maintenance/stats.php

   1 <?php
   2 /**
   3  * Show statistics from the cache
   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  * @ingroup Maintenance
  21  */
  22
  23 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  24
  25 class CacheStats extends Maintenance {
  26
  27         public function __construct() {
  28                 $this->mDescription = "Show statistics from the cache";
  29                 parent::__construct();
  30         }
  31
  32         public function getDbType() {
  33                 return Maintenance::DB_NONE;
  34         }
  35
  36         public function execute() {
  37                 global $wgMemc;
  38
  39                 // Can't do stats if
  40                 if ( get_class( $wgMemc ) == 'FakeMemCachedClient' ) {
  41                         $this->error( "You are running FakeMemCachedClient, I can not provide any statistics.", true );
  42                 }
  43                 $session = intval( $wgMemc->get( wfMemcKey( 'stats', 'request_with_session' ) ) );
  44                 $noSession = intval( $wgMemc->get( wfMemcKey( 'stats', 'request_without_session' ) ) );
  45                 $total = $session + $noSession;
  46                 if ( $total == 0 ) {
  47                         $this->error( "You either have no stats or the cache isn't running. Aborting.", true );
  48                 }
  49                 $this->output( "Requests\n" );
  50                 $this->output( sprintf( "with session:      %-10d %6.2f%%\n", $session, $session / $total * 100 ) );
  51                 $this->output( sprintf( "without session:   %-10d %6.2f%%\n", $noSession, $noSession / $total * 100 ) );
  52                 $this->output( sprintf( "total:             %-10d %6.2f%%\n", $total, 100 ) );
  53
  54
  55                 $this->output( "\nParser cache\n" );
  56                 $hits = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_hit' ) ) );
  57                 $invalid = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_invalid' ) ) );
  58                 $expired = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_expired' ) ) );
  59                 $absent = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_absent' ) ) );
  60                 $stub = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_stub' ) ) );
  61                 $total = $hits + $invalid + $expired + $absent + $stub;
  62                 $this->output( sprintf( "hits:              %-10d %6.2f%%\n", $hits, $hits / $total * 100 ) );
  63                 $this->output( sprintf( "invalid:           %-10d %6.2f%%\n", $invalid, $invalid / $total * 100 ) );
  64                 $this->output( sprintf( "expired:           %-10d %6.2f%%\n", $expired, $expired / $total * 100 ) );
  65                 $this->output( sprintf( "absent:            %-10d %6.2f%%\n", $absent, $absent / $total * 100 ) );
  66                 $this->output( sprintf( "stub threshold:    %-10d %6.2f%%\n", $stub, $stub / $total * 100 ) );
  67                 $this->output( sprintf( "total:             %-10d %6.2f%%\n", $total, 100 ) );
  68
  69                 $hits = intval( $wgMemc->get( wfMemcKey( 'stats', 'image_cache_hit' ) ) );
  70                 $misses = intval( $wgMemc->get( wfMemcKey( 'stats', 'image_cache_miss' ) ) );
  71                 $updates = intval( $wgMemc->get( wfMemcKey( 'stats', 'image_cache_update' ) ) );
  72                 $total = $hits + $misses;
  73                 $this->output( "\nImage cache\n" );
  74                 $this->output( sprintf( "hits:              %-10d %6.2f%%\n", $hits, $hits / $total * 100 ) );
  75                 $this->output( sprintf( "misses:            %-10d %6.2f%%\n", $misses, $misses / $total * 100 ) );
  76                 $this->output( sprintf( "updates:           %-10d\n", $updates ) );
  77
  78                 $hits = intval( $wgMemc->get( wfMemcKey( 'stats', 'diff_cache_hit' ) ) );
  79                 $misses = intval( $wgMemc->get( wfMemcKey( 'stats', 'diff_cache_miss' ) ) );
  80                 $uncacheable = intval( $wgMemc->get( wfMemcKey( 'stats', 'diff_uncacheable' ) ) );
  81                 $total = $hits + $misses + $uncacheable;
  82                 $this->output( "\nDiff cache\n" );
  83                 $this->output( sprintf( "hits:              %-10d %6.2f%%\n", $hits, $hits / $total * 100 ) );
  84                 $this->output( sprintf( "misses:            %-10d %6.2f%%\n", $misses, $misses / $total * 100 ) );
  85                 $this->output( sprintf( "uncacheable:       %-10d %6.2f%%\n", $uncacheable, $uncacheable / $total * 100 ) );
  86         }
  87 }
  88
  89 $maintClass = "CacheStats";
  90 require_once( DO_MAINTENANCE );