Let's have a look at how we might benchmark and subsequently tune a PHP server.
We will use two machines. A client machine to run our HTTP load program
(http_load from acme.com) and a P4 1.7G server with 256M of RAM. We will also
be using 3 freely available opcode caches:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>Simple PHP Benchmark</title></head>
<body>
<h1>String Manipulation</h1>
<p>
<?php
$str = 'This is just a silly benchmark that doesn\'t do anything useful.';
$str .= 'Here we are just uppercasing the first two characters of every word ';
$str .= 'in this long string';
$parts = explode(' ',$str);
foreach($parts as $part) {
$new[] = strtoupper(substr($part,0,2)).substr($part,2);
}
echo implode(' ',$new);
?>
</p>
<h1>Including 2 files</h1>
<p>
<?php
include './bench_include1.inc';
include './bench_include2.inc';
?>
</p>
<h1>for-loop and calling a function many times</h1>
<p>
<?php
$a = range(1,200);
$b = range(200,1);
for($i=0; $i<200; $i++) {
echo foo($a[$i],$b[$i]);
}
?>
</p>
<h1>Define and Instantiate an object and call some methods</h2>
<p>
<?php
class test_class {
var $test_var1;
var $test_var2;
var $test_var3;
var $test_var4;
function test_class($arg1, $arg2) {
echo "Constructor args: $arg1, $arg2<br />\n";
}
function set_var1($value) {
$this->test_var1 = $value;
echo "test_var1 property set to $value<br />\n";
return true;
}
function set_var2($value) {
$this->test_var2 = $value;
echo "test_var2 property set to $value<br />\n";
return true;
}
function set_var3($value) {
$this->test_var3 = $value;
echo "test_var3 property set to $value<br />\n";
return true;
}
function set_var4($value) {
$this->test_var4 = $value;
echo "test_var4 property set to $value<br />\n";
return true;
}
function disp() {
echo "<pre>";
var_dump($this);
echo "</pre>";
}
}
$obj = new test_class(1,'arg2');
$obj->set_var1('test1');
$obj->set_var2(123);
$obj->set_var3($a); /* Array from previous test */
$obj->set_var4(array(1,2,3,4,5,6,7,8,9));
$obj->disp();
?>
</p>
</body>
</html>
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