ruslany

Another thing to try just for test is to temporary switch to PHP 5.2 and check if the delay still exist.

Yes, I can see the delay, which does look abnormal. What about PHP scripts that do not call into MySQL? For example wincache.php script that is included with WinCache extension - does it also take 2 seconds to render a page or is it faster? Another thing to try is to profile the code with xdebug and then use WinCacheGrind to see which functions take most of the time. This is how for example I was able to see that mysql_connect took a lot of time.

I have also noticed slower response times when using PHP 5.3.5 with MySQL. After I edited wp-config.php to use the IP address instead of the machine name for the MySQL server, the response time has improved for me. Have you tried that?

I have not tried this on IIS 6, but on IIS 7 this works as expected. I am going to try on IIS 6 to confirm. What do you use to run PHP on IIS 6? Is it via FastCGI?