Ok, so in Java using a String can cost a lot when you have to append over
and over (because I think it makes a new String object for each iteration) -
to fix this you're supposed to use a string buffer. So I decided to try
using a string buffer in MX to see if I could get a bit of a performance
gain... check it out
with string buffer:
<cfscript>
sb_filler = createObject("java","java.lang.StringBuffer");
for(x=0; x lte 65535; x=x+1){
sb_filler.append(chr(x));
}
</cfscript>
<cfoutput>#sb_filler.toString()#</cfoutput>
** Average: 5609 ms **
normal string
<cfscript>
s_filler = "";
for(x=0; x lte 65535; x=x+1){
s_filler = s_filler & chr(x);
}
</cfscript>
<cfoutput>#s_filler#</cfoutput>
** Average: 17250 ms **
You wont see a bit performance in crease with little appends, but it makes a
difference with big ones.
(I can believe Macromedia doesn't want me to work for them :-/ jezzz)
Rob
http://treebeard.sourceforge.net
http://ruinworld.sourceforge.net
Scientia Est Potentia
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