At DevCon there was a session that proved the order of speed of execution performing similar operations...
UDF - Fastest Custom Tag CFC - Slowest, Jb. -----Original Message----- From: jon hall [mailto:jonhall@;ozline.net] Sent: 08 November 2002 22:22 To: CF-Talk Subject: Re: Really bad cfc performance? I just tested with an include and it performed very badly...worse than the cfc...which confuses me a bit, but there is some obvious optimization that could be done here in the CF backend... <cfset start3 = getTickCount()> <cfloop from="1" to="5000" index="i"> <cfinclude template="addtag.cfm"> </cfloop> <cfset end3 = getTickCount()> <cfset time3 = end3 - start3> <cfoutput>#time3# ms</cfoutput> addtag.cfm --------- <cfset rs = 1 + 1> Seems like UDF's are the way to go for encapsulating logic where performance is an issue. -- jon mailto:jonhall@;ozline.net Friday, November 8, 2002, 4:44:48 PM, you wrote: RE> Ok then will it have the same performance of an include? RE> Robert Everland III RE> Web Developer Extraordinaire RE> Dixon Ticonderoga Company RE> http://www.dixonusa.com RE> -----Original Message----- RE> From: Raymond Camden [mailto:jedimaster@;macromedia.com] RE> Sent: Friday, November 08, 2002 4:43 PM RE> To: CF-Talk RE> Subject: RE: Really bad cfc performance? RE> A CFC has more overhead then a UDF simply because it has more features - RE> access type, security (although you can use roles in UDFs defined in RE> cffunction), state with the This scope, etc. It's not fair to expect a UDF RE> call to 1-1 with a CFC method call when a CFC method has more going on. RE> ======================================================================= RE> Raymond Camden, ColdFusion Jedi Master for Hire RE> Email : [EMAIL PROTECTED] RE> WWW : www.camdenfamily.com/morpheus RE> Yahoo IM : morpheus RE> "My ally is the Force, and a powerful ally it is." - Yoda >> -----Original Message----- >> From: Robert Everland [mailto:REverland@;dixonusa.com] >> Sent: Friday, November 08, 2002 4:34 PM >> To: CF-Talk >> Subject: RE: Really bad cfc performance? >> >> >> Speed isn't everything, it's the only thing. >> >> Seriously though, what I would like to see is a time difference with 3 >> algorithms that do the exact same thing. 1 done in CFC, one done in >> UDF, and one done in inline code. If UDF and CFC execute the same, I >> can handle that, >> BUT if CFC is slower than UDF I must ask why. >> >> Robert Everland III >> Web Developer Extraordinaire >> Dixon Ticonderoga Company >> http://www.dixonusa.com >> >> -----Original Message----- >> From: Raymond Camden [mailto:jedimaster@;macromedia.com] >> Sent: Friday, November 08, 2002 4:32 PM >> To: CF-Talk >> Subject: RE: Really bad cfc performance? >> >> >> > The code I sent was just to illustrate the fact that no matter how >> > optimized the code is within a cfc, there is a minimum >> amount of time >> > a cfc is going to take to execute. >> >> Right - and this is to be expected. >> >> > Specifically what I was trying to optimize was a check to see of an >> > email address was a duplicate, valid, and not in a remove >> list. This >> > would require 2 database queries and a run through the validate >> > method. I eliminated the need for the two queries by using query of >> > queries, but was unable to get barely any performance >> gain...every cfc >> > call is taking ~15ms, no matter what. >> >> 15ms seems a bit high. However, remember that the point here is >> encapsulation. By having your 'isDupe' method stored in one central >> location, you can easily update the code w/o worrying about other >> templates that may have had their own versions. You could also add >> security. I won't >> go on - I love CFCs and it's obvious. >> >> The point remains the same. The _fastest_ code will almost >> always be inline >> code. However, speed isn't everything. >> >> -ray >> >> >> >> RE> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Get the mailserver that powers this list at http://www.coolfusion.com
