mirror of
https://github.com/Combodo/iTop.git
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402 lines
12 KiB
PHP
402 lines
12 KiB
PHP
<?php
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// Copyright (C) 2010-2012 Combodo SARL
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//
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// This file is part of iTop.
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//
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// iTop is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// iTop 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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with iTop. If not, see <http://www.gnu.org/licenses/>
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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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* @copyright Copyright (C) 2010-2012 Combodo SARL
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* @license http://opensource.org/licenses/AGPL-3.0
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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_bBlameCaller = false;
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static protected $m_sAllowedUser = '*';
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static protected $m_aStats = array(); // Recurrent operations
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static protected $m_aExecData = array(); // One shot operations
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protected $m_fStarted = null;
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protected $m_iInitialMemory = null;
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static public function EnableDuration($iLevel)
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{
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if ($iLevel > 0)
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{
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self::$m_bEnabled_Duration = true;
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if ($iLevel > 1)
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{
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self::$m_bBlameCaller = true;
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}
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}
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}
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static public function EnableMemory($iLevel)
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{
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if ($iLevel > 0)
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{
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self::$m_bEnabled_Memory = true;
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}
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}
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/**
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* @param string sUser A user login or * for all users
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*/
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static public function SetAllowedUser($sUser)
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{
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self::$m_sAllowedUser = $sUser;
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}
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static public function IsEnabled()
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{
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if (self::$m_bEnabled_Duration || self::$m_bEnabled_Memory)
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{
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if ((self::$m_sAllowedUser == '*') || (UserRights::GetUser() == trim(self::$m_sAllowedUser)))
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{
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return true;
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}
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}
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return false;
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}
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static public function GetDescription()
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{
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$aFeatures = array();
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if (self::$m_bEnabled_Duration) $aFeatures[] = 'Duration';
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if (self::$m_bEnabled_Memory) $aFeatures[] = 'Memory usage';
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$sFeatures = implode(', ', $aFeatures);
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$sFor = self::$m_sAllowedUser == '*' ? 'EVERYBODY' : "'".trim(self::$m_sAllowedUser)."'";
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return "KPI logging is active for $sFor. Measures: $sFeatures";
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}
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static public function ReportStats()
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{
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if (!self::IsEnabled()) return;
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global $fItopStarted;
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$sExecId = microtime(); // id to differentiate the hrefs!
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$aBeginTimes = array();
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foreach (self::$m_aExecData as $aOpStats)
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{
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$aBeginTimes[] = $aOpStats['time_begin'];
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}
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array_multisort($aBeginTimes, self::$m_aExecData);
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$sTableStyle = 'background-color: #ccc; margin: 10px;';
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self::Report("<hr/>");
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self::Report("<div style=\"background-color: grey; padding: 10px;\">");
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self::Report("<h3><a name=\"".md5($sExecId)."\">KPIs</a> - ".$_SERVER['REQUEST_URI']." (".$_SERVER['REQUEST_METHOD'].")</h3>");
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self::Report("<p>".date('Y-m-d H:i:s', $fItopStarted)."</p>");
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self::Report("<p>log_kpi_user_id: ".MetaModel::GetConfig()->Get('log_kpi_user_id')."</p>");
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self::Report("<div>");
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self::Report("<table border=\"1\" style=\"$sTableStyle\">");
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self::Report("<thead>");
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self::Report(" <th>Operation</th><th>Begin</th><th>End</th><th>Duration</th><th>Memory start</th><th>Memory end</th><th>Memory peak</th>");
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self::Report("</thead>");
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foreach (self::$m_aExecData as $aOpStats)
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{
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$sOperation = $aOpStats['op'];
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$sBegin = round($aOpStats['time_begin'], 3);
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$sEnd = round($aOpStats['time_end'], 3);
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$fDuration = $aOpStats['time_end'] - $aOpStats['time_begin'];
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$sDuration = round($fDuration, 3);
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$sMemBegin = 'n/a';
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$sMemEnd = 'n/a';
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$sMemPeak = 'n/a';
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if (isset($aOpStats['mem_begin']))
