I'm rewriting my CFMakeTree tag in order to make it tighter and work in CFMX better. One of the assumptions I had was that Lists would be problematic in comparison to Arrays or Structs. My first test was to find a value in one of these data collections. For Lists I used ListFindNoCase. For Arrays, I looped over the array to find the value and for Structs I used StructFindValue(). I ran each test in a 1000 iteration loop to see if anything showed up. On the whole, Arrays took the longest, which is to be expected as they had to loop (no native arrayfind function). Structures took less then 10% of the array time to search and lists took 1/3 of the struct time. The data set was 0-9a-z written out in full and the item searched for was the z. So the results are basically that lists are easier to search than either structures or arrays. As a side note, I tried using a query of queries and it was much, much slower.
The second experiment was to loop over each data collection. In this, we see much different results. Arrays were fastest. Lists were anywhere from about as fast as an array to twice as slow. Structures tended to be on par with lists, but sometimes slower. On the whole, unless you see a need to, I'd stick with using lists in CFMX. I have heard of people who have seen some major slowdowns due to lists and I'd love to hear the specifics. Michael Dinowitz Master of the House of Fusion http://www.houseoffusion.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 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 Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm
