Performance penalty for using classes?

[Neal Norwitz]

On Sun, 12 Jan 2003 03:04:43 -0500, Miki Tebeka wrote:

> I need my M.Sc. to run fast but I don't want to recode it in C. I've
> noticed that using classes can cause my code to run about 30% slower.
> (See the below tests)

Perhaps you can use Python 2.3a1.  While it is only an alpha, I believe
it is very stable.  It is also a little bit faster than 2.2. :-)
./python (in clean directory) is 2.3.

Neal
--
[neal at epoch clean]$ time ./python /tmp/class_test.py 
Going 100000 iterations
* Done

real    0m2.197s
user    0m2.060s
sys     0m0.020s
[neal at epoch clean]$ time python2.2 /tmp/class_test.py 
Going 100000 iterations
* Done

real    0m5.888s
user    0m4.900s
sys     0m0.030s
[neal at epoch clean]$ time ./python /tmp/struct_test.py 
Going 100000 iterations
* Done

real    0m1.455s
user    0m1.430s
sys     0m0.010s
[neal at epoch clean]$ time python2.2 /tmp/struct_test.py 
Going 100000 iterations
* Done

real    0m3.927s
user    0m3.870s
sys     0m0.020s