21 May
2008
21 May
'08
4:40 p.m.
On Wed, 2008-05-21 at 14:20 -0600, Scott Dillard wrote:
I got an off-list response from Bertram Felgenhauer, and he made some improvements to my code. I've attached a new patch -- disregard the old one.
Here are the timings on my 2Ghz Core Duo, for the program
main = print . IS.fold (+) 0 . IS.fromList $ [i-n|i<-[1..2*n]] where n = 5000000
original: 2,820,354,288 bytes allocated in the heap Total time 5.19s ( 5.47s elapsed)
new function: 1,168,348,000 bytes allocated in the heap Total time 3.63s ( 3.93s elapsed)
How many times can I reply to myself before I'm banned from the list? :)
As many as you like if you keep posting improvements like that! :-) Duncan