PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: float vs. integer addition

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Result: Saved

The test labeled "float" was the faster by 0.0371 seconds, (2.977% faster)

float 100%
integer 97.023%

The float test took 1.2091 seconds.
The integer test took 1.2462 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 183,698 loops for a total of 3,673,960 runs.

  • Line execution difference (0.000010) milliseconds.
  • Avg difference (1.855) milliseconds per 183,698 loops.
  • Total difference 37.10 milliseconds for 3,673,960 loops

The iteration variablity for Code 1 was (8.5159) milliseconds and Code 2 was (8.5704) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "float", was:

$GLOBALS['dummy'] = 0.0;
for ($j = 0; $j < 100; $j++)
	$GLOBALS['dummy'] += $GLOBALS['dummy_float'];

The second test, "integer", was:

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

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