Profiling, sum-comprehension vs reduce

[Marc 'BlackJack' Rintsch]

On Sat, 13 Sep 2008 01:06:22 -0700, cnb wrote:

> This must be because of implementation right? Shouldn't reduce be faster
> since it iterates once over the list? doesnt sum first construct the
> list then sum it?

No it doesn't.  Why should it?

> also, using range instead of xrange doesnt seem to generate a
> performance-penalty:

(De)Allocating a list of length 100 isn't very slow.  Try some million 
elements.  And watch the memory consumption too.

Ciao,
	Marc 'BlackJack' Rintsch