> I shall see if I can dig out my old tests, if I still have them, and we
> can compare notes. But: tomorrow.
I ran a quick test this morning....did the following:
<cfsilent>
<cfset i = "50000">
<cftimer>
<cfloop from="1" to="#i#" index="i">
<cfset foo = randRange(0,1)>
<cfset bigRandom = randRange(10000,20000) />
<cfset bar = iif(foo, "foo + bigRandom", "foo + bigRandom") />
</cfloop>
</cftimer>
</cfsilent>
VS.
<cfsilent>
<cfset i = "50000">
<cftimer>
<cfloop from="1" to="#i#" index="i">
<cfset foo = randRange(0,1)>
<cfset bigRandom = randRange(10000,20000) />
<cfif foo>
<cfset bar = foo + bigRandom />
<cfelse>
<cfset bar = foo + bigRandom />
</cfif>
</cfloop>
</cftimer>
</cfsilent>
Results:
i = 1000: To small to measure
i = 10000: <cfif> ran about 2x as fast
i = 25000: <cfif> ran about 2.5x - 3x as fast
i = 50000: <cfif> ran about 2x - 2.5x as fast
i = 75000: <cfif> ran about 2x as fast
i = 100000: <cfif> ran about 2x as fast
i = 200000: <cfif> ran about 2.2x as fast
Notes:
This test isn't scientific in any way. I ran it ad-hoc on my laptop
and an idle server.
I used the bigRandom to defeat any caching of string to be evaluated
that the CF engine may perform.
-Joe
--
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