PHP overlazyfying is evil Ilustrating cost of 1000 object instantiations on a large object (presenter) without constructor

test.php

<?php

require '/www/nette/Nette/loader.php';

class FooPresenter extends Nette\Application\UI\Presenter {}

$max = 1e3; // 1000

$foo = array_fill(1, $max, NULL);

$t = microtime(TRUE);
$m = memory_get_usage();

for ($i = 1; $i <= $max; ++$i) {
	$foo[$i] = new FooPresenter();
}

var_dump(microtime(TRUE) - $t);
var_dump(memory_get_usage() - $m);

zz-results

Without Zend Optimizer+:
float(0.0016729831695557)
int(609576)


With Zend Optimizer+:
float(0.0016708374023438)
int(610272)

-------------

Output?
Cost of an instantiation of a large object (Nette Presenter here) is about 0.000002 seconds and ~610 bytes.

PHP 5.4.12 (cli) (built: Mar 12 2013 20:34:45) 
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2013 Zend Technologies
    with Xdebug v2.2.1, Copyright (c) 2002-2012, by Derick Rethans
    with Zend Optimizer+ v7.0.0-dev, Copyright (c) 1999-2013, by Zend Technologies

---

new Nette\Forms\Form

double(0.035090923309326)
int(2907192)

---

new Nette\Application\UI\Presenter (bez injectu)

double(0.0015811920166016)
int(393128)

Updated pro Presenter (2.0.10) bez nastavení kontextu, předchozí verze zde.