diff options
Diffstat (limited to 'maintenance/showCacheStats.php')
| -rw-r--r-- | maintenance/showCacheStats.php | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/maintenance/showCacheStats.php b/maintenance/showCacheStats.php new file mode 100644 index 00000000..8f238680 --- /dev/null +++ b/maintenance/showCacheStats.php @@ -0,0 +1,106 @@ +<?php +/** + * Show statistics from the cache. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * http://www.gnu.org/copyleft/gpl.html + * + * @file + * @ingroup Maintenance + */ + +require_once( __DIR__ . '/Maintenance.php' ); + +/** + * Maintenance script that shows statistics from the cache. + * + * @ingroup Maintenance + */ +class ShowCacheStats extends Maintenance { + + public function __construct() { + $this->mDescription = "Show statistics from the cache"; + parent::__construct(); + } + + public function getDbType() { + return Maintenance::DB_NONE; + } + + public function execute() { + global $wgMemc; + + // Can't do stats if + if ( get_class( $wgMemc ) == 'EmptyBagOStuff' ) { + $this->error( "You are running EmptyBagOStuff, I can not provide any statistics.", true ); + } + $session = intval( $wgMemc->get( wfMemcKey( 'stats', 'request_with_session' ) ) ); + $noSession = intval( $wgMemc->get( wfMemcKey( 'stats', 'request_without_session' ) ) ); + $total = $session + $noSession; + if ( $total == 0 ) { + $this->error( "You either have no stats or the cache isn't running. Aborting.", true ); + } + $this->output( "Requests\n" ); + $this->output( sprintf( "with session: %-10d %6.2f%%\n", $session, $session / $total * 100 ) ); + $this->output( sprintf( "without session: %-10d %6.2f%%\n", $noSession, $noSession / $total * 100 ) ); + $this->output( sprintf( "total: %-10d %6.2f%%\n", $total, 100 ) ); + + + $this->output( "\nParser cache\n" ); + $hits = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_hit' ) ) ); + $expired = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_expired' ) ) ); + $absent = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_absent' ) ) ); + $stub = intval( $wgMemc->get( wfMemcKey( 'stats', 'pcache_miss_stub' ) ) ); + $total = $hits + $expired + $absent + $stub; + if ( $total ) { + $this->output( sprintf( "hits: %-10d %6.2f%%\n", $hits, $hits / $total * 100 ) ); + $this->output( sprintf( "expired: %-10d %6.2f%%\n", $expired, $expired / $total * 100 ) ); + $this->output( sprintf( "absent: %-10d %6.2f%%\n", $absent, $absent / $total * 100 ) ); + $this->output( sprintf( "stub threshold: %-10d %6.2f%%\n", $stub, $stub / $total * 100 ) ); + $this->output( sprintf( "total: %-10d %6.2f%%\n", $total, 100 ) ); + } else { + $this->output( "no statistics available\n" ); + } + + $this->output( "\nImage cache\n" ); + $hits = intval( $wgMemc->get( wfMemcKey( 'stats', 'image_cache_hit' ) ) ); + $misses = intval( $wgMemc->get( wfMemcKey( 'stats', 'image_cache_miss' ) ) ); + $updates = intval( $wgMemc->get( wfMemcKey( 'stats', 'image_cache_update' ) ) ); + $total = $hits + $misses; + if ( $total ) { + $this->output( sprintf( "hits: %-10d %6.2f%%\n", $hits, $hits / $total * 100 ) ); + $this->output( sprintf( "misses: %-10d %6.2f%%\n", $misses, $misses / $total * 100 ) ); + $this->output( sprintf( "updates: %-10d\n", $updates ) ); + } else { + $this->output( "no statistics available\n" ); + } + + $this->output( "\nDiff cache\n" ); + $hits = intval( $wgMemc->get( wfMemcKey( 'stats', 'diff_cache_hit' ) ) ); + $misses = intval( $wgMemc->get( wfMemcKey( 'stats', 'diff_cache_miss' ) ) ); + $uncacheable = intval( $wgMemc->get( wfMemcKey( 'stats', 'diff_uncacheable' ) ) ); + $total = $hits + $misses + $uncacheable; + if ( $total ) { + $this->output( sprintf( "hits: %-10d %6.2f%%\n", $hits, $hits / $total * 100 ) ); + $this->output( sprintf( "misses: %-10d %6.2f%%\n", $misses, $misses / $total * 100 ) ); + $this->output( sprintf( "uncacheable: %-10d %6.2f%%\n", $uncacheable, $uncacheable / $total * 100 ) ); + } else { + $this->output( "no statistics available\n" ); + } + } +} + +$maintClass = "ShowCacheStats"; +require_once( RUN_MAINTENANCE_IF_MAIN ); |