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Improved the internal KPI reporting tools
SVN:trunk[722]
This commit is contained in:
Romain Quetiez
167
core/kpi.class.inc.php
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167
core/kpi.class.inc.php
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<?php
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// Copyright (C) 2010 Combodo SARL
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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; version 3 of the License.
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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
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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/**
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* Measures operations duration, memory usage, etc. (and some other KPIs)
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*
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* @author Erwan Taloc <erwan.taloc@combodo.com>
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* @author Romain Quetiez <romain.quetiez@combodo.com>
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* @author Denis Flaven <denis.flaven@combodo.com>
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* @license http://www.opensource.org/licenses/gpl-3.0.html LGPL
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*/
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class ExecutionKPI
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{
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static protected $m_bEnabled_Duration = false;
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static protected $m_bEnabled_Memory = false;
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static protected $m_aStats = array();
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protected $m_fStarted = null;
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protected $m_iInitialMemory = null;
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static public function EnableDuration()
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{
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self::$m_bEnabled_Duration = true;
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}
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static public function EnableMemory()
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{
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self::$m_bEnabled_Memory = true;
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}
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static public function ReportStats()
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{
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foreach (self::$m_aStats as $sOperation => $aOpStats)
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{
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echo "====================<br/>\n";
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echo "KPIs for $sOperation<br/>\n";
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echo "====================<br/>\n";
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$fTotalOp = 0;
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$iTotalOp = 0;
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foreach ($aOpStats as $sArguments => $aEvents)
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{
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$fTotalInter = 0;
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$iTotalInter = 0;
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foreach ($aEvents as $fDuration)
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{
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$fTotalInter += $fDuration;
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$iTotalInter++;
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}
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$fTotalOp += $fTotalInter;
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$iTotalOp++;
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echo "$sArguments: $iTotalInter (".round($fTotalInter, 3).")<br/>\n";
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}
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echo "Total: $iTotalOp (".round($fTotalOp, 3).")<br/>\n";
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echo "====================<br/>\n";
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}
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}
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public function __construct()
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{
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$this->ResetCounters();
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}
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// Get the duration since startup, and reset the counter for the next measure
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//
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public function ComputeAndReport($sOperationDesc)
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{
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if (self::$m_bEnabled_Duration)
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{
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$fStopped = MyHelpers::getmicrotime();
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$fDuration = $fStopped - $this->m_fStarted;
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$this->Report($sOperationDesc.' / duration: '.round($fDuration, 3));
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}
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if (self::$m_bEnabled_Memory)
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{
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$iMemory = self::memory_get_usage();
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$iMemoryUsed = $iMemory - $this->m_iInitialMemory;
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$this->Report($sOperationDesc.' / memory: '.self::MemStr($iMemoryUsed).' (Total: '.self::MemStr($iMemory).')');
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}
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$this->ResetCounters();
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}
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public function ComputeStats($sOperation, $sArguments)
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{
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if (self::$m_bEnabled_Duration)
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{
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$fStopped = MyHelpers::getmicrotime();
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$fDuration = $fStopped - $this->m_fStarted;
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self::$m_aStats[$sOperation][$sArguments][] = $fDuration;
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}
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}
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protected function ResetCounters()
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{
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if (self::$m_bEnabled_Duration)
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{
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$this->m_fStarted = MyHelpers::getmicrotime();
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}
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if (self::$m_bEnabled_Memory)
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{
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$this->m_iInitialMemory = self::memory_get_usage();
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}
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}
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protected function Report($sText)
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{
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echo "$sText<br/>\n";
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}
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static protected function MemStr($iMemory)
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{
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return round($iMemory / 1024).' Kb';
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}
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static protected function memory_get_usage()
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{
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if (function_exists('memory_get_usage'))
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{
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return memory_get_usage(true);
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}
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// Copied from the PHP manual
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//
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//If its Windows
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//Tested on Win XP Pro SP2. Should work on Win 2003 Server too
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//Doesn't work for 2000
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//If you need it to work for 2000 look at http://us2.php.net/manual/en/function.memory-get-usage.php#54642
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if (substr(PHP_OS,0,3) == 'WIN')
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{
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$output = array();
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exec('tasklist /FI "PID eq ' . getmypid() . '" /FO LIST', $output);
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return preg_replace( '/[\D]/', '', $output[5] ) * 1024;
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}
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else
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{
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//We now assume the OS is UNIX
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//Tested on Mac OS X 10.4.6 and Linux Red Hat Enterprise 4
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//This should work on most UNIX systems
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$pid = getmypid();
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exec("ps -eo%mem,rss,pid | grep $pid", $output);
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$output = explode(" ", $output[0]);
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//rss is given in 1024 byte units
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return $output[1] * 1024;
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}
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}
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}
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?>
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