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-rw-r--r--maintenance/showCacheStats.php106
1 files changed, 106 insertions, 0 deletions
diff --git a/maintenance/showCacheStats.php b/maintenance/showCacheStats.php
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+<?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 );