why python is slower than java?
belred1 at yahoo.com
Fri Nov 5 08:54:50 CET 2004
Maurice LING wrote:
>> at work, we use java and python. we have projects using swing and
>> others using wxpython. we have applications that do intensive io and
>> others that do intensive cpu. we have not found that python is slower
>> than java. in fact, when it comes to gui's, our swing apps take
>> "forever" to startup and when when garbage collector starts, the whole
>> app just freezes for about 15 seconds. our wxpython apps, start right
>> up and "feel" faster and snappier. can you show an example of where
>> python's "slow" speed as compared to java's "fast" speed has
>> negatively impacted your application or has been noticable in any
>> way? i know this is a trolling question you have posted, but i'm
>> actually very interested knowing why you have said this.
> Thanks, lets just say that I have no interest in trolling.
> 1st of all, I thought it is somehow common knowledge that python is
> slower than java in many cases. Though I may be wrong... When I do a
> Google search, this came up...
> although http://page.mi.fu-berlin.de/~prechelt/Biblio/jccpprtTR.pdf
> showsjust the opposite.
> What I need to work on now is something that requires speed (and dealing
> with files), without user's intervention. So the part about users' delay
> time is not in the equation. My choices boils down to Python or Java.
but you aren't saying exactly _what_ requires speed and exactly what your requirements for the project is. you are being
way too general here for anyone to really help you. as for working with files, i much rather do that in python than
java. i may be wrong, but i thought java's file IO was pretty much a thin wrapper over c. so i don't think you will
have any speed problems with python's file IO compared to java's. also, just for fun, write the following fully
working python program in java:
t = time.time()
s = open('in.txt').read()
print time.time() - t
(by the way...i was able to write the above lines of python code without referring to a manual :)
if it's not too much trouble, could you please post your code here along with the time results for the above code and
your java code? you can test a small file and a large one.
More information about the Python-list