testing float vs int speed for mul, pow, xor

bench_op.py

import sys
from time import clock
from random import randint as rand
from math import sqrt

sample = [ rand(0,(1<<16) - 1 )  for i in range(0,10000000 ) ]
fsample=map(lambda x : .0001 *x,  sample)

def time_me(sample, tag,op):
    start=clock()
    map(op, sample)
    print "%s %fs" %(  tag, clock() - start)


time_me(sample,'xint', lambda i:i^0123123112312)
time_me(fsample,'xfloat',lambda i:int(i)^01234345345)
time_me(sample,'mint', lambda i:i*i*i)
time_me(fsample,'mfloat', lambda i:i*i*i)
time_me(sample,'pint', lambda i:i**3)
time_me(fsample,'pfloat',lambda i:i**3)

#xint 1.900000s
#xfloat 3.450000s
#mint 2.130000s
#mfloat 2.430000s
#pint 2.320000s
#pfloat 3.450000s