Вопрос по python – Почему Python намного медленнее в Windows?

12

Error: User Rate Limit Exceeded

Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from test import pystone
>>> for i in range(0,10):
...   pystone.pystones()
...
(1.636334799754252, 30556.094026423627)
(2.1157907919853756, 23631.82607155689)
(2.5324817108003685, 19743.479207278437)
(2.541626695533182, 19672.4405231788)
(2.536022267835051, 19715.915208695682)
(2.540327088340973, 19682.50475676099)
(2.544761766911506, 19648.20465716261)
(2.540296805235016, 19682.739393664764)
(2.533851636391205, 19732.804905346253)
(2.536483186973612, 19712.3325148696)

Error: User Rate Limit Exceeded

Python 2.7.2+ (default, Oct  4 2011, 20:03:08) 
[GCC 4.6.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> for i in range(0,10):
...   pystone.pystones()
... 
(1.75, 28571.428571428572)
(1.17, 42735.042735042734)
(1.6600000000000001, 30120.48192771084)
(1.8399999999999999, 27173.913043478264)
(1.8200000000000003, 27472.52747252747)
(1.8099999999999987, 27624.30939226521)
(1.3099999999999987, 38167.938931297744)
(1.7800000000000011, 28089.88764044942)
(1.8200000000000038, 27472.527472527414)
(1.490000000000002, 33557.04697986573)

Error: User Rate Limit Exceeded

Error: User Rate Limit Exceeded

More details Windows platform Win7x64 32 bit python running on both platforms 32 bit linux VM running the windows platform in VMWare
Error: User Rate Limit Exceededstackoverflow.com/questions/1842798/… Roland Smith
Error: User Rate Limit Exceeded agf
Error: User Rate Limit Exceededruns Ignacio Vazquez-Abrams
Error: User Rate Limit Exceeded K Mehta

Ваш Ответ

4   ответа
3

Error: User Rate Limit Exceeded boatcoder
6

windows defender.

Error: User Rate Limit Exceeded
8

You're using different versions of Python. "2.7.2+" indicates that your linux Python was built from a version control checkout rather than a release.

They were compiled with different compilers (and conceivably meaningfully different optimization levels).

You haven't mentioned reproducing this much. It's conceivable it was a fluke if you haven't.

Your VM might be timing inaccurately.

You're linking different implementations of Python's dependencies, notably libc as Ignacio Vazquez-Abrams points out.

I don't know what pystone's actual benchmarks are like, but many things work differently--things like unicode handling or disk IO could be system-dependent factors.

Error: User Rate Limit Exceeded boatcoder
0

import os
import mimetypes #mimetypes gets imported later in dep chain

if __name__ == "__main__":
   # stub this out, so registry db wont ever be read, not needed
   mimetypes._winreg = None

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