Find how much RAM a Laravel app instance is using?-CodePudding

I need to figure out how much RAM/CPU a particular Laravel app is using, but so far the current code shows the entire system's usage.

How can I, instead, check how much RAM/CPU only one Laravel app is using? (kind of how the Windows task manager shows each program's CPU/RAM usage- but for web apps instead [particularly Laravel, but vanilla PHP solutions are welcome])

Current code below...

web.php:

...
Route::get('/details', function () {
    //RAM usage
    $free = shell_exec('free'); 
    $free = (string) trim($free);
    $free_arr = explode("\n", $free);
    $mem = explode(" ", $free_arr[1]);
    $mem = array_filter($mem);
    $mem = array_merge($mem);
    $usedmem = $mem[2];
    $usedmemInGB = number_format($usedmem / 1048576, 2) . ' GB';
    $memory1 = $mem[2] / $mem[1] * 100;
    $memory = round($memory1) . '%';
    $fh = fopen('/proc/meminfo', 'r');
    $mem = 0;
    while ($line = fgets($fh)) {
        $pieces = array();
        if (preg_match('/^MemTotal:\s (\d )\skB$/', $line, $pieces)) {
            $mem = $pieces[1];
            break;
        }
    }
    fclose($fh);
    $totalram = number_format($mem / 1048576, 2) . ' GB';
    
    //cpu usage
    $cpu_load = sys_getloadavg(); 
    $load = $cpu_load[0] . '% / 100%';
    
    return view('details',compact('memory','totalram','usedmemInGB','load'));
});
...

details.blade.php:

<html>
<head>
  <link href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
  <div >
    <h2 >Current RAM Usage</h2>
    <div >
      <div  style="width: {{$memory}}">
        <span >{{$memory}}</span>
      </div>
    </div>
    <span >{{$usedmemInGB}} / {{$totalram}} ({{$memory}})</span>  

  </div>

  <div >
    <h2 >Current CPU Usage</h2>
    <div >
      <div  style="width: {{$load}}">
        <span >{{$load}}</span>
      </div>
    </div>
    <span >{{$load}}</span>   
  </div>

</body>
</html>

CodePudding user response：

Do not use Laravel to detect how much resources is Laravel consuming from your server resources, instead I would use server monitoring tools.

htop

Is a very good command that we can use to detect what apps are using our server the most and how much!

Now if you are good with servers, I advise you to use

CodePudding user response：

You could get the memory usage of you web server thread, not exactly what you need but very close.

Suppose you use linux system (tested on my CentOS7 XAMPP environment):

$pid = getmypid();
exec("ps -eo%mem,rss,pid | grep $pid", $output);
$output = explode("  ", $output[0]);
dd($output[1]); // result in kB

For windows (tested on my Win10 XAMPP environment):

$output = array();
exec( 'tasklist /FI "PID eq ' . getmypid() . '" /FO LIST', $output );
dd($output[5]); // result in kB