Transforming nginx for Windows

[itpp2012]

Working on getting real high performance with nginx under windows I am
rewriting code and already got around the fd_setsize issue following
http://stackoverflow.com/questions/7976388/increasing-limit-of-fd-setsize-and-select/18530636
which is documented as http://support.microsoft.com/kb/111855

I came across an interesting issue (FD_SETSIZE compiled for 8196), when
worker_connections is set to 1024 I can get a max of 4500 true concurrent
connections working, when worker_connections is set to 2048 I can get a max
of 9000 true concurrent connections working, is there some kind of recycling
of FD going on inside nginx ? if not I need to look somewhere else.
I intend to also solve the worker_processes issue but I first want to find
out who is recycling the FD's.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,242426,242426#msg-242426