Heck if I know, I have yet to actually build a website that had any significant loading on it :-)
You might want to check your server settings (or your setup in the application.cfm) to see how long the session variables are good for before they expire. If its only 20-60 minutes, then how likely is it that you will have enough loading in 1 hour to cause a problem...Probably slim. I read a long time ago somewhere how to calculate variable ram usage, I might be wrong, but it was something like X number of bytes per letter of a string, etc. you could just as easily open up MS SQL, create a fake table with each variable name you are going to make into a session variable. Use nChar instead of Char (n tells it to use unicode, which uses twice the space as a normal character), etc. That way your estimates are worst case scenarios. If you add in a bit more space for the pointers and variable names, you might get a fair representation for variable size. For instance, if you have a string being saved as 20-40 characters, guess 40 characters of nChar, which takes 80 bytes. Add in say, 20? for the variable name and its pointer. 100B. Say you have 5 of these for a user (500). Now assume you have 15 variables with floating point values (4 bytes each I think, say, 16 for the name) 15*20=300. Add in a few integers, etc. You are probably at 1K for the user. Even if we double this to 2K for the user, that means 500 users in 1MB of ram. Say you have a server with 512mb of RAM, 170 for Windows, 40 for CFMX, 40 for SQL Server = 250. Leaving 250MB for session variables, coldfusion caching of queries, pages, source code, database queries, etc. Lets just say you have 50MB of memory for session variables, at 500 users per meg, that is 25 thousand users saving their variables in ram. I doubt seriously that most sites will get 25k+ users in <1 hour. I wouldn't worry about it. Sure, I can just hear the more anal of you questioning my very crude estimates :-), but for the average user, if they aren't saving queries, large record sets, and complex structures inside of session variables, my estimate is probably right on track. Ryan ______________________________________________________________________ The KCFusion.org list and website is hosted by Humankind Systems, Inc. List Archives........ http://www.mail-archive.com/[EMAIL PROTECTED] Questions, Comments or Glowing Praise.. mailto:[EMAIL PROTECTED] To Subscribe.................... mailto:[EMAIL PROTECTED] To Unsubscribe................ mailto:[EMAIL PROTECTED]
