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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
*
* @ingroup Maintenance
*/
require_once( dirname(__FILE__) . '/Maintenance.php' );
class CacheStats extends Maintenance {
public function __construct() {
$this->mDescription = "Show statistics from the cache";
}
public function execute() {
global $wgMemc;
// Can't do stats if
if( get_class( $wgMemc ) == 'FakeMemCachedClient' ) {
$this->error( "You are running FakeMemCachedClient, 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')));
$invalid = intval($wgMemc->get(wfMemcKey('stats','pcache_miss_invalid')));
$expired = intval($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 + $invalid + $expired + $absent + $stub;
$this->output( sprintf( "hits: %-10d %6.2f%%\n", $hits, $hits/$total*100 ) );
$this->output( sprintf( "invalid: %-10d %6.2f%%\n", $invalid, $invalid/$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 ) );
$hits = intval($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;
$this->output("\nImage cache\n");
$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 ) );
$hits = intval($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;
$this->output("\nDiff cache\n");
$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 ) );
}
}
$maintClass = "CacheStats";
require_once( DO_MAINTENANCE );
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