I wonder if the kind or amount of data has an effect. The data I used
was a list of about 10000 lines, each consisting of 7 items, from 4
to 12 characters each.
I also made sure that about 1 in 5 lines was duplicated.
One application of the deleteDups function with 'split' - 60 - 65 ms.
With 'for each', 75 to 85 ms., so civilisation is definitely safe :)
Mark
On 16 Nov 2005, at 19:35, Geoff Canyon wrote:
On Nov 16, 2005, at 10:03 AM, J. Landman Gay wrote:
Wow. That's good to know. Who woulda thunk? Our of curiosity, how
long is "twice as long"? Is it minimal, or something we have to
think about for long lists?
On a 1ghz powerbook I ran a check on a list with something like
30,000 entries, all 7 characters long, with no dupes in the list.
I ran the de-dupe routine 100 times in roughly 400 ticks for the
repeat for each version, 700 ticks for the split version.
Obviously that's 4 ticks for one iteration vs. 7, so we're not
talking the end of civilization here.
gc
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