MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / includes / profiler / output / ProfilerOutputDb.php

diff --git a/includes/profiler/output/ProfilerOutputDb.php b/includes/profiler/output/ProfilerOutputDb.php
new file mode 100644 (file)
index 0000000..2225e3f
--- /dev/null
+++ b/includes/profiler/output/ProfilerOutputDb.php
@@ -0,0 +1,93 @@
+<?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
+ */
+
+use Wikimedia\Rdbms\DBError;
+
+/**
+ * Logs profiling data into the local DB
+ *
+ * @ingroup Profiler
+ * @since 1.25
+ */
+class ProfilerOutputDb extends ProfilerOutput {
+       /** @var bool Whether to store host data with profiling calls */
+       private $perHost = false;
+
+       public function __construct( Profiler $collector, array $params ) {
+               parent::__construct( $collector, $params );
+
+               // Initialize per-host profiling from config, back-compat if available
+               if ( isset( $this->params['perHost'] ) ) {
+                       $this->perHost = $this->params['perHost'];
+               }
+       }
+
+       public function canUse() {
+               # Do not log anything if database is readonly (T7375)
+               return !wfReadOnly();
+       }
+
+       public function log( array $stats ) {
+               $pfhost = $this->perHost ? wfHostname() : '';
+
+               try {
+                       $dbw = wfGetDB( DB_MASTER );
+                       $useTrx = ( $dbw->getType() === 'sqlite' ); // much faster
+                       if ( $useTrx ) {
+                               $dbw->startAtomic( __METHOD__ );
+                       }
+                       foreach ( $stats as $data ) {
+                               $name = $data['name'];
+                               $eventCount = $data['calls'];
+                               $timeSum = (float)$data['real'];
+                               $memorySum = (float)$data['memory'];
+                               $name = substr( $name, 0, 255 );
+
+                               // Kludge
+                               $timeSum = $timeSum >= 0 ? $timeSum : 0;
+                               $memorySum = $memorySum >= 0 ? $memorySum : 0;
+
+                               $dbw->upsert( 'profiling',
+                                       [
+                                               'pf_name' => $name,
+                                               'pf_count' => $eventCount,
+                                               'pf_time' => $timeSum,
+                                               'pf_memory' => $memorySum,
+                                               'pf_server' => $pfhost
+                                       ],
+                                       [ [ 'pf_name', 'pf_server' ] ],
+                                       [
+                                               "pf_count=pf_count+{$eventCount}",
+                                               "pf_time=pf_time+{$timeSum}",
+                                               "pf_memory=pf_memory+{$memorySum}",
+                                       ],
+                                       __METHOD__
+                               );
+                       }
+                       if ( $useTrx ) {
+                               $dbw->endAtomic( __METHOD__ );
+                       }
+               } catch ( DBError $e ) {
+               }
+       }
+}