Lighttpd Not Work Well With Php

Lighttpd works well with static file.

But for php, it's totally not good for me
I just install lighttpd and php.

By [url]

Now It takes about 10 seconds for the
server to response.

Here is a part of config file
############ Options you really have to take care of
####################
server.max-keep-alive-requests = 4
server.max-keep-alive-idle = 4
server.max-read-idle = 60
server.max-write-idle = 1024
server.max-fds = 8192

php.ini using the default one
Here is the link to it
[url]

And only about 200 connections. the load average is only 0.02.

When I check the error log
2007-11-08 12:38:46: (server.c.1253) NOTE: a request for
/view_video.php?viewkey=f8e13f14b405e038deb6&page=&viewtype=&category=
timed out after writing 13068 bytes. We waited 1024 seconds. If this a
problem increase server.max-write-idle
2007-11-08 12:40:07: (server.c.1253) NOTE: a request for
/view_video.php?viewkey=b9530df88f7f002e78ea timed out after writing
13068 bytes. We waited 1024 seconds. If this a problem increase
server.max-write-idle