[Tutor] Windows vs Linux processing speed.

bob gailer bgailer at gmail.com
Fri Oct 14 21:41:36 CEST 2011

On 10/14/2011 12:45 PM, Tony Pelletier wrote:
> Hi,
> I have a question regarding the speed of my program on linux in 
> comparison to windows.

Speed of a pure Python program depends on

  * processor speed
  * competition for resources from other processes
  * perhaps RAM

A good starting point -create a benchmark program that uses only CPU - 
no disk, no internet.

import time
n = 100000 # a guess
start = time.time()
for i in range(n):pass
print time.time() - start

Be sure n is large enough to create a run time of at least several seconds.

Run it on Linux and on Windows.

Do a speed check on your internet connections.

Then modify the program to open & read the csv file inside the loop. You 
will have to reduce n when you add disk i/o

import time, csv
n = 10000 # a guess
start = time.time()
for i in range(n):
   for line in csv.reader(open(filename, "r")):pass
print time.time() - start

Bob Gailer
Chapel Hill NC

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