<?php
/**
- * @defgroup Profiler Profiler
+ * Base class and functions for profiling.
+ *
+ * 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
* This file is only included if profiling is enabled
*/
+/**
+ * @defgroup Profiler Profiler
+ */
+
/**
* Begin profiling of a function
* @param $functionname String: name of the function we will profile
return false;
}
+ /**
+ * Return whether this profiler stores data
+ *
+ * @see Profiler::logData()
+ * @return Boolean
+ */
+ public function isPersistent() {
+ return true;
+ }
+
public function setProfileID( $id ) {
$this->mProfileID = $id;
}
return sprintf( "%10s %s %s\n", trim( sprintf( "%7.3f", $delta * 1000.0 ) ), $space, $fname );
}
- function getTime() {
- if ( $this->mTimeMetric === 'user' ) {
- return $this->getUserTime();
+ /**
+ * Get the initial time of the request, based either on $wgRequestTime or
+ * $wgRUstart. Will return null if not able to find data.
+ *
+ * @param $metric string|false: metric to use, with the following possibilities:
+ * - user: User CPU time (without system calls)
+ * - cpu: Total CPU time (user and system calls)
+ * - wall (or any other string): elapsed time
+ * - false (default): will fall back to default metric
+ * @return float|null
+ */
+ function getTime( $metric = false ) {
+ if ( $metric === false ) {
+ $metric = $this->mTimeMetric;
+ }
+
+ if ( $metric === 'cpu' || $this->mTimeMetric === 'user' ) {
+ if ( !function_exists( 'getrusage' ) ) {
+ return 0;
+ }
+ $ru = getrusage();
+ $time = $ru['ru_utime.tv_sec'] + $ru['ru_utime.tv_usec'] / 1e6;
+ if ( $metric === 'cpu' ) {
+ # This is the time of system calls, added to the user time
+ # it gives the total CPU time
+ $time += $ru['ru_stime.tv_sec'] + $ru['ru_stime.tv_usec'] / 1e6;
+ }
+ return $time;
} else {
return microtime( true );
}
}
- function getUserTime() {
- $ru = getrusage();
- return $ru['ru_utime.tv_sec'] + $ru['ru_utime.tv_usec'] / 1e6;
- }
-
- private function getInitialTime() {
+ /**
+ * Get the initial time of the request, based either on $wgRequestTime or
+ * $wgRUstart. Will return null if not able to find data.
+ *
+ * @param $metric string|false: metric to use, with the following possibilities:
+ * - user: User CPU time (without system calls)
+ * - cpu: Total CPU time (user and system calls)
+ * - wall (or any other string): elapsed time
+ * - false (default): will fall back to default metric
+ * @return float|null
+ */
+ protected function getInitialTime( $metric = false ) {
global $wgRequestTime, $wgRUstart;
- if ( $this->mTimeMetric === 'user' ) {
- if ( count( $wgRUstart ) ) {
- return $wgRUstart['ru_utime.tv_sec'] + $wgRUstart['ru_utime.tv_usec'] / 1e6;
- } else {
+ if ( $metric === false ) {
+ $metric = $this->mTimeMetric;
+ }
+
+ if ( $metric === 'cpu' || $this->mTimeMetric === 'user' ) {
+ if ( !count( $wgRUstart ) ) {
return null;
}
+
+ $time = $wgRUstart['ru_utime.tv_sec'] + $wgRUstart['ru_utime.tv_usec'] / 1e6;
+ if ( $metric === 'cpu' ) {
+ # This is the time of system calls, added to the user time
+ # it gives the total CPU time
+ $time += $wgRUstart['ru_stime.tv_sec'] + $wgRUstart['ru_stime.tv_usec'] / 1e6;
+ }
+ return $time;
} else {
if ( empty( $wgRequestTime ) ) {
return null;
}
wfProfileOut( '-overhead-total' );
}
-
+
/**
* Counts the number of profiled function calls sitting under
* the given point in the call graph. Not the most efficient algo.
/**
* Log the whole profiling data into the database.
*/
- public function logData(){
+ public function logData() {
global $wgProfilePerHost, $wgProfileToDatabase;
# Do not log anything if database is readonly (bug 5375)
return;
}
- $errorState = $dbw->ignoreErrors( true );
-
if( $wgProfilePerHost ){
$pfhost = wfHostname();
} else {
$pfhost = '';
}
- $this->collateData();
-
- foreach( $this->mCollated as $name => $elapsed ){
- $eventCount = $this->mCalls[$name];
- $timeSum = (float) ($elapsed * 1000);
- $memorySum = (float)$this->mMemory[$name];
- $name = substr($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'));
+ try {
+ $this->collateData();
+
+ foreach( $this->mCollated as $name => $elapsed ){
+ $eventCount = $this->mCalls[$name];
+ $timeSum = (float) ($elapsed * 1000);
+ $memorySum = (float)$this->mMemory[$name];
+ $name = substr($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)";
}
- // 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)";
- }
-
- $dbw->ignoreErrors( $errorState );
+ } catch ( DBError $e ) {}
}
/**
wfDebug( $s );
}
}
+
+ /**
+ * Get the content type sent out to the client.
+ * Used for profilers that output instead of store data.
+ * @return string
+ */
+ protected function getContentType() {
+ foreach ( headers_list() as $header ) {
+ if ( preg_match( '#^content-type: (\w+/\w+);?#i', $header, $m ) ) {
+ return $m[1];
+ }
+ }
+ return null;
+ }
}
dépôts / lhc / web / wiklou.git / blobdiff