bench.php

<?php

require 'vendor/autoload.php';

function inc($x) {
    return $x + 1;
}

function mul2($x) {
    return $x * 2;
}

define('ITERATIONS', 100000);

// ---

echo "compose without creation\n";
$composed = igorw\compose('mul2', 'inc');
$start = microtime(true);

for ($i = 0; $i < ITERATIONS; $i++) {
    $composed($i);
}

printf("%s ms\n", (microtime(true)-$start)*1000);
echo "---\n";
gc_collect_cycles();

// ---

echo "compose with creation\n";
$start = microtime(true);

for ($i = 0; $i < ITERATIONS; $i++) {
    $composed = igorw\compose('mul2', 'inc');
    $composed($i);
}

printf("%s ms\n", (microtime(true)-$start)*1000);
echo "---\n";
gc_collect_cycles();

// ---

echo "pipeline without creation\n";
$composed = igorw\pipeline('inc', 'mul2');
$start = microtime(true);

for ($i = 0; $i < ITERATIONS; $i++) {
    $composed($i);
}

printf("%s ms\n", (microtime(true)-$start)*1000);
echo "---\n";
gc_collect_cycles();

// ---

echo "pipeline with creation\n";
$start = microtime(true);

for ($i = 0; $i < ITERATIONS; $i++) {
    $composed = igorw\pipeline('inc', 'mul2');
    $composed($i);
}

printf("%s ms\n", (microtime(true)-$start)*1000);
echo "---\n";
gc_collect_cycles();

// ---

echo "raw\n";
$start = microtime(true);

for ($i = 0; $i < ITERATIONS; $i++) {
    mul2(inc($i));
}

printf("%s ms\n", (microtime(true)-$start)*1000);

results.txt

compose without creation
652.48799324036 ms
---
compose with creation
1575.2029418945 ms
---
pipeline without creation
664.56484794617 ms
---
pipeline with creation
2157.4680805206 ms
---
raw
167.42491722107 ms