PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: fcall vs. callback

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Historical Results

Based on (2) saved test runs, The test labeled "callback" was (on average) the faster by 0.0026 seconds, (0.430% faster)

callback 100%
fcall 99.57%

The callback test took 0.6055 seconds.
The fcall test took 0.6081 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 144,295 loops for a total of 2,885,900 runs.

  • Line execution difference (0.000001) milliseconds.
  • Avg difference (0.000) milliseconds per 144,295 loops.
  • Total difference 2.62 milliseconds for 2,885,900 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, "fcall", was:

/*
function do_something($i)
{
	for ($i = 0; $i < 20; $i++)
		$GLOBALS['dummy'] + $i;
}
*/

do_something(74);

The second test, "callback", was:

/*
function do_something($i)
{
	for ($i = 0; $i < 20; $i++)
		$GLOBALS['dummy'] + $i;
}
$GLOBALS['do_something_cb'] = 'do_something';
*/

$GLOBALS['do_something_cb'](74);

Running: Linux (x86_64:1 GB) PHP (7.2.25-1+ubuntu16.04.1+deb.sury.org+1)