includes/profiler/output/ProfilerOutputDb.php

   1 <?php
   2 /**
   3  * Profiler storing information in the DB.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Profiler
  22  */
  23
  24 /**
  25  * Logs profiling data into the local DB
  26  *
  27  * @ingroup Profiler
  28  * @since 1.25
  29  */
  30 class ProfilerOutputDb extends ProfilerOutput {
  31         public function canUse() {
  32                 # Do not log anything if database is readonly (bug 5375)
  33                 return !wfReadOnly();
  34         }
  35
  36         public function log( array $stats ) {
  37                 global $wgProfilePerHost;
  38
  39                 if ( $wgProfilePerHost ) {
  40                         $pfhost = wfHostname();
  41                 } else {
  42                         $pfhost = '';
  43                 }
  44
  45                 try {
  46                         $dbw = wfGetDB( DB_MASTER );
  47                         $useTrx = ( $dbw->getType() === 'sqlite' ); // much faster
  48                         if ( $useTrx ) {
  49                                 $dbw->startAtomic( __METHOD__ );
  50                         }
  51                         foreach ( $stats as $data ) {
  52                                 $name = $data['name'];
  53                                 $eventCount = $data['calls'];
  54                                 $timeSum = (float)$data['real'];
  55                                 $memorySum = (float)$data['memory'];
  56                                 $name = substr( $name, 0, 255 );
  57
  58                                 // Kludge
  59                                 $timeSum = $timeSum >= 0 ? $timeSum : 0;
  60                                 $memorySum = $memorySum >= 0 ? $memorySum : 0;
  61
  62                                 $dbw->upsert( 'profiling',
  63                                         array(
  64                                                 'pf_name' => $name,
  65                                                 'pf_count' => $eventCount,
  66                                                 'pf_time' => $timeSum,
  67                                                 'pf_memory' => $memorySum,
  68                                                 'pf_server' => $pfhost
  69                                         ),
  70                                         array( array( 'pf_name', 'pf_server' ) ),
  71                                         array(
  72                                                 "pf_count=pf_count+{$eventCount}",
  73                                                 "pf_time=pf_time+{$timeSum}",
  74                                                 "pf_memory=pf_memory+{$memorySum}",
  75                                         ),
  76                                         __METHOD__
  77                                 );
  78                         }
  79                         if ( $useTrx ) {
  80                                 $dbw->endAtomic( __METHOD__ );
  81                         }
  82                 } catch ( DBError $e ) {
  83                 }
  84         }
  85 }