lavoiesl/php-benchmark

Tool to compare different functions in PHP

PHP Benchmark

Tool to compare different functions in PHP, _(*1)

Install

Via Composer, _(*2)

composer require lavoiesl/php-benchmark

Usage

add('md5',   function() { return md5('test');   });
$benchmark->add('sha1',  function() { return sha1('test');  });

$benchmark->run();
?>

You can run $benchmark->run(false) to get results without any output, _(*3)

Notes about memory usage

Memory usage is monitored using register_tick_function but this does not do a good job at analysing small statements since the memory gets cleaned too quickly., _(*4)

A simple trick is the return the value, the AbstractTest stores it temporarily., _(*5)

To ensure proper tick analysis, use declare(ticks = 1); as early as possible., _(*6)

See the memory test., _(*7)

Output

Running tests 3000 times.
Testing 2/2 : sha1

Test       Time   Time (%)   Memory   Memory (%)
md5     1304 ms                 0 B
sha1    2077 ms       59 %      0 B

Optimal test count guessing

By default, Benchmark will try to find an optimal number of runs so that each test takes a maximum of 2 seconds., _(*8)

You can change this by forcing it with $benchmark->setCount($n) or change the time with $benchmark->guessCount($max_seconds)., _(*9)

Writing custom tests

You can extend AbstractTest and provide your own wrapper., _(*10)

For an example of this, see the command test and the corresponding class., _(*11)

A full example can be seen here: https://github.com/lavoiesl/php-cache-comparison, _(*12)