[2013-09-08 16:27 UTC] butesa at freenet dot de

Description:
------------
Loading a website with the http wrapper takes very long if protocol_version is set to 1.1. The time it takes depends on the timeout. On some servers the problem doesn't occur.

I tested also on Ubuntu 10.04 (PHP 5.3.2-1ubuntu4.19) and Ubuntu 12.04 (PHP 5.3.10-1ubuntu3.7), both 64bit.

Test script:
---------------
<?php
$url = 'http://www.google.de/intl/de/policies/?fg=1';
foreach(array(1.0,1.1) as $proto)
{
	for ($timeout = 1; $timeout < 60; $timeout+=10)
	{
		$st = microtime(true);
		$opt = array(
			'http' => array(
				'timeout' => $timeout,
				'protocol_version' => $proto,
				),
			);
		$context = stream_context_create($opt);
		$content = file_get_contents($url,false,$context);
		printf("%2d %.1f %f %s\n", $timeout, $proto, microtime(true) - $st, md5($content));
	}
}
?>

Expected result:
----------------
The request takes the same time, no matter what timeout and protocol_version is set.

Actual result:
--------------
Output of the test script:
For $url='http://www.google.de/intl/de/policies/?fg=1':
 1 1.0 0.279102 60bf7bc72d2a06b337c8a8464e0f9e66
11 1.0 0.277956 60bf7bc72d2a06b337c8a8464e0f9e66
21 1.0 0.283753 60bf7bc72d2a06b337c8a8464e0f9e66
31 1.0 0.285862 60bf7bc72d2a06b337c8a8464e0f9e66
41 1.0 0.277894 60bf7bc72d2a06b337c8a8464e0f9e66
51 1.0 0.285653 60bf7bc72d2a06b337c8a8464e0f9e66
 1 1.1 2.284301 60bf7bc72d2a06b337c8a8464e0f9e66
11 1.1 22.305424 60bf7bc72d2a06b337c8a8464e0f9e66
21 1.1 42.309270 60bf7bc72d2a06b337c8a8464e0f9e66
31 1.1 62.355997 60bf7bc72d2a06b337c8a8464e0f9e66
41 1.1 82.360794 60bf7bc72d2a06b337c8a8464e0f9e66
51 1.1 102.379933 60bf7bc72d2a06b337c8a8464e0f9e66

For $url='http://www.example.com':
 1 1.0 0.491382 09b9c392dc1f6e914cea287cb6be34b0
11 1.0 0.426191 09b9c392dc1f6e914cea287cb6be34b0
21 1.0 0.428513 09b9c392dc1f6e914cea287cb6be34b0
31 1.0 0.423852 09b9c392dc1f6e914cea287cb6be34b0
41 1.0 0.423751 09b9c392dc1f6e914cea287cb6be34b0
51 1.0 0.431590 09b9c392dc1f6e914cea287cb6be34b0
 1 1.1 1.420486 09b9c392dc1f6e914cea287cb6be34b0
11 1.1 6.143113 09b9c392dc1f6e914cea287cb6be34b0
21 1.1 5.994384 09b9c392dc1f6e914cea287cb6be34b0
31 1.1 5.991940 09b9c392dc1f6e914cea287cb6be34b0
41 1.1 6.012121 09b9c392dc1f6e914cea287cb6be34b0
51 1.1 6.007920 09b9c392dc1f6e914cea287cb6be34b0

For $url='http://www.php.net':
 1 1.0 1.673016 2dcc6fe85b335205a35d9980a9095735
11 1.0 1.935555 2dcc6fe85b335205a35d9980a9095735
21 1.0 1.648235 2dcc6fe85b335205a35d9980a9095735
31 1.0 1.637566 2dcc6fe85b335205a35d9980a9095735
41 1.0 1.633473 2dcc6fe85b335205a35d9980a9095735
51 1.0 1.718051 2dcc6fe85b335205a35d9980a9095735
 1 1.1 1.647803 2dcc6fe85b335205a35d9980a9095735
11 1.1 1.863799 2dcc6fe85b335205a35d9980a9095735
21 1.1 1.673567 2dcc6fe85b335205a35d9980a9095735
31 1.1 1.651704 2dcc6fe85b335205a35d9980a9095735
41 1.1 1.657976 2dcc6fe85b335205a35d9980a9095735
51 1.1 1.635651 2dcc6fe85b335205a35d9980a9095735