adodb-perf.inc.php

Typo3, 开源里边最强大的

			if ($total<1) $total=1;
			return 100*($d_user+$d_nice+$d_system)/$total; 
		}
	}
	
	function Tracer($sql)
	{
        $perf_table = adodb_perf::table();
		$saveE = $this->conn->fnExecute;
		$this->conn->fnExecute = false;
		
		global $ADODB_FETCH_MODE;
		$save = $ADODB_FETCH_MODE;
		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
		if ($this->conn->fetchMode !== false) $savem = $this->conn->SetFetchMode(false);
				
		$sqlq = $this->conn->qstr($sql);
		$arr = $this->conn->GetArray(
"select count(*),tracer 
	from $perf_table where sql1=$sqlq 
	group by tracer
	order by 1 desc");
		$s = '';
		if ($arr) {
			$s .= '<h3>Scripts Affected</h3>';
			foreach($arr as $k) {
				$s .= sprintf("%4d",$k[0]).' &nbsp; '.strip_tags($k[1]).'<br>';
			}
		}
		
		if (isset($savem)) $this->conn->SetFetchMode($savem);
		$ADODB_CACHE_MODE = $save;
		$this->conn->fnExecute = $saveE;
		return $s;
	}

	/* 
		Explain Plan for $sql.
		If only a snippet of the $sql is passed in, then $partial will hold the crc32 of the 
			actual sql.
	*/
	function Explain($sql,$partial=false)
	{	
		return false;
	}
	
	function InvalidSQL($numsql = 10)
	{
	
		if (isset($_GET['sql'])) return;
		$s = '<h3>Invalid SQL</h3>';
		$saveE = $this->conn->fnExecute;
		$this->conn->fnExecute = false;
        $perf_table = adodb_perf::table();
		$rs =& $this->conn->SelectLimit("select distinct count(*),sql1,tracer as error_msg from $perf_table where tracer like 'ERROR:%' group by sql1,tracer order by 1 desc",$numsql);//,$numsql);
		$this->conn->fnExecute = $saveE;
		if ($rs) {
			$s .= rs2html($rs,false,false,false,false);
		} else
			return "<p>$this->helpurl. ".$this->conn->ErrorMsg()."</p>";
		
		return $s;
	}

	
	/*
		This script identifies the longest running SQL
	*/	
	function _SuspiciousSQL($numsql = 10)
	{
		global $ADODB_FETCH_MODE;
		
            $perf_table = adodb_perf::table();
			$saveE = $this->conn->fnExecute;
			$this->conn->fnExecute = false;
			
			if (isset($_GET['exps']) && isset($_GET['sql'])) {
				$partial = !empty($_GET['part']);
				echo "<a name=explain></a>".$this->Explain($_GET['sql'],$partial)."\n";
			}
			
			if (isset($_GET['sql'])) return;
			$sql1 = $this->sql1;
			
			$save = $ADODB_FETCH_MODE;
			$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
			if ($this->conn->fetchMode !== false) $savem = $this->conn->SetFetchMode(false);
			//$this->conn->debug=1;
			$rs =& $this->conn->SelectLimit(
			"select avg(timer) as avg_timer,$sql1,count(*),max(timer) as max_timer,min(timer) as min_timer
				from $perf_table
				where {$this->conn->upperCase}({$this->conn->substr}(sql0,1,5)) not in ('DROP ','INSER','COMMI','CREAT')
				and (tracer is null or tracer not like 'ERROR:%')
				group by sql1
				order by 1 desc",$numsql);
			if (isset($savem)) $this->conn->SetFetchMode($savem);
			$ADODB_FETCH_MODE = $save;
			$this->conn->fnExecute = $saveE;
			
			if (!$rs) return "<p>$this->helpurl. ".$this->conn->ErrorMsg()."</p>";
			$s = "<h3>Suspicious SQL</h3>
<font size=1>The following SQL have high average execution times</font><br>
<table border=1 bgcolor=white><tr><td><b>Avg Time</b><td><b>Count</b><td><b>SQL</b><td><b>Max</b><td><b>Min</b></tr>\n";
			$max = $this->maxLength;
			while (!$rs->EOF) {
				$sql = $rs->fields[1];
				$raw = urlencode($sql);
				if (strlen($raw)>$max-100) {
					$sql2 = substr($sql,0,$max-500);
					$raw = urlencode($sql2).'&part='.crc32($sql);
				}
				$prefix = "<a target=sql".rand()." href=\"?hidem=1&exps=1&sql=".$raw."&x#explain\">";
				$suffix = "</a>";
				if ($this->explain == false || strlen($prefix)>$max) {
					$suffix = ' ... <i>String too long for GET parameter: '.strlen($prefix).'</i>';
					$prefix = '';
				}
				$s .= "<tr><td>".adodb_round($rs->fields[0],6)."<td align=right>".$rs->fields[2]."<td><font size=-1>".$prefix.htmlspecialchars($sql).$suffix."</font>".
					"<td>".$rs->fields[3]."<td>".$rs->fields[4]."</tr>";
				$rs->MoveNext();
			}
			return $s."</table>";
		
