Repeat loop optimization?

[Sarah Reichelt]

Hi Glen,

I reckon you should be able to process all 10000 lines in one go, 
without to much delay.
Re-writing your fireBig handler to use "repeat for each" which is MUCH 
faster than "repeat with":

on firebig
   put long time into fld sb1
   put line 1 to 10000 of fld "out" into fbtemp1
   put empty into sbTime1
   repeat for each line L in fbTemp1
     get word 1 to 2 of L
     convert it to seconds
     put it & cr after sbtime1
   end repeat
   put long time into fld eb1
end firebig

I would be interested to see how long this takes.

Cheers,
Sarah
sarahr at genesearch.com.au
http://www.troz.net/Rev/

On 24 Mar 2004, at 6:37 am, Glen Bojsza wrote:

> I tried the following experiment.
>
> I have a field with 10000 lines and I want to convert the first word 
> to seconds
>
> Method 1
>
> Break the 10000 lines into 5 separate loops. The start time and end 
> time was recorded for each loop - ie when a loop completed the next 
> loop started.
>
> TIME TO PROCESS 21 seconds
>
> Method 2 is the same script but with fire# commented out (firebig is 
> the only loop)
>
> TIME TO PROCESS 1 minute 27 seconds
>
> This is a substantial difference...can anyone give me some pointers on 
> how I should optimize repeat loops. I thought that doing the one big 
> loop should be as fast as the multiple loops?
>
> on mouseUp
> fireUpdate
> end mouseUp
>
> on fireUpdate
>   fire1
>   fire2
>   fire3
>   fire4
>   fire5
>   --firebig
> end fireUpdate
>
> on fire1
>   put long time into fld s1
>   put line 1 to 2000 of fld "out" into ftemp1
>   repeat with l = 1 to 2000
>   get  word 1 of line l of ftemp1 && word 2 of line l of ftemp1
>     convert it to seconds
>     put it & cr after stime1
> end repeat
> put long time into fld e1
> end fire1
>
snip
> on firebig
>   put long time into fld sb1
>   put line 1 to 10000 of fld "out" into fbtemp1
>   repeat with l = 1 to 10000
>   get  word 1 of line l of ftemp1 && word 2 of line l of fbtemp1
>     convert it to seconds
>     put it & cr after sbtime1
> end repeat
> put long time into fld eb1
> end firebig