just to qualify that, take the following code to compare the two (I'm
populating an array and list with email addreses and then searching for a
particular one):
<cfscript>
myList = "";
myArray = arraynew(1);
myArrayResult = "";
myListResult = "";
arraythen = gettickcount();
for (i=1;i lte 2000;i=i+1) {
arrayappend(myArray, "[EMAIL PROTECTED]");
}
for (i=1;i lte arraylen(myArray);i=i+1) {
if (myArray[i] eq "[EMAIL PROTECTED]") {
myArrayResult = myArray[i];
break;
}
}
arraynow = gettickcount();
listthen = gettickcount();
for (s=1;s lte 2000;s=s+1) {
myList = listappend(myList, "[EMAIL PROTECTED]");
}
myListResult = listgetat(myList,
listfind(myList,"[EMAIL PROTECTED]"));
listnow = gettickcount();
</cfscript>
<cfoutput>
Arraytime = #arraynow-arraythen#<br>
Listtime = #listnow-listthen#
</cfoutput>
and the results?
ArrayTime ListTime
311 3104
101 2904
161 2623
60 2634
130 2744
expect a bigger difference with higher numbers than 2000 iterations.
> -----Original Message-----
> From: Paul Johnston [mailto:[EMAIL PROTECTED]
> Sent: 30 September 2003 11:08
> To: [EMAIL PROTECTED]
> Subject: RE: [ cf-dev ] Fastest data structure?
>
>
> > my experience with high traffic stuff like this is to store
> > them as arrays.
> >
> > Quick as lightning to add.
> >
> > In loe levels, you can't really tell the difference between an
> >
> > arrayappend(myArray, "kjsdlkjljdadjldja")
> > and
> > myLIst = listappend(myList, "kjsdlkjljdadjldja")
> >
> > but once you start adding large numbers of keys, the list
> > method starts to slow down very quickly. Converting them to
> > arrays gave me a **very** big perfomance increase, even when
> > having to use search the array for a particular key afterwards.
>
> That helps. Ta
>
> Paul
>
>
>
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