ProfilerSimple.php

Go to the documentation of this file.

<?php
class ProfilerSimple extends Profiler {
    var $mMinimumTime = 0;

    var $zeroEntry = array( 'cpu' => 0.0, 'cpu_sq' => 0.0, 'real' => 0.0, 'real_sq' => 0.0, 'count' => 0 );
    var $errorEntry;

    public function isPersistent() {
        /* Implement in output subclasses */
        return false;
    }

    protected function addInitialStack() {
        $this->errorEntry = $this->zeroEntry;
        $this->errorEntry['count'] = 1;

        $initialTime = $this->getInitialTime();
        $initialCpu = $this->getInitialTime( 'cpu' );
        if ( $initialTime !== null && $initialCpu !== null ) {
            $this->mWorkStack[] = array( '-total', 0, $initialTime, $initialCpu );
            $this->mWorkStack[] = array( '-setup', 1, $initialTime, $initialCpu );

            $this->profileOut( '-setup' );
        } else {
            $this->profileIn( '-total' );
        }
    }

    function setMinimum( $min ) {
        $this->mMinimumTime = $min;
    }

    function profileIn( $functionname ) {
        global $wgDebugFunctionEntry;
        if ( $wgDebugFunctionEntry ) {
            $this->debug( str_repeat( ' ', count( $this->mWorkStack ) ) . 'Entering ' . $functionname . "\n" );
        }
        $this->mWorkStack[] = array( $functionname, count( $this->mWorkStack ), $this->getTime(), $this->getTime( 'cpu' ) );
    }

    function profileOut( $functionname ) {
        global $wgDebugFunctionEntry;

        if ( $wgDebugFunctionEntry ) {
            $this->debug( str_repeat( ' ', count( $this->mWorkStack ) - 1 ) . 'Exiting ' . $functionname . "\n" );
        }

        list( $ofname, /* $ocount */, $ortime, $octime ) = array_pop( $this->mWorkStack );

        if ( !$ofname ) {
            $this->debug( "Profiling error: $functionname\n" );
        } else {
            if ( $functionname == 'close' ) {
                $message = "Profile section ended by close(): {$ofname}";
                $functionname = $ofname;
                $this->debug( "$message\n" );
                $this->mCollated[$message] = $this->errorEntry;
            }
            elseif ( $ofname != $functionname ) {
                $message = "Profiling error: in({$ofname}), out($functionname)";
                $this->debug( "$message\n" );
                $this->mCollated[$message] = $this->errorEntry;
            }
            $entry =& $this->mCollated[$functionname];
            $elapsedcpu = $this->getTime( 'cpu' ) - $octime;
            $elapsedreal = $this->getTime() - $ortime;
            if ( !is_array( $entry ) ) {
                $entry = $this->zeroEntry;
                $this->mCollated[$functionname] =& $entry;
            }
            $entry['cpu'] += $elapsedcpu;
            $entry['cpu_sq'] += $elapsedcpu * $elapsedcpu;
            $entry['real'] += $elapsedreal;
            $entry['real_sq'] += $elapsedreal * $elapsedreal;
            $entry['count']++;

            $this->updateTrxProfiling( $functionname, $elapsedreal );
        }
    }

    public function getFunctionReport() {
        /* Implement in output subclasses */
        return '';
    }

    public function logData() {
        /* Implement in subclasses */
    }

    function getCpuTime( $ru = null ) {
        wfDeprecated( __METHOD__, '1.20' );

        if ( $ru === null ) {
            return $this->getTime( 'cpu' );
        } else {
            # It theory we should use $ru here, but it always $wgRUstart that is passed here
            return $this->getInitialTime( 'cpu' );
        }
    }
}