PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: float vs. integer multiplication

No Description

View test history (7) Run this test again Return to test menu

Result: Discarded

The test labeled "float" was the faster by 0.019 seconds, (1.803% faster)

float 100%
integer 98.197%

The float test took 1.0363 seconds.
The integer test took 1.0554 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 247,159 loops for a total of 4,943,180 runs.

  • Line execution difference (0.000004) milliseconds.
  • Avg difference (0.951) milliseconds per 247,159 loops.
  • Total difference 19.03 milliseconds for 4,943,180 loops

The iteration variablity for Code 1 was (3.1383) milliseconds and Code 2 was (3.6142) 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)