[Sommaire] [Imprimer]

   1  <?php
   2  
   3  /* 
   4  V4.90 8 June 2006  (c) 2000-2006 John Lim (jlim#natsoft.com.my). All rights reserved.
   5    Released under both BSD license and Lesser GPL library license. 
   6    Whenever there is any discrepancy between the two licenses, 
   7    the BSD license will take precedence. See License.txt. 
   8    Set tabs to 4 for best viewing.
   9    
  10    Latest version is available at http://adodb.sourceforge.net
  11    
  12    Library for basic performance monitoring and tuning 
  13    
  14  */
  15  
  16  // security - hide paths
  17  if (!defined('ADODB_DIR')) die();
  18  
  19  /*
  20      MSSQL has moved most performance info to Performance Monitor
  21  */
  22  class perf_mssql extends adodb_perf{
  23      var $sql1 = 'cast(sql1 as text)';
  24      var $createTableSQL = "CREATE TABLE adodb_logsql (
  25            created datetime NOT NULL,
  26            sql0 varchar(250) NOT NULL,
  27            sql1 varchar(4000) NOT NULL,
  28            params varchar(3000) NOT NULL,
  29            tracer varchar(500) NOT NULL,
  30            timer decimal(16,6) NOT NULL
  31          )";
  32          
  33      var $settings = array(
  34      'Ratios',
  35          'data cache hit ratio' => array('RATIO',
  36              "select round((a.cntr_value*100.0)/b.cntr_value,2) from master.dbo.sysperfinfo a, master.dbo.sysperfinfo b where a.counter_name = 'Buffer cache hit ratio' and b.counter_name='Buffer cache hit ratio base'",
  37              '=WarnCacheRatio'),
  38          'prepared sql hit ratio' => array('RATIO',
  39              array('dbcc cachestats','Prepared',1,100),
  40              ''),
