Hi,
I wanted to measure the performance of the comparison operator
Value.'==', and I do not understand the results I get.
local
T1=test(a b c d e f g h i j k l m n o p a b c d e f g h i j k l m n)
T2=test(a b c d e f g h i j k l m n o p a b c d e f g h i j k l m n)
T3=T1
proc {Time Desc P}
T
in
T={Property.get 'time.total'}
{P}
{System.showInfo Desc#
" finished in "#({Property.get 'time.total'}-T)#" ms"}
end
in
%% TEST1
{Time "T1==T2"
proc {$} for I in 1;I<1000000;I+1 do _=T1==T2 end end}
T1=T2
%% TEST2
{Time "T1==T2 (2)"
proc {$} for I in 1;I<1000000;I+1 do _=T1==T2 end end}
%% TEST3
{Time "T1==T3"
proc {$} for I in 1;I<1000000;I+1 do _=T1==T3 end end}
end
Results:
T1==T2 finished in 687 ms
T1==T2 (2) finished in 688 ms
T1==T3 finished in 78 ms
TEST1 and TEST2 perform equally, even though T1 is unified with T2
before TEST2. Shouldn't TEST2 be as fast as TEST3?
Thanks,
Filip
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