CODEWITHSUNDEEP
phpperformanceiis
Paul0515
Paul0515

Reputation: 25435

IIS 7.5 performance issue using php

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

Upvotes: 4

Views: 6671

Answers (1)

Sammitch
Sammitch

Reputation: 32232

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.

Upvotes: 2

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