[REBOL] Re: How to use Hash index
From: greggirwin:mindspring at: 23-Aug-2003 8:55
Hi Robert,
RMM> Hi, IIRC I once talked to Carl and he said, that everything in Rebol is
RMM> hashed anyway. So I really don't know if there is a performance
RMM> difference. Robert
I see a pretty big difference with the following. (almost 3 seconds
for blocks, and just ~.15 for hashes)
x: copy []
insert/dup x "ABCDEFG" 250
b: append x ["AAAAAA" "BBBBBB" "CCCCCCC" "DDDDDD" "EEEEEE" "FFFFFFF"]
h: make hash! b
t: now/time/precise
repeat i 100000 [select b "EEEEEE"]
print ["block:" now/time/precise - t]
t: now/time/precise
repeat i 100000 [select h "EEEEEE"]
print ["hash:" now/time/precise - t]
t: now/time/precise
repeat i 100000 [find b "EEEEEE"]
print ["block:" now/time/precise - t]
t: now/time/precise
repeat i 100000 [find h "EEEEEE"]
print ["hash:" now/time/precise - t]
-- Gregg
