Hope that I put the quetion in right Forum.
I have a question about server performance, I will install 3 Standard Editions on one server, one domain name but different folders.
Can this case leads to slow down the functionality of Sitefinity?
It all comes down to does the server have enough ram for Sitefinity to use. We have a rackspace vm with 3 instances and crappy Telligent community server (which btw eats more resources than all 3 Sitefinity instances)... every site runs fine.
If you don't have enough ram to run in 64 bit mode, change your app pool to run in 32 bit and it'll use literally 1/2 the ram at no noticeable perf diff.