	}
	
	function CheckMemory()
	{
		return '';
	}
	
	
	function SuspiciousSQL($numsql=10)
	{
		return adodb_perf::_SuspiciousSQL($numsql);
	}

	function ExpensiveSQL($numsql=10)
	{
		return adodb_perf::_ExpensiveSQL($numsql);
	}

	
	/*
		This reports the percentage of load on the instance due to the most 
		expensive few SQL statements. Tuning these statements can often 
		make huge improvements in overall system performance. 
	*/
	function _ExpensiveSQL($numsql = 10)
	{
		global $ADODB_FETCH_MODE;
		
            $perf_table = adodb_perf::table();
			$saveE = $this->conn->fnExecute;
			$this->conn->fnExecute = false;
			
			if (isset($_GET['expe']) && isset($_GET['sql'])) {
				$partial = !empty($_GET['part']);
				echo "<a name=explain></a>".$this->Explain($_GET['sql'],$partial)."\n";
			}
			
			if (isset($_GET['sql'])) return;
			
			$sql1 = $this->sql1;
			$save = $ADODB_FETCH_MODE;
			$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
			if ($this->conn->fetchMode !== false) $savem = $this->conn->SetFetchMode(false);
			
			$rs =& $this->conn->SelectLimit(
			"select sum(timer) as total,$sql1,count(*),max(timer) as max_timer,min(timer) as min_timer
				from $perf_table
				where {$this->conn->upperCase}({$this->conn->substr}(sql0,1,5))  not in ('DROP ','INSER','COMMI','CREAT')
				and (tracer is null or tracer not like 'ERROR:%')
				group by sql1
				having count(*)>1
				order by 1 desc",$numsql);
			if (isset($savem)) $this->conn->SetFetchMode($savem);
			$this->conn->fnExecute = $saveE;
			$ADODB_FETCH_MODE = $save;
			if (!$rs) return "<p>$this->helpurl. ".$this->conn->ErrorMsg()."</p>";
			$s = "<h3>Expensive SQL</h3>
<font size=1>Tuning the following SQL could reduce the server load substantially</font><br>
<table border=1 bgcolor=white><tr><td><b>Load</b><td><b>Count</b><td><b>SQL</b><td><b>Max</b><td><b>Min</b></tr>\n";
			$max = $this->maxLength;
			while (!$rs->EOF) {
				$sql = $rs->fields[1];
				$raw = urlencode($sql);
				if (strlen($raw)>$max-100) {
					$sql2 = substr($sql,0,$max-500);
					$raw = urlencode($sql2).'&part='.crc32($sql);
				}
				$prefix = "<a target=sqle".rand()." href=\"?hidem=1&expe=1&sql=".$raw."&x#explain\">";
				$suffix = "</a>";
				if($this->explain == false || strlen($prefix>$max)) {
					$prefix = '';
					$suffix = '';
				}
				$s .= "<tr><td>".adodb_round($rs->fields[0],6)."<td align=right>".$rs->fields[2]."<td><font size=-1>".$prefix.htmlspecialchars($sql).$suffix."</font>".
					"<td>".$rs->fields[3]."<td>".$rs->fields[4]."</tr>";
				$rs->MoveNext();
			}
			return $s."</table>";
	}
	
	/*
		Raw function to return parameter value from $settings.
	*/
	function DBParameter($param)
	{
		if (empty($this->settings[$param])) return false;
		$sql = $this->settings[$param][1];
		return $this->_DBParameter($sql);
	}
	
	/*
		Raw function returning array of poll paramters
	*/
	function &PollParameters()
	{
		$arr[0] = (float)$this->DBParameter('data cache hit ratio');
		$arr[1] = (float)$this->DBParameter('data reads');
		$arr[2] = (float)$this->DBParameter('data writes');
		$arr[3] = (integer) $this->DBParameter('current connections');
		return $arr;
	}
	
	/*
		Low-level Get Database Parameter
	*/
	function _DBParameter($sql)
	{
		$savelog = $this->conn->LogSQL(false);
		if (is_array($sql)) {
		global $ADODB_FETCH_MODE;
		
