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Jari,<br>
<br>
I noticed that ForEachInteger is extremly slow on loops with high
ranges.<br>
And that there is an<b> incredible speed boost</b> on these loops,
if the script is run a second time.<br>
<br>
With the simple print-loop code snippet at very bottom, I get the
following results for processing time, if I run the loops with these
values in this order:<br>
<br>
endloop=10000 -> 0.214s<br>
endloop=20000 -> 0.813s<br>
endloop=60000 -> <b>14.928s</b> <br>
endloop=160000 -> <b>134.258</b><b>s</b> (!)<br>
endloop=20000 -> 0.071s (run again with the same 20000 value)<br>
endloop=60000 -> 0.221s (run again with the same 60000 value)<br>
endloop=160000 -> 0.566s (run again with the same 160000 value)
<br>
endloop=80000 -> 0.282s (although this value was not yet
calculated it's now done very quickly. Probably because the value
80000 is below the yet highest value of 160.000) <br>
<br>
If you look more deeply into these numbers, it looks like for
example in the 160.000 loop the 60.000 elements that were calculated
in the previous run of the script were calculated extremly fast and
only the remaining new 100.000 elements took very long.<br>
So if I restart Finale and start with calling the script with
160.000, it even takes longer than 134 seconds.<br>
When running the script again with a lower loop end value than
before, the calculation time is linear and very fast.<br>
<br>
Are the Pentium prefetching optimizations really so clever that they
save 99% of the processing time ?<br>
I think there must be problem in the implementation as I don't know
why this simple print loop should take 50s on only 180.000
iterations on a high speed PC. Maybe it's an iterative memory
allocation problem: only the first time the memory is allocated and
then kept free for further loop calls.<br>
<br>
Jan<br>
<br>
function DoCallback(i)<br>
print("Callback"..i)<br>
end<br>
<br>
local it=finale.FCLuaIterator()<br>
it.UseProgressBar=true<br>
it.AbortableProgressBar=false<br>
it.ProgressUpdateFrequency=1 <br>
local endloop=.... --(take value from above)<br>
it:ForEachInteger(1,endloop,DoCallback)<br>
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