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{
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$sMemBegin = self::MemStr($aOpStats['mem_begin']);
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$sMemEnd = self::MemStr($aOpStats['mem_end']);
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if (isset($aOpStats['mem_peak']))
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{
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$sMemPeak = self::MemStr($aOpStats['mem_peak']);
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}
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}
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self::Report("<tr>");
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self::Report(" <td>$sOperation</td><td>$sBegin</td><td>$sEnd</td><td>$sDuration</td><td>$sMemBegin</td><td>$sMemEnd</td><td>$sMemPeak</td>");
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self::Report("</tr>");
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}
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self::Report("</table>");
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self::Report("</div>");
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$aConsolidatedStats = array();
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foreach (self::$m_aStats as $sOperation => $aOpStats)
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{
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$fTotalOp = 0;
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$iTotalOp = 0;
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$fMinOp = null;
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$fMaxOp = 0;
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$sMaxOpArguments = null;
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foreach ($aOpStats as $sArguments => $aEvents)
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{
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foreach ($aEvents as $aEventData)
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{
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$fDuration = $aEventData['time'];
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$fTotalOp += $fDuration;
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$iTotalOp++;
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$fMinOp = is_null($fMinOp) ? $fDuration : min($fMinOp, $fDuration);
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if ($fDuration > $fMaxOp)
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{
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$sMaxOpArguments = $sArguments;
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$fMaxOp = $fDuration;
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}
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}
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}
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$aConsolidatedStats[$sOperation] = array(
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'count' => $iTotalOp,
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'duration' => $fTotalOp,
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'min' => $fMinOp,
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'max' => $fMaxOp,
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'avg' => $fTotalOp / $iTotalOp,
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'max_args' => $sMaxOpArguments
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);
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}
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self::Report("<div>");
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self::Report("<table border=\"1\" style=\"$sTableStyle\">");
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self::Report("<thead>");
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self::Report(" <th>Operation</th><th>Count</th><th>Duration</th><th>Min</th><th>Max</th><th>Avg</th>");
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self::Report("</thead>");
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foreach ($aConsolidatedStats as $sOperation => $aOpStats)
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{
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$sOperation = '<a href="#'.md5($sExecId.$sOperation).'">'.$sOperation.'</a>';
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$sCount = $aOpStats['count'];
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$sDuration = round($aOpStats['duration'], 3);
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$sMin = round($aOpStats['min'], 3);
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$sMax = '<a href="#'.md5($sExecId.$aOpStats['max_args']).'">'.round($aOpStats['max'], 3).'</a>';
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$sAvg = round($aOpStats['avg'], 3);
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self::Report("<tr>");
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self::Report(" <td>$sOperation</td><td>$sCount</td><td>$sDuration</td><td>$sMin</td><td>$sMax</td><td>$sAvg</td>");
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self::Report("</tr>");
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}
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self::Report("</table>");
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self::Report("</div>");
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self::Report("</div>");
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self::Report("<p><a href=\"#end-".md5($sExecId)."\">Next page stats</a></p>");
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// Report operation details
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foreach (self::$m_aStats as $sOperation => $aOpStats)
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{
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$sOperationHtml = '<a name="'.md5($sExecId.$sOperation).'">'.$sOperation.'</a>';
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self::Report("<h4>$sOperationHtml</h4>");
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self::Report("<table border=\"1\" style=\"$sTableStyle\">");
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self::Report("<thead>");
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self::Report(" <th>Operation details (+ blame caller if log_kpi_duration = 2)</th><th>Count</th><th>Duration</th><th>Min</th><th>Max</th>");
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self::Report("</thead>");
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foreach ($aOpStats as $sArguments => $aEvents)
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{
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$sHtmlArguments = '<a name="'.md5($sExecId.$sArguments).'"><div style="white-space: pre-wrap;">'.$sArguments.'</div></a>';
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if ($aConsolidatedStats[$sOperation]['max_args'] == $sArguments)
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{
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$sHtmlArguments = '<span style="color: red;">'.$sHtmlArguments.'</span>';
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}
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if (isset($aEvents[0]['callers']))
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{
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$sHtmlArguments .= '<div style="padding: 10px;">';
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$sHtmlArguments .= '<table border="1" bgcolor="#cfc">';
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$sHtmlArguments .= '<tr><td colspan="2" bgcolor="#e9b96">Call stack for the <b>FIRST</b> caller</td></tr>';
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foreach ($aEvents[0]['callers'] as $aCall)
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{
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$sHtmlArguments .= '<tr>';
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$sHtmlArguments .= '<td>'.$aCall['Function'].'</td>';
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$sHtmlArguments .= '<td>'.$aCall['File'].':'.$aCall['Line'].'</td>';
