php 服务器整数,浮点,数据IO能力测试函数

//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

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);     }

        $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。