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Diffstat (limited to 'includes/profiler/ProfilerSimpleDB.php')
-rw-r--r-- | includes/profiler/ProfilerSimpleDB.php | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/includes/profiler/ProfilerSimpleDB.php b/includes/profiler/ProfilerSimpleDB.php new file mode 100644 index 00000000..7ef0ad05 --- /dev/null +++ b/includes/profiler/ProfilerSimpleDB.php @@ -0,0 +1,111 @@ +<?php +/** + * Profiler storing information in the DB. + * + * 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 Profiler + */ + +/** + * $wgProfiler['class'] = 'ProfilerSimpleDB'; + * + * @ingroup Profiler + */ +class ProfilerSimpleDB extends ProfilerStandard { + protected function collateOnly() { + return true; + } + + public function isPersistent() { + return true; + } + + /** + * Log the whole profiling data into the database. + */ + public function logData() { + global $wgProfilePerHost; + + # Do not log anything if database is readonly (bug 5375) + if ( wfReadOnly() ) { + return; + } + + if ( $wgProfilePerHost ) { + $pfhost = wfHostname(); + } else { + $pfhost = ''; + } + + try { + $this->collateData(); + + $dbw = wfGetDB( DB_MASTER ); + $useTrx = ( $dbw->getType() === 'sqlite' ); // much faster + if ( $useTrx ) { + $dbw->startAtomic( __METHOD__ ); + } + foreach ( $this->mCollated as $name => $data ) { + $eventCount = $data['count']; + $timeSum = (float)( $data['real'] * 1000 ); + $memorySum = (float)$data['memory']; + $name = substr( $name, 0, 255 ); + + // Kludge + $timeSum = $timeSum >= 0 ? $timeSum : 0; + $memorySum = $memorySum >= 0 ? $memorySum : 0; + + $dbw->update( 'profiling', + array( + "pf_count=pf_count+{$eventCount}", + "pf_time=pf_time+{$timeSum}", + "pf_memory=pf_memory+{$memorySum}", + ), + array( + 'pf_name' => $name, + 'pf_server' => $pfhost, + ), + __METHOD__ ); + + $rc = $dbw->affectedRows(); + if ( $rc == 0 ) { + $dbw->insert( 'profiling', + array( + 'pf_name' => $name, + 'pf_count' => $eventCount, + 'pf_time' => $timeSum, + 'pf_memory' => $memorySum, + 'pf_server' => $pfhost + ), + __METHOD__, + array( 'IGNORE' ) + ); + } + // When we upgrade to mysql 4.1, the insert+update + // can be merged into just a insert with this construct added: + // "ON DUPLICATE KEY UPDATE ". + // "pf_count=pf_count + VALUES(pf_count), ". + // "pf_time=pf_time + VALUES(pf_time)"; + } + if ( $useTrx ) { + $dbw->endAtomic( __METHOD__ ); + } + } catch ( DBError $e ) { + } + } +} |