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133 lines
3.9 KiB
PHP
133 lines
3.9 KiB
PHP
<?php
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/**
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* Base class for simple profiling.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Profiler
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*/
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/**
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* Simple profiler base class.
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* @todo document methods (?)
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* @ingroup Profiler
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*/
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class ProfilerSimple extends Profiler {
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var $mMinimumTime = 0;
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var $zeroEntry = array( 'cpu' => 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0 );
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var $errorEntry;
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public function isPersistent() {
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/* Implement in output subclasses */
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return false;
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}
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protected function addInitialStack() {
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$this->errorEntry = $this->zeroEntry;
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$this->errorEntry['count'] = 1;
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$initialTime = $this->getInitialTime();
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$initialCpu = $this->getInitialTime( 'cpu' );
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if ( $initialTime !== null && $initialCpu !== null ) {
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$this->mWorkStack[] = array( '-total', 0, $initialTime, $initialCpu );
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$this->mWorkStack[] = array( '-setup', 1, $initialTime, $initialCpu );
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$this->profileOut( '-setup' );
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} else {
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$this->profileIn( '-total' );
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}
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}
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function setMinimum( $min ) {
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$this->mMinimumTime = $min;
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}
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function profileIn( $functionname ) {
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global $wgDebugFunctionEntry;
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if ( $wgDebugFunctionEntry ) {
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$this->debug( str_repeat( ' ', count( $this->mWorkStack ) ) . 'Entering ' . $functionname . "\n" );
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}
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$this->mWorkStack[] = array( $functionname, count( $this->mWorkStack ), $this->getTime(), $this->getTime( 'cpu' ) );
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}
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function profileOut( $functionname ) {
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global $wgDebugFunctionEntry;
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if ( $wgDebugFunctionEntry ) {
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$this->debug( str_repeat( ' ', count( $this->mWorkStack ) - 1 ) . 'Exiting ' . $functionname . "\n" );
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}
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list( $ofname, /* $ocount */, $ortime, $octime ) = array_pop( $this->mWorkStack );
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if ( !$ofname ) {
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$this->debug( "Profiling error: $functionname\n" );
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} else {
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if ( $functionname == 'close' ) {
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$message = "Profile section ended by close(): {$ofname}";
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$functionname = $ofname;
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$this->debug( "$message\n" );
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$this->mCollated[$message] = $this->errorEntry;
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}
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elseif ( $ofname != $functionname ) {
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$message = "Profiling error: in({$ofname}), out($functionname)";
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$this->debug( "$message\n" );
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$this->mCollated[$message] = $this->errorEntry;
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}
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$entry =& $this->mCollated[$functionname];
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$elapsedcpu = $this->getTime( 'cpu' ) - $octime;
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$elapsedreal = $this->getTime() - $ortime;
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if ( !is_array( $entry ) ) {
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$entry = $this->zeroEntry;
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$this->mCollated[$functionname] =& $entry;
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}
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$entry['cpu'] += $elapsedcpu;
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$entry['cpu_sq'] += $elapsedcpu * $elapsedcpu;
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$entry['real'] += $elapsedreal;
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$entry['real_sq'] += $elapsedreal * $elapsedreal;
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$entry['count']++;
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$this->updateTrxProfiling( $functionname, $elapsedreal );
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}
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}
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public function getFunctionReport() {
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/* Implement in output subclasses */
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return '';
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}
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public function logData() {
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/* Implement in subclasses */
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}
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/**
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* Get the actual CPU time or the initial one if $ru is set.
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*
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* @deprecated in 1.20
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* @return float|null
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*/
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function getCpuTime( $ru = null ) {
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wfDeprecated( __METHOD__, '1.20' );
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if ( $ru === null ) {
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return $this->getTime( 'cpu' );
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} else {
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# It theory we should use $ru here, but it always $wgRUstart that is passed here
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return $this->getInitialTime( 'cpu' );
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}
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}
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}
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