (-59%) > - pickle_list: 13.7 us +- 0.2 us -> 7.53 us +- 0.41 us: 1.81x faster (-45%) > - pickle: 38.8 us +- 1.5 us -> 22.1 us +- 0.3 us: 1.76x faster (-43%) > - mako: 56.0 ms +- 0.9 ms -> 32.0 ms +- 0.3 ms: 1.75x faster (-43%) > - sympy_sum: 335 ms +- 11 ms -> 192 ms +- 6 ms: 1.74x faster (-43%) > - sympy_expand: 1.65 sec +- 0.02 sec -> 949 ms +- 12 ms: 1.74x faster > (-43%) > - sympy_str: 678 ms +- 5 ms -> 425 ms +- 5 ms: 1.59x faster (-37%) > - json_loads: 89.8 us +- 1.0 us -> 56.6 us +- 0.8 us: 1.59x faster (-37%) > - scimark_lu: 483 ms +- 10 ms -> 352 ms +- 11 ms: 1.37x faster (-27%) > - xml_etree_generate: 282 ms +- 3 ms -> 208 ms +- 2 ms: 1.36x faster (-26%) > - call_method_slots: 15.3 ms +- 0.4 ms -> 11.2 ms +- 0.3 ms: 1.36x faster > (-26%) > - html5lib: 269 ms +- 7 ms -> 201 ms +- 5 ms: 1.34x faster (-25%) > - call_method_unknown: 17.5 ms +- 0.3 ms -> 13.1 ms +- 0.1 ms: 1.34x > faster (-25%) > - call_method: 15.1 ms +- 0.3 ms -> 11.7 ms +- 0.2 ms: 1.29x faster (-23%) > - sympy_integrate: 51.7 ms +- 0.6 ms -> 40.8 ms +- 0.3 ms: 1.27x faster > (-21%) > - unpack_sequence: 140 ns +- 3 ns -> 111 ns +- 1 ns: 1.26x faster (-21%) > - regex_v8: 53.7 ms +- 0.9 ms -> 43.7 ms +- 0.6 ms: 1.23x faster (-19%) > - 2to3: 763 ms +- 4 ms -> 622 ms +- 4 ms: 1.23x faster (-19%) > - pickle_dict: 69.4 us +- 1.1 us -> 56.6 us +- 4.3 us: 1.23x faster (-18%) > - call_simple: 12.7 ms +- 0.3 ms -> 10.3 ms +- 0.4 ms: 1.23x faster (-18%) > - richards: 162 ms +- 2 ms -> 145 ms +- 5 ms: 1.12x faster (-11%) > - float: 266 ms +- 2 ms -> 238 ms +- 3 ms: 1.12x faster (-10%) > > Benchmark hidden because not significant (29): (...) > Ignored benchmarks (3) of 2017-01-03_11-17-2.7-5988caffbff9.json: > hg_startup, pyflate, spambayes > > Victor > _______________________________________________ > Speed mailing list > Speed@python.org > https://mail.python.org/mailman/listinfo/speed >
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