So, performance wise ColdFusion will fluctuate between OS? Not exactly the
best advert for performance etc. If one OS is faster wouldn't more people
move or plan for that OS?




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-----Original Message-----
From: Sean Corfield
To: CF-Talk
Sent: Sun Jun 03 06:44:28 2007
Subject: Re: isdefined vs structkeyexists (was: cfinvoke or CreateObject)

It's platform specific. On OS X, structKeyExists() is always 20-30%
faster under any circumstances. On Windows isDefined() is often
faster.

On 6/2/07, Brad Wood <[EMAIL PROTECTED]> wrote:
> I have done test with structkeyexists and isdefined and found that it
> actually can depend on whether or not the value exists.  I ran two
> tests, one with a small struct (1 key) and one with a large struct (500
> keys) and the size of the structs didn't make any difference.
>
> I looped several thousand times and sliced the results 4 different ways
> in each test:
> isdefined() when the key was NOT present (1254 ms)
> structkeyexists() when the key was NOT present (1172 ms)
> isdefined() when the key WAS present (1087 ms)
> structkeyexists() when the key WAS present (1259 ms)



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