php pear Benchmark_PHP tutorial

Benchmark

Basic information

Version: 1.2.9

Release date: 2011-12-11 13:02 UTC

Description: A framework for testing the performance of php scripts (Framework to benchmark PHP scripts or function calls. )
Download: Benchmark pear

Installation and Configuration

After downloading the file, unzip the file directory structure as follows:

Running timer_example.php displays the following effect:

Function usage

Timer.php

Main functions:

$timer->start() start mark is equivalent to $timer->setMarker("start')

$timer->setMarker('mark'); mark the time and percentage between this mark and the previous mark when returning to the page $timer->stop() end mark is equivalent to $timer->setMarker('stop')
$timer->display(); Output to page

Test the performance comparison between is_file and file_exists

<?php

require 'Benchmark/Timer.php';

$filename='C:\Users\baixinxing\Desktop\Benchmark-1.2.9\Benchmark-1.2.9\README';

$timer = new Benchmark_Timer();
$timer->start();
for ($index = 0; $index < 10000; $index++) {
    //判断给定文件名是否为一个正常的文件
    is_file($filename);
}
$timer->setMarker('is_file');
for ($index = 0; $index < 10000; $index++) {
    //检查文件或目录是否存在
    file_exists($filename);
}
$timer->setMarker('file_exists');
$timer->stop();
$timer->display();

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function get() returns the execution time and average time of each function

<?php

require_once 'Benchmark/Iterate.php';

$benchmark = new Benchmark_Iterate;

class MyClass {

    function foo() {
        for ($index = 0; $index < 100; $index++) {
            $a=null;
            if (null === $a);
        }
    }

}

$o = new MyClass();

$benchmark->run(5, 'o->foo', 'test');
$result = $benchmark->get();
var_dump($result);
?>

http://www.bkjia.com/PHPjc/755791.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/755791.htmlTechArticleBenchmark Basic information Version: 1.2.9 Release date: 2011-12-11 13:02 UTC Description: Test php Framework to benchmark PHP scripts or function calls. )...