How can i set Max Size Of Completion Event Queue?

[appchemist]

First of all, I'm sorry about writing question as issue.

I Can't find proper place where i write question about asio.
There is a Similar question in StackOverflow, but is not properly answered.
StackOverflow

I have similar Question like above question in stackoverflow

If enqueuing Completion Event Queue by Asynchronous Operation Processor is more faster than dequeueing Completion Event Queue by by Proactor to Completion Handler, I think it will hit memory limit.
so. I have question how can i set max size of completion event queue? or how can i deal with this situation?