PHP Benchmarks

Performance comparison of PHP code alternatives.

Test: ob_start vs. not (no output)

No Description

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Result: Discarded

The test labeled "ob_start()" was the faster by 0.0788 seconds, (6.601% faster)

ob_start() 100%
not 93.399%

The ob_start() test took 1.1144 seconds.
The not test took 1.1931 seconds.

Nitty-Gritty

Each test case ran 20 random code order iterations consisting of 292,796 loops for a total of 5,855,920 runs.

  • Line execution difference (0.000013) milliseconds.
  • Avg difference (3.938) milliseconds per 292,796 loops.
  • Total difference 78.76 milliseconds for 5,855,920 loops

The iteration variablity for Code 1 was (3.8879) milliseconds and Code 2 was (5.7086) milliseconds. The lower and the closer together there values are the more accurate the results are.

Code

The first test, "ob_start()", was:

ob_start();

for ($i = 0; $i < 20; $i++)
	$GLOBALS['dummy2'] = $i * 2;

ob_end_clean();

The second test, "not", was:

for ($i = 0; $i < 20; $i++)
	$GLOBALS['dummy2'] = $i * 2;

Running: Linux (x86_64:1 GB) PHP (7.2.34-18+ubuntu16.04.1+deb.sury.org+1)