I was hoping someone could help explain what happens when ActionFunction gets triggered that could cause the slowness that I see here:
I noticed unusual slowness in my ActionFunction calls, so set up the simple test shown below. It should just call 'actionFunctionTest' 5 times, which itself does not have an action, has immediate=true, and rerender=none.
As is, it takes 4-10 seconds to complete.
If I remove controller="TestClass", just leaving apex:page at the top, it only takes 600ms to complete. ... though even this is slower than I would hope for.
Note - in reality, I am using several actionFunctions to perform simple tasks like rerendering messages, and I would like to be able to do this without the overhead of whatever else is happening.