php-benchmark
PHP Benchmark
Tool to compare different functions in PHP
Install
Via Composer
composer require lavoiesl/php-benchmark
Usage
<?php $benchmark = new LavoieslPhpBenchmarkBenchmark(); $benchmark->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
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.
A simple trick is the return the value, the AbstractTest
stores it temporarily.
To ensure proper tick analysis, use declare(ticks = 1);
as early as possible.
See the memory test.
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.
You can change this by forcing it with $benchmark->setCount($n)
or change the time with $benchmark->guessCount($max_seconds)
.
Writing custom tests
You can extend AbstractTest
and provide your own wrapper.
For an example of this, see the command test and the corresponding class.
A full example can be seen here:
https://github.com/lavoiesl/php-cache-comparison