why python is slower than java?
rff_rff at remove-yahoo.it
Sat Nov 6 10:56:02 CET 2004
Harald Massa ha scritto:
> Israel Raj T <rambam at bigpond.net.au> wrote in news:878y9gbkh7.fsf at pop-
>>On the updated version at http://shootout.alioth.debian.org/craps.php,
>>Python beats at least two java implementations.
> Very interesting link, great ressource!!!
> What really is disturbing: within the test "hash access" perl2 comes out
> first compared with java.
> A know that Python dictionaries are the most heavily used datastructure
> (because it is allways used within Python itself), and from looking at the
> sourcecode there is the line "with help from Raymund Hettinger"; so I am
> very sure it is probably THE optimal coding.
> So... string processing, regular expression, blablabla no problem; but why
> second to perl2 in Hash-access ???
maybe because perl has been polished for more years :)
Anyway, 3 things worth noting about the shootou
- you won't *ever* write heapsort and things like that in python,
obviously it is slow, and obviously you have'em builtin.
- there are some tricks like using numarray for matrix calculations
- the ranking system is named CRAP(s).
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