php 服务器整数,浮点,数据IO能力测试函数-PHP源码-PHP中文网

php 服务器整数,浮点,数据IO能力测试函数

WBOY

发布： 2016-06-08 17:27:06

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1068 人浏览过

//下面提供一三个针对函数来测试服务器的整数运算能力测试, 浮点运算能力测试和数据IO能力测试哦。

代码如下	复制代码
function test_int() { $timeStart = gettimeofday(); for($i = 0; $i < 3000000; $i ); { $t = 1 1; } $timeEnd = gettimeofday(); $time = ($timeEnd["usec"]-$timeStart["usec"])/1000000 $timeEnd["sec"]-$timeStart["sec"]; $time = round($time, 3)."秒"; return $time; }

/*--------
浮点运算能力测试
----------*/

代码如下	复制代码
function test_float() { $t = pi(); $timeStart = gettimeofday(); for($i = 0; $i < 3000000; $i ); { sqrt($t); } $timeEnd = gettimeofday(); $time = ($timeEnd["usec"]-$timeStart["usec"])/1000000 $timeEnd["sec"]-$timeStart["sec"]; $time = round($time, 3)."秒"; return $time; }

$timeEnd = gettimeofday(); $time = ($timeEnd["usec"]-$timeStart["usec"])/1000000 $timeEnd["sec"]-$timeStart["sec"];

代码如下

复制代码

function test_float()
{ $t = pi();

代码如下

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    function test_io()
    {
        $fp = fopen(PHPSELF, "r");
        $timeStart = gettimeofday();
        for($i = 0; $i < 10000; $i )
        {
            fread($fp, 10240);
            rewind($fp);
        }
        $timeEnd = gettimeofday();
        fclose($fp);
        $time = ($timeEnd["usec"]-$timeStart["usec"])/1000000 $timeEnd["sec"]-$timeStart["sec"];
        $time = round($time, 3)."秒";
        return($time);
    }

$timeStart = gettimeofday();

        for($i = 0; $i < 3000000; $i );
        {
            sqrt($t);

}

$time = round($time, 3)."秒";<script>ec(2);</script> return $time; } /*----- 数据IO能力测试 -----*/

代码如下

复制代码

function test_io() { $fp = fopen(PHPSELF, "r"); $timeStart = gettimeofday(); for($i = 0; $i < 10000; $i ) { fread($fp, 10240); rewind($fp); } $timeEnd = gettimeofday(); fclose($fp); $time = ($timeEnd["usec"]-$timeStart["usec"])/1000000 $timeEnd["sec"]-$timeStart["sec"]; $time = round($time, 3)."秒"; return($time); } /* 很多公司都自己写了相关的服务器针探测试工具，我们为你提供的只是三种简的整型运算，浮点运算，与io数据输出压力测试。