IIS 7.5 performance issue using php
iis, performance, php
Solution
Unless you're running PHP as a fastCGI module the lag time is like because IIS has to fire up a PHP process from scratch, ie: load the executable, parse the config, load extensions, etc. On the other hand fCGI keeps X processes up and ready to handle requests as soon as they come in.
There's documentation on fCGI setup here.
Problem
For testing purposes I have the following script in PHP 5.4: ``` define(START_TIME_CUSTOM, microtime(true)); function onEndTimeCompute() { $timeTaken = microtime(true) - START_TIME_CUSTOM; echo "Completed In: ".number_format($timeTaken, 4)." Seconds\n"; } register_shutdown_function('onEndTimeCompute'); echo "Just before exit"; exit; echo "Just after exit"; ``` (Script taken from here: https://serverfault.com/questions/192211/iis-logging-write-to-log-file-more-often) The execute time is: 0.00002 seconds. I'm running on a local webserver IIS7.5. I'm also using Chrome. It takes 1 second to load the page. Any ideas on why it takes a full second? I'd expect it to serve the response instantly. Regards, Paul