PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: sockets blocking vs. not

Normal sockets in PHP are blocking. Does using a select manually improve things for just a single socket? Note this test depends on external things, and so is fairly inaccurate.

Run this test again Return to test menu

Historical Results

Based on (13) saved test runs, The test labeled "blocking" was (on average) the faster by 0.0123 seconds, (1.537% faster)

blocking 100%
non-blocking 98.463%

The blocking test took 0.7886 seconds.
The non-blocking test took 0.8009 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 209,412 loops for a total of 4,188,231 runs.

  • Line execution difference (0.000003) milliseconds.
  • Avg difference (0.000) milliseconds per 209,412 loops.
  • Total difference 12.31 milliseconds for 4,188,231 loops

The iteration variablity for Code 1 was (0.0000) milliseconds and Code 2 was (0.0000) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "blocking", was:

$fp = fsockopen('127.0.0.1', 80, $errno, $error);
fwrite($fp,
	'GET / HTTP/1.1' . "\r\n" .
	'Host: localhost' . "\r\n\r\n");

$GLOBALS['dummy2'] = fread($fp, 100);
fclose($fp);

The second test, "non-blocking", was:

$fp = fsockopen('127.0.0.1', 80, $errno, $error);
stream_set_blocking($fp, false);

$r = array($fp);
$w = array($fp);
$e = array();

if (stream_select($e, $w, $e, 2))
	fwrite($fp,
	'GET / HTTP/1.1' . "\r\n" .
	'Host: localhost' . "\r\n\r\n");

if (stream_select($r, $e, $e, 2))
	$GLOBALS['dummy2'] = fread($fp, 100);

fclose($fp);

Running: Linux (x86_64:1 GB) PHP (7.2.15-1+ubuntu16.04.1+deb.sury.org+1)