Which string operation is faster?
Which of these executes faster, or do they each take the same amount of processing? Are they equivalent under the hood? cfset foo = #var1#123 or cfset foo = var1 123 ~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:230764 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Which string operation is faster?
If you care about the speed difference, CFML is the wrong language to be using. CFML is designed to be fast enough, but primarily focus on ease of development. If you care about the handful of clock cycles that might differentiate those two, you're better off with a platform that is designed with performance foremost on the requirements list. I.e. C with assembler libraries. Now if you want to know about readability, that's a far better question, though I think it boils down primarily to personal style. cheers, barneyb On 1/30/06, James Reily [EMAIL PROTECTED] wrote: Which of these executes faster, or do they each take the same amount of processing? Are they equivalent under the hood? cfset foo = #var1#123 or cfset foo = var1 123 -- Barney Boisvert [EMAIL PROTECTED] 360.319.6145 http://www.barneyb.com/ Got Gmail? I have 100 invites. ~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:230765 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
RE: Which string operation is faster?
Difference appears to be nil. Initial compile time was slighty higher on the #var1#123 method (62ms vs 47 ms for var1 123). Running each set of code 10 times in a row averaged between 0 and 16ms for each. Here's some code for testing: cfset var1 = abc !--- cfset foo = #var1#123 cfset foo = var1 123 --- !--- Setup timing test --- cfset iterationCount = 1000 !--- Time an empty loop with this many iterations --- cfset tickBegin = GetTickCount() cfloop Index = i From = 1 To = #iterationCount# cfset foo = var1 123 /cfloop cfset tickEnd = GetTickCount() cfset loopTime = tickEnd - tickBegin !--- Report --- cfoutputLoop time (#iterationCount# iterations) was: #loopTime# milliseconds/cfoutput !//-- andy matthews web developer ICGLink, Inc. [EMAIL PROTECTED] 615.370.1530 x737 --//- -Original Message- From: James Reily [mailto:[EMAIL PROTECTED] Sent: Monday, January 30, 2006 12:48 PM To: CF-Talk Subject: Which string operation is faster? Which of these executes faster, or do they each take the same amount of processing? Are they equivalent under the hood? cfset foo = #var1#123 or cfset foo = var1 123 ~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:230766 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
RE: Which string operation is faster?
Check out the function getTickCount: http://www.techfeed.net/cfQuickDocs/?gettickcount and Ben Forta's has a good example: http://tinyurl.com/9m7vm -Original Message- From: James Reily [mailto:[EMAIL PROTECTED] Sent: Monday, January 30, 2006 11:48 AM To: CF-Talk Subject: Which string operation is faster? Which of these executes faster, or do they each take the same amount of processing? Are they equivalent under the hood? cfset foo = #var1#123 or cfset foo = var1 123 This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A1. ~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:230767 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Which string operation is faster?
I think Barney's really hit the nail squarely on the head (as per usual) :) If there's a speed difference, it's certainly going to be negligible. Readability is the bigger factor (and since I'm quite certain everyone's dying to know, I prefer cfset foo = var1 123 / :) On 1/30/06, Munson, Jacob [EMAIL PROTECTED] wrote: Check out the function getTickCount: http://www.techfeed.net/cfQuickDocs/?gettickcount and Ben Forta's has a good example: http://tinyurl.com/9m7vm -Original Message- From: James Reily [mailto:[EMAIL PROTECTED] Sent: Monday, January 30, 2006 11:48 AM To: CF-Talk Subject: Which string operation is faster? Which of these executes faster, or do they each take the same amount of processing? Are they equivalent under the hood? cfset foo = #var1#123 or cfset foo = var1 123 This transmission may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. A1. ~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:230768 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
Re: Which string operation is faster?
Thanks guys. Charlie, I prefer your notation too -- it's definitey more readable. ~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:230769 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations Support: http://www.houseoffusion.com/tiny.cfm/54