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$sHtmlArguments .= '</tr>';
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}
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$sHtmlArguments .= '</table>';
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$sHtmlArguments .= '</div>';
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}
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$fTotalInter = 0;
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$fMinInter = null;
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$fMaxInter = 0;
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foreach ($aEvents as $aEventData)
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{
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$fDuration = $aEventData['time'];
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$fTotalInter += $fDuration;
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$fMinInter = is_null($fMinInter) ? $fDuration : min($fMinInter, $fDuration);
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$fMaxInter = max($fMaxInter, $fDuration);
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}
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$iCountInter = count($aEvents);
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$sTotalInter = round($fTotalInter, 3);
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$sMinInter = round($fMinInter, 3);
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$sMaxInter = round($fMaxInter, 3);
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self::Report("<tr>");
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self::Report(" <td>$sHtmlArguments</td><td>$iCountInter</td><td>$sTotalInter</td><td>$sMinInter</td><td>$sMaxInter</td>");
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self::Report("</tr>");
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}
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self::Report("</table>");
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self::Report("<p><a href=\"#".md5($sExecId)."\">Back to page stats</a></p>");
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}
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self::Report('<a name="end-'.md5($sExecId).'"> </a>');
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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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global $fItopStarted;
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$aNewEntry = null;
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if (self::$m_bEnabled_Duration)
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{
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$fStopped = MyHelpers::getmicrotime();
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$aNewEntry = array(
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'op' => $sOperationDesc,
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'time_begin' => $this->m_fStarted - $fItopStarted,
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'time_end' => $fStopped - $fItopStarted,
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);
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// Reset for the next operation (if the object is recycled)
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$this->m_fStarted = $fStopped;
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}
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if (self::$m_bEnabled_Memory)
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{
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$iCurrentMemory = self::memory_get_usage();
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if (is_null($aNewEntry))
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{
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$aNewEntry = array('op' => $sOperationDesc);
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}
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$aNewEntry['mem_begin'] = $this->m_iInitialMemory;
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$aNewEntry['mem_end'] = $iCurrentMemory;
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if (function_exists('memory_get_peak_usage'))
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{
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$aNewEntry['mem_peak'] = memory_get_peak_usage();
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}
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// Reset for the next operation (if the object is recycled)
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$this->m_iInitialMemory = $iCurrentMemory;
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}
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if (!is_null($aNewEntry))
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{
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self::$m_aExecData[] = $aNewEntry;
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}
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$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 - $this->m_fStarted;
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if (self::$m_bBlameCaller)
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{
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self::$m_aStats[$sOperation][$sArguments][] = array(
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'time' => $fDuration,
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'callers' => MyHelpers::get_callstack(1),
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);
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}
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else
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{
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self::$m_aStats[$sOperation][$sArguments][] = array(
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'time' => $fDuration
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);
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}
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}
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}
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protected function ResetCounters()
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{
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if (self::$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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$this->m_iInitialMemory = self::memory_get_usage();
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}
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}
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const HtmlReportFile = 'log/kpi.html';
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static protected function Report($sText)
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{
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file_put_contents(APPROOT.self::HtmlReportFile, "$sText\n", FILE_APPEND | LOCK_EX);
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}
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static protected function MemStr($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 $output[1] * 1024;
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}
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}
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static public function memory_get_peak_usage($bRealUsage = false)
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{
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if (function_exists('memory_get_peak_usage'))
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{
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return memory_get_peak_usage($bRealUsage);
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}
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// PHP > 5.2.1 - this verb depends on a compilation option
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return 0;
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}
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}
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