* @author Romain Quetiez * @author Denis Flaven * @license http://www.opensource.org/licenses/gpl-3.0.html LGPL */ class ExecutionKPI { static protected $m_bEnabled_Duration = false; static protected $m_bEnabled_Memory = false; static protected $m_aStats = array(); protected $m_fStarted = null; protected $m_iInitialMemory = null; static public function EnableDuration() { self::$m_bEnabled_Duration = true; } static public function EnableMemory() { self::$m_bEnabled_Memory = true; } static public function ReportStats() { foreach (self::$m_aStats as $sOperation => $aOpStats) { echo "

KPIs for $sOperation

\n"; $fTotalOp = 0; $iTotalOp = 0; $fMinOp = null; $fMaxOp = 0; echo "

Spent $sTimeDesc, on: $sArguments

\n"; echo "

Total: $iTotalOp (".round($fTotalOp, 3).")
Min: ".round($fMinOp, 3)."
Max: ".round($fMaxOp, 3)."
Avg: ".round($fTotalOp / $iTotalOp, 3)."

\n"; } } public function __construct() { $this->ResetCounters(); } // Get the duration since startup, and reset the counter for the next measure // public function ComputeAndReport($sOperationDesc) { if (self::$m_bEnabled_Duration) { $fStopped = MyHelpers::getmicrotime(); $fDuration = $fStopped - $this->m_fStarted; $this->Report($sOperationDesc.' / duration: '.round($fDuration, 3)); } if (self::$m_bEnabled_Memory) { $iMemory = self::memory_get_usage(); $iMemoryUsed = $iMemory - $this->m_iInitialMemory; $this->Report($sOperationDesc.' / memory: '.self::MemStr($iMemoryUsed).' (Total: '.self::MemStr($iMemory).')'); if (function_exists('memory_get_peak_usage')) { $iMemoryPeak = memory_get_peak_usage(); $this->Report($sOperationDesc.' / memory peak: '.self::MemStr($iMemoryPeak)); } } $this->ResetCounters(); } public function ComputeStats($sOperation, $sArguments) { if (self::$m_bEnabled_Duration) { $fStopped = MyHelpers::getmicrotime(); $fDuration = $fStopped - $this->m_fStarted; self::$m_aStats[$sOperation][$sArguments][] = $fDuration; } } protected function ResetCounters() { if (self::$m_bEnabled_Duration) { $this->m_fStarted = MyHelpers::getmicrotime(); } if (self::$m_bEnabled_Memory) { $this->m_iInitialMemory = self::memory_get_usage(); } } protected function Report($sText) { echo "$sText
\n"; } static protected function MemStr($iMemory) { return round($iMemory / 1024).' Kb'; } static protected function memory_get_usage() { if (function_exists('memory_get_usage')) { return memory_get_usage(true); } // Copied from the PHP manual // //If its Windows //Tested on Win XP Pro SP2. Should work on Win 2003 Server too //Doesn't work for 2000 //If you need it to work for 2000 look at http://us2.php.net/manual/en/function.memory-get-usage.php#54642 if (substr(PHP_OS,0,3) == 'WIN') { $output = array(); exec('tasklist /FI "PID eq ' . getmypid() . '" /FO LIST', $output); return preg_replace( '/[\D]/', '', $output[5] ) * 1024; } else { //We now assume the OS is UNIX //Tested on Mac OS X 10.4.6 and Linux Red Hat Enterprise 4 //This should work on most UNIX systems $pid = getmypid(); exec("ps -eo%mem,rss,pid | grep $pid", $output); $output = explode(" ", $output[0]); //rss is given in 1024 byte units return $output[1] * 1024; } } } class ApplicationStartupKPI extends ExecutionKPI { public function __construct() { global $fItopStarted; $this->m_fStarted = $fItopStarted; } } ?>