Awesome ;-) -- Ludovic Gasc (GMLudo) Lead Developer Architect at ALLOcloud https://be.linkedin.com/in/ludovicgasc
2017-02-19 7:45 GMT+01:00 INADA Naoki <songofaca...@gmail.com>: > On Wed, Feb 8, 2017 at 12:59 AM, Victor Stinner > <victor.stin...@gmail.com> wrote: > > 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%) > > > The top two slower benchmark is startup. There are some unavoidable > reasons (io, importlib, > and more rich types based on abc). > But I sent two pull requests reduce cost of site.py. > > * http://bugs.python.org/issue29585 > * http://bugs.python.org/issue29592 > > If they are merged, (python_startup - python_startup_no_site) will be > very close to Python 2.7. > > For more optimization, I think we need to write some function in C for > importlib. > _______________________________________________ > Speed mailing list > Speed@python.org > https://mail.python.org/mailman/listinfo/speed >
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