PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: multiply vs. add

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Historical Results

Based on (1) saved test runs, The test labeled "multiply" was (on average) the faster by 0.0129 seconds, (1.214% faster)

multiply 100%
add 98.786%

The multiply test took 1.0477 seconds.
The add test took 1.0606 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 286,741 loops for a total of 5,734,820 runs.

  • Line execution difference (0.000002) milliseconds.
  • Avg difference (0.000) milliseconds per 286,741 loops.
  • Total difference 12.87 milliseconds for 5,734,820 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, "multiply", was:

$GLOBALS['dummy'] = 0;
for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy'] = $GLOBALS['dummy_int'] * 2;

The second test, "add", was:

$GLOBALS['dummy'] = 0;
for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy'] = $GLOBALS['dummy_int'] + $GLOBALS['dummy_int'];

Running: Linux (x86_64:1 GB) PHP (7.2.19-1+ubuntu16.04.1+deb.sury.org+1)