Test polyfill performance

.gitignore

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+/.idea
+/vendor
+/composer.lock

README.adoc

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+= Random polyfill performance
+
+All tests were run on PHP 7.4 except for native.
+
+== getInt(0, 65535)
+
+[%header,cols="3,2,2,2,2,2"]
+|===
+|Env
+|MT
+|MT (legacy)
+|Secure
+|PCG
+|xoshiro256**
+
+|Native (PHP 8.2)
+|0.1860
+|0.1731
+|2.5280
+|0.1879
+|0.1791
+
+|GMP
+|61.4810
+|52.3708
+|15.5489
+|51.1160
+|55.7959
+
+|brick/math + GMP
+|680.0640
+|544.2760
+|15.9061
+|552.4859
+|747.3629
+
+|brick/math + bcmath
+|3597.6019
+|3243.9330
+|14.3719
+|5762.5852
+|8369.9131
+
+|brick/math
+|2706.6810
+|2706.6810
+|14.2810
+|665554.69*
+|148175.72*
+|===
+
+* approximately, I used 100 iterations, then multipiled by 100
+
+== nextInt()
+
+[%header,cols="3,2,2,2,2,2"]
+|===
+|Env
+|MT
+|MT (legacy)
+|Secure
+|PCG
+|xoshiro256**
+
+|Native (PHP 8.2)
+|0.1109
+|0.1099
+|2.4838
+|0.1061
+|0.1271
+
+|GMP
+|40.9720
+|41.6300
+|19.0270
+|37.4460
+|42.7251
+
+|brick/math + GMP
+|526.6640
+|530.4639
+|80.7271
+|415.9460
+|610.4870
+
+|brick/math + bcmath
+|3252.0561
+|3229.5029
+|323.1668
+|5249.2309
+|8450.3100
+
+|brick/math
+|2383.1699
+|2419.9281
+|1266.5899
+|718118.50
+|149826.31
+|===

composer.json

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+{
+    "repositories": [{
+        "type": "vcs",
+        "url": "../random-polyfill"
+    }],
+    "require": {
+        "php": ">= 7.1",
+        "arokettu/random-polyfill": "dev-no-gmp"
+    }
+}

test.php

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+<?php
+
+use Random\Engine\Mt19937;
+use Random\Engine\PcgOneseq128XslRr64;
+use Random\Engine\Secure;
+use Random\Engine\Xoshiro256StarStar;
+use Random\Randomizer;
+
+require __DIR__ . '/vendor/autoload.php';
+
+// generate 10000 getInt and 10000 nextInt
+
+$engines = [
+    'mt' => new Mt19937(),
+    'mt_legacy' => new Mt19937(null, MT_RAND_PHP),
+    'secure' => new Secure(),
+    'pcg' => new PcgOneseq128XslRr64(),
+    'xoshiro' => new Xoshiro256StarStar(),
+];
+
+foreach ($engines as $name => $engine) {
+    $r = new Randomizer($engine);
+
+    $time = microtime(true);
+
+    for ($i = 0; $i < 10000; $i++) {
+        $r->getInt(0, 65535);
+    }
+
+    echo $name, ': getInt(): ', sprintf("%.4f", (microtime(true) - $time) * 1000), PHP_EOL;
+
+    $time = microtime(true);
+
+    for ($i = 0; $i < 10000; $i++) {
+        $r->nextInt();
+    }
+
+    echo $name, ': nextInt(): ', sprintf("%.4f", (microtime(true) - $time) * 1000), PHP_EOL;
+}