includes/ProfilerSimple.php

   1 <?php
   2
   3 require_once(dirname(__FILE__).'/Profiler.php');
   4
   5 /**
   6  * Simple profiler base class.
   7  * @todo document methods (?)
   8  */
   9 class ProfilerSimple extends Profiler {
  10         var $mMinimumTime = 0;
  11         var $mProfileID = false;
  12
  13         function __construct() {
  14                 global $wgRequestTime,$wgRUstart;
  15                 if (!empty($wgRequestTime) && !empty($wgRUstart)) {
  16                         $this->mWorkStack[] = array( '-total', 0, $wgRequestTime,$this->getCpuTime($wgRUstart));
  17
  18                         $elapsedcpu = $this->getCpuTime() - $this->getCpuTime($wgRUstart);
  19                         $elapsedreal = microtime(true) - $wgRequestTime;
  20
  21                         $entry =& $this->mCollated["-setup"];
  22                         if (!is_array($entry)) {
  23                                 $entry = array('cpu'=> 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0);
  24                                 $this->mCollated["-setup"] =& $entry;
  25                         }
  26                         $entry['cpu'] += $elapsedcpu;
  27                         $entry['cpu_sq'] += $elapsedcpu*$elapsedcpu;
  28                         $entry['real'] += $elapsedreal;
  29                         $entry['real_sq'] += $elapsedreal*$elapsedreal;
  30                         $entry['count']++;
  31                 }
  32         }
  33
  34         function setMinimum( $min ) {
  35                 $this->mMinimumTime = $min;
  36         }
  37
  38         function setProfileID( $id ) {
  39                 $this->mProfileID = $id;
  40         }
  41
  42         function getProfileID() {
  43                 if ( $this->mProfileID === false ) {
  44                         return wfWikiID();
  45                 } else {
  46                         return $this->mProfileID;
  47                 }
  48         }
  49
  50         function profileIn($functionname) {
  51                 global $wgDebugFunctionEntry;
  52                 if ($wgDebugFunctionEntry) {
  53                         $this->debug(str_repeat(' ', count($this->mWorkStack)).'Entering '.$functionname."\n");
  54                 }
  55                 $this->mWorkStack[] = array($functionname, count( $this->mWorkStack ), microtime(true), $this->getCpuTime());
  56         }
  57
  58         function profileOut($functionname) {
  59                 global $wgDebugFunctionEntry;
  60
  61                 if ($wgDebugFunctionEntry) {
  62                         $this->debug(str_repeat(' ', count($this->mWorkStack) - 1).'Exiting '.$functionname."\n");
  63                 }
  64
  65                 list($ofname, /* $ocount */ ,$ortime,$octime) = array_pop($this->mWorkStack);
  66
  67                 if (!$ofname) {
  68                         $this->debug("Profiling error: $functionname\n");
  69                 } else {
  70                         if ($functionname == 'close') {
  71                                 $message = "Profile section ended by close(): {$ofname}";
  72                                 $functionname = $ofname;
  73                                 $this->debug( "$message\n" );
  74                         }
  75                         elseif ($ofname != $functionname) {
  76                                 $message = "Profiling error: in({$ofname}), out($functionname)";
  77                                 $this->debug( "$message\n" );
  78                         }
  79                         $entry =& $this->mCollated[$functionname];
  80                         $elapsedcpu = $this->getCpuTime() - $octime;
  81                         $elapsedreal = microtime(true) - $ortime;
  82                         if (!is_array($entry)) {
  83                                 $entry = array('cpu'=> 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0);
  84                                 $this->mCollated[$functionname] =& $entry;
  85                         }
  86                         $entry['cpu'] += $elapsedcpu;
  87                         $entry['cpu_sq'] += $elapsedcpu*$elapsedcpu;
  88                         $entry['real'] += $elapsedreal;
  89                         $entry['real_sq'] += $elapsedreal*$elapsedreal;
  90                         $entry['count']++;
  91
  92                 }
  93         }
  94
  95         function getFunctionReport() {
  96                 /* Implement in output subclasses */
  97         }
  98
  99         function getCpuTime($ru=null) {
 100                 if ( function_exists( 'getrusage' ) ) {
 101                         if ( $ru == null )
 102                                 $ru = getrusage();
 103                         return ($ru['ru_utime.tv_sec'] + $ru['ru_stime.tv_sec'] + ($ru['ru_utime.tv_usec'] +
 104                                 $ru['ru_stime.tv_usec']) * 1e-6);
 105                 } else {
 106                         return 0;
 107                 }
 108         }
 109
 110         /* If argument is passed, it assumes that it is dual-format time string, returns proper float time value */
 111         function getTime($time=null) {
 112                 if ($time==null)
 113                         return microtime(true);
 114                 list($a,$b)=explode(" ",$time);
 115                 return (float)($a+$b);
 116         }
 117
 118         function debug( $s ) {
 119                 if (function_exists( 'wfDebug' ) ) {
 120                         wfDebug( $s );
 121                 }
 122         }
 123 }
 124 ?>