214b9a8d40
* allow specifying different profiler types * add ProfilerSimple (that for now just builds in-memory profiling structure, may be extended to write it somewhere)
70 lines
1.8 KiB
PHP
Executable file
70 lines
1.8 KiB
PHP
Executable file
<?php
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/**
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* Simple profiler base class
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* @package MediaWiki
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*/
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/**
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* @todo document
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* @package MediaWiki
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*/
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class ProfilerSimple extends Profiler {
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function profileIn($functionname) {
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global $wgDebugFunctionEntry;
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if ($wgDebugFunctionEntry && function_exists('wfDebug')) {
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wfDebug(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(), $this->getCpuTime());
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}
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function profileOut($functionname) {
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$memory = memory_get_usage();
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global $wgDebugFunctionEntry;
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if ($wgDebugFunctionEntry && function_exists('wfDebug')) {
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wfDebug(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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wfDebug("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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wfDebug( "$message\n" );
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}
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elseif ($ofname != $functionname) {
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$message = "Profiling error: in({$ofname}), out($functionname)";
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wfDebug( "$message\n" );
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}
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$entry =& $this->mCollated[$functionname];
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$elapsedcpu = $this->getCpuTime() - $octime;
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$elapsedreal = $this->getTime() - $ortime;
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$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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$entry['count']++;
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}
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}
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function getFunctionReport() {
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/* Implement in output subclasses */
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}
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function getCpuTime() {
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$ru=getrusage();
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return ($ru['ru_utime.tv_sec']+$ru['ru_stime.tv_sec']+($ru['ru_utime.tv_usec']+$ru['ru_stime.tv_usec'])*1e-6);
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}
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function getTime() {
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list($a,$b)=explode(" ",microtime());
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return (float)($a+$b);
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}
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}
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?>
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