Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #58849

Code with random module faster on the vm than the vm host...

Show key headers only | View raw

Here's the code:

from random import random
from time import clock

s = clock()

for i in (1, 2, 3, 6, 8):
     M = 0
     N = 10**i

     for n in xrange(N):
         r = random()
         if 0.5 < r < 0.6:
             M += 1

     k = (N, float(M)/N)

print (clock()-s)

Running on win7 python 2.7 32 bit it uses around 30 seconds avg.
Running on xubuntu, 32 bit, on vmware on windows 7: 20 seconds!
The code runs faster on vm, than the computer itself...
The python version in this case is 1.5 times faster...
I don't understand.

What causes this?

Back to comp.lang.python | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Code with random module faster on the vm than the vm host... Pascal Bit <pascalbit@hotmail.com> - 2013-11-08 18:48 +0100
  Re: Code with random module faster on the vm than the vm host... alex23 <wuwei23@gmail.com> - 2013-11-11 10:49 +1000
    Re: Code with random module faster on the vm than the vm host... Robert Kern <robert.kern@gmail.com> - 2013-11-11 01:19 +0000
      Re: Code with random module faster on the vm than the vm host... alex23 <wuwei23@gmail.com> - 2013-11-11 12:16 +1000
  Re: Code with random module faster on the vm than the vm host... Ned Batchelder <ned@nedbatchelder.com> - 2013-11-10 17:15 -0800
    Re: Code with random module faster on the vm than the vm host... Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-11 01:31 +0000

csiph-web