nginx, from connected to first byte.

[digginchina]

i set up a nginx server with php fastcgi last month, but i found a little problem with it.
my frontpage is loaded in 8-10 seconds, but there is 7 seconds waste from the time when connected server, to the time when start to send the first byte. the real time which is used by the process of connection and transmission is short, i can't find a solution, could anybody help me?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,182805,182805#msg-182805