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JamoCA/CFLoop_Test.cfm

Last active December 26, 2015 19:59
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ColdFusion looping comparison script - CFScript versus CFML. Based on information available at http://duncan99.wordpress.com/2012/10/18/coldfusion-cfloop-versus-cfscript-for-loop-performance/ I tested this because some functions seemed slower when migrating CFML to CFScript.
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CFLoop_Test.cfm
<!DOCTYPE html>
<html lang="en">
<head>
<title>CFLoop Test - CFScript versus CFML</title>
</head>
<body>
<h1>CFLoop Test - CFScript versus CFML</h1>
<cfset testresults = arraynew(2)>
<cfset myarray = arraynew(1)>
<cfloop index="i" from="1" to="1000000"><cfset arrayappend(myarray, "")></cfloop>
<cfoutput>
<h2>Looping over #NumberFormat(ArrayLen(MyArray))# array elements</h2>
</cfoutput>
<cfsilent>
<cfscript>
function loopit(a){
arrayEach(a,function(){});
}
</cfscript>
<cfloop index="j" from="1" to="10">
<cfscript>
tick = GetTickCount();
for (i=1; i <= arraylen(myarray); i++) {}
</cfscript>
<cfset testresults[1][j] = numberformat(gettickcount()-tick)>
<cfscript>
tick = GetTickCount();
len = arrayLen(myArray);
for (i=1; i <= len; i++) {}
</cfscript>
<cfset testresults[2][j] = numberformat(gettickcount()-tick)>
<cfscript>
tick = GetTickCount();
for (item in myArray) {}
</cfscript>
<cfset testresults[3][j] = numberformat(gettickcount()-tick)>
<cfscript>
tick = GetTickCount();
arrayEach(myArray,function(){});
</cfscript>
<cfset testresults[4][j] = numberformat(gettickcount()-tick)>
<cfscript>
tick = GetTickCount();
loopit(myArray);
</cfscript>
<cfset testresults[5][j] = numberformat(gettickcount()-tick)>
<cfset tick = gettickcount()>
<cfloop index="i" from="1" to="#arrayLen(myArray)#"></cfloop>
<cfset testresults[6][j] = numberformat(gettickcount()-tick)>
<cfset tick = gettickcount()>
<cfset len = arraylen(myarray)>
<cfloop index="i" from="1" to="#len#"></cfloop>
<cfset testresults[7][j] = numberformat(gettickcount()-tick)>
<cfset tick = gettickcount()>
<cfloop array="#MyArray#" index="i"></cfloop>
<cfset testresults[8][j] = numberformat(gettickcount()-tick)>
</cfloop>
</cfsilent>
<style>
#myTable tbody td {text-align:right;}
#myTable tfoot td {text-align:right; font-weight:bold;}
</style>
<table id="myTable" border=1 cellspacing=0 cellpadding=1>
<thead>
<tr>
<th>Iteration</th>
<th>CFScript (arrayLen)</th>
<th>CFScript (var'ed)</th>
<th>CFScript (for item in)</th>
<th>CFScript (arrayEach)</th>
<th>CFScript (arrayEach UDF)</th>
<th>CFML (arrayLen)</th>
<th>CFML (var'ed)</th>
<th>CFML (array)</th>
</tr>
</thead>
<cfoutput>
<tfoot>
<tr><td>Avg</td><cfloop from="1" to="8" index="i"><td>#ArrayAvg(TestResults[i])#</td></cfloop></tr>
<tr><td>Sum</td><cfloop from="1" to="8" index="i"><td>#ArraySum(TestResults[i])#</td></cfloop></tr>
<tr><td>Min</td><cfloop from="1" to="8" index="i"><td>#ArrayMin(TestResults[i])#</td></cfloop></tr>
<tr><td>Max</td><cfloop from="1" to="8" index="i"><td>#ArrayMax(TestResults[i])#</td></cfloop></tr>
</tfoot>
<tbody>
<cfloop from="1" to="10" index="J">
<tr><td>#J#</td><cfloop from="1" to="8" index="i"><td>#TestResults[i][J]#</td></cfloop></tr>
</cfloop>
</table></cfoutput>
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