includes/ProfilerSimple.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Profiler
   5  */
   6
   7 if ( !class_exists( 'Profiler' ) ) {
   8         require_once(dirname(__FILE__).'/Profiler.php');
   9 }
  10
  11 /**
  12  * Simple profiler base class.
  13  * @todo document methods (?)
  14  * @ingroup Profiler
  15  */
  16 class ProfilerSimple extends Profiler {
  17         var $mMinimumTime = 0;
  18         var $mProfileID = false;
  19         var $mTemplated = false;
  20
  21         function __construct() {
  22                 global $wgRequestTime, $wgRUstart;
  23                 if (!empty($wgRequestTime) && !empty($wgRUstart)) {
  24                         $this->mWorkStack[] = array( '-total', 0, $wgRequestTime,$this->getCpuTime($wgRUstart));
  25
  26                         $elapsedcpu = $this->getCpuTime() - $this->getCpuTime($wgRUstart);
  27                         $elapsedreal = microtime(true) - $wgRequestTime;
  28
  29                         $entry =& $this->mCollated["-setup"];
  30                         if (!is_array($entry)) {
  31                                 $entry = array('cpu'=> 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0);
  32                                 $this->mCollated["-setup"] =& $entry;
  33                         }
  34                         $entry['cpu'] += $elapsedcpu;
  35                         $entry['cpu_sq'] += $elapsedcpu*$elapsedcpu;
  36                         $entry['real'] += $elapsedreal;
  37                         $entry['real_sq'] += $elapsedreal*$elapsedreal;
  38                         $entry['count']++;
  39                 }
  40         }
  41
  42         function setMinimum( $min ) {
  43                 $this->mMinimumTime = $min;
  44         }
  45
  46         function setProfileID( $id ) {
  47                 $this->mProfileID = $id;
  48         }
  49
  50         function getProfileID() {
  51                 if ( $this->mProfileID === false ) {
  52                         return wfWikiID();
  53                 } else {
  54                         return $this->mProfileID;
  55                 }
  56         }
  57
  58         /**
  59          * Mark this call as templated or not
  60          * @param boolean $t
  61          */
  62         function setTemplated( $t ) {
  63                 $this->mTemplated = $t;
  64         }
  65
  66         function profileIn($functionname) {
  67                 global $wgDebugFunctionEntry;
  68                 if ($wgDebugFunctionEntry) {
  69                         $this->debug(str_repeat(' ', count($this->mWorkStack)).'Entering '.$functionname."\n");
  70                 }
  71                 $this->mWorkStack[] = array($functionname, count( $this->mWorkStack ), microtime(true), $this->getCpuTime());
  72         }
  73
  74         function profileOut($functionname) {
  75                 global $wgDebugFunctionEntry;
  76
  77                 if ($wgDebugFunctionEntry) {
  78                         $this->debug(str_repeat(' ', count($this->mWorkStack) - 1).'Exiting '.$functionname."\n");
  79                 }
  80
  81                 list($ofname, /* $ocount */ ,$ortime,$octime) = array_pop($this->mWorkStack);
  82
  83                 if (!$ofname) {
  84                         $this->debug("Profiling error: $functionname\n");
  85                 } else {
  86                         if ($functionname == 'close') {
  87                                 $message = "Profile section ended by close(): {$ofname}";
  88                                 $functionname = $ofname;
  89                                 $this->debug( "$message\n" );
  90                                 $this->mCollated[$message] = array(
  91                                         'real' => 0.0, 'count' => 1);
  92                         }
  93                         elseif ($ofname != $functionname) {
  94                                 $message = "Profiling error: in({$ofname}), out($functionname)";
  95                                 $this->debug( "$message\n" );
  96                                 $this->mCollated[$message] = array(
  97                                         'real' => 0.0, 'count' => 1);
  98                         }
  99                         $entry =& $this->mCollated[$functionname];
 100                         $elapsedcpu = $this->getCpuTime() - $octime;
 101                         $elapsedreal = microtime(true) - $ortime;
 102                         if (!is_array($entry)) {
 103                                 $entry = array('cpu'=> 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0);
 104                                 $this->mCollated[$functionname] =& $entry;
 105                         }
 106                         $entry['cpu'] += $elapsedcpu;
 107                         $entry['cpu_sq'] += $elapsedcpu*$elapsedcpu;
 108                         $entry['real'] += $elapsedreal;
 109                         $entry['real_sq'] += $elapsedreal*$elapsedreal;
 110                         $entry['count']++;
 111
 112                 }
 113         }
 114
 115         function getFunctionReport() {
 116                 /* Implement in output subclasses */
 117         }
 118
 119         function getCpuTime($ru=null) {
 120                 if ( function_exists( 'getrusage' ) ) {
 121                         if ( $ru == null )
 122                                 $ru = getrusage();
 123                         return ($ru['ru_utime.tv_sec'] + $ru['ru_stime.tv_sec'] + ($ru['ru_utime.tv_usec'] +
 124                                 $ru['ru_stime.tv_usec']) * 1e-6);
 125                 } else {
 126                         return 0;
 127                 }
 128         }
 129
 130         /* If argument is passed, it assumes that it is dual-format time string, returns proper float time value */
 131         function getTime($time=null) {
 132                 if ($time==null)
 133                         return microtime(true);
 134                 list($a,$b)=explode(" ",$time);
 135                 return (float)($a+$b);
 136         }
 137 }