Loop test to check memory usage.

ArtaxMemTest

<?php

$autoloader = require __DIR__.'/../vendor/autoload.php';

$artaxClient = new Amp\Artax\Client;

$previous = 0;

for ($x=0 ; $x<400 ; $x++) {
    $promises = [];
    $randomWord = md5(md5(time()).$x);
    //$request = "https://www.google.co.uk/search?q=".$randomWord;
    $request = "https://www.bing.com/search?q=".$randomWord;
    $promise = $artaxClient->request($request);
    $response = $promise->wait();

    $memUsage = memory_get_usage();
    
    echo "Memory current: ".$memUsage;//.", peak: ".memory_get_peak_usage();
    if ($previous) {
        echo " diff:".($memUsage - $previous);
    }
    echo "\n";

    $previous = $memUsage;
}

Output

Memory current: 2765928
Memory current: 2850744 diff:84816
Memory current: 2927920 diff:77176
Memory current: 3002664 diff:74744
Memory current: 3078192 diff:75528
Memory current: 3155176 diff:76984
Memory current: 3232184 diff:77008
Memory current: 3309064 diff:76880
Memory current: 3385352 diff:76288
Memory current: 3462096 diff:76744
Memory current: 3538608 diff:76512
Memory current: 3613680 diff:75072
Memory current: 3689456 diff:75776
Memory current: 3765008 diff:75552
Memory current: 3842104 diff:77096
Memory current: 3919384 diff:77280
Memory current: 3996064 diff:76680
Memory current: 4072880 diff:76816
Memory current: 4147008 diff:74128
Memory current: 4223584 diff:76576