			$sql1 = $sql[0];
			$key = $sql[1];
			if (sizeof($sql)>2) $pos = $sql[2];
			else $pos = 1;
			if (sizeof($sql)>3) $coef = $sql[3];
			else $coef = false;
			$ret = false;
			$save = $ADODB_FETCH_MODE;
			$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
			if ($this->conn->fetchMode !== false) $savem = $this->conn->SetFetchMode(false);
			
			$rs = $this->conn->Execute($sql1);
			
			if (isset($savem)) $this->conn->SetFetchMode($savem);
			$ADODB_FETCH_MODE = $save;
			if ($rs) {
				while (!$rs->EOF) {
					$keyf = reset($rs->fields);
					if (trim($keyf) == $key) {
						$ret = $rs->fields[$pos];
						if ($coef) $ret *= $coef;
						break;
					}
					$rs->MoveNext();
				}
				$rs->Close();
			}
			$this->conn->LogSQL($savelog);
			return $ret;
		} else {
			if (strncmp($sql,'=',1) == 0) {
				$fn = substr($sql,1);
				return $this->$fn();
			}
			$sql = str_replace('$DATABASE',$this->conn->database,$sql);
			$ret = $this->conn->GetOne($sql);
			$this->conn->LogSQL($savelog);
			
			return $ret;
		}
	}
	
	/*
		Warn if cache ratio falls below threshold. Displayed in "Description" column.
	*/
	function WarnCacheRatio($val)
	{
		if ($val < $this->warnRatio) 
			 return '<font color=red><b>Cache ratio should be at least '.$this->warnRatio.'%</b></font>';
		else return '';
	}
	
	/***********************************************************************************************/
	//                                    HIGH LEVEL UI FUNCTIONS
	/***********************************************************************************************/

	
	function UI($pollsecs=5)
	{
	
    $perf_table = adodb_perf::table();
	$conn = $this->conn;
	
	$app = $conn->host;
	if ($conn->host && $conn->database) $app .= ', db=';
	$app .= $conn->database;
	
	if ($app) $app .= ', ';
	$savelog = $this->conn->LogSQL(false);	
	$info = $conn->ServerInfo();
	if (isset($_GET['clearsql'])) {
		$this->conn->Execute("delete from $perf_table");
	}
	$this->conn->LogSQL($savelog);
	
	// magic quotes
	
	if (isset($_GET['sql']) && get_magic_quotes_gpc()) {
		$_GET['sql'] = $_GET['sql'] = str_replace(array("\\'",'\"'),array("'",'"'),$_GET['sql']);
	}
	
	if (!isset($_SESSION['ADODB_PERF_SQL'])) $nsql = $_SESSION['ADODB_PERF_SQL'] = 10;
	else  $nsql = $_SESSION['ADODB_PERF_SQL'];
	
	$app .= $info['description'];
	
	
	if (isset($_GET['do'])) $do = $_GET['do'];
	else if (isset($_POST['do'])) $do = $_POST['do'];
	 else if (isset($_GET['sql'])) $do = 'viewsql';
	 else $do = 'stats';
	 
	if (isset($_GET['nsql'])) {
		if ($_GET['nsql'] > 0) $nsql = $_SESSION['ADODB_PERF_SQL'] = (integer) $_GET['nsql'];
	}
	echo "<title>ADOdb Performance Monitor on $app</title><body bgcolor=white>";
	if ($do == 'viewsql') $form = "<td><form># SQL:<input type=hidden value=viewsql name=do> <input type=text size=4 name=nsql value=$nsql><input type=submit value=Go></td></form>";
	else $form = "<td>&nbsp;</td>";
	
	$allowsql = !defined('ADODB_PERF_NO_RUN_SQL');
	
	if  (empty($_GET['hidem']))
	echo "<table border=1 width=100% bgcolor=lightyellow><tr><td colspan=2>
	<b><a href=http://adodb.sourceforge.net/?perf=1>ADOdb</a> Performance Monitor</b> <font size=1>for $app</font></tr><tr><td>
	<a href=?do=stats><b>Performance Stats</b></a> &nbsp; <a href=?do=viewsql><b>View SQL</b></a>
	 &nbsp; <a href=?do=tables><b>View Tables</b></a> &nbsp; <a href=?do=poll><b>Poll Stats</b></a>",
	 $allowsql ? ' &nbsp; <a href=?do=dosql><b>Run SQL</b></a>' : '',
	 "$form",
	 "</tr></table>";

	 
	 	switch ($do) {
		default:
		case 'stats':
			echo $this->HealthCheck();
			//$this->conn->debug=1;
			echo $this->CheckMemory();
			break;
		case 'poll':
			echo "<iframe width=720 height=80% 
				src=\"{$_SERVER['PHP_SELF']}?do=poll2&hidem=1\"></iframe>";
			break;