I have un 4GB RAM AMD Opteron machine (3.2GHz quad) on 64-bit Win2k8 RS2 -- installed Apache Lounge 32-bit version (as general consensus is no big speed win between 32-bit and 64-bit) with thread-safe VC9 PHP 5.3.8.
First byte out on Apache is ok, with mod_deflate, there is a slight betterment over the old Intel 1GB machine. PHP via Apache (as module) and PHP as CLI takes 1 sec for script that takes the old box just over half that time.
MySQL is running fine and fast (64-bit). hosts file is not the probleme.
What settings I should be checking to make the whole PHP proces faster?