I have a rails app that I am just starting to beta test with real people. I have a shared hosting account for now but I plan to upgrade to VPS as I get closer to live. I'm using passenger.
I am seeing long delays when I access my site - sometimes up to 10 seconds. Subsequent hits are always much faster. The rails production.log reports that requests take less than a second to process within rails so where are the other 9 seconds spent?
My best guess is that, because my traffic is so infrequent, my app gets switched out and each visitor has to wait while my app and/or rails is loaded from disk but I don't know how to confirm that or address it.
Is there somewhere I can check to see what is happening for those other 9 seconds?
If my theory is correct, what can I do about it? If it's not, any other theories? Would the response on VPS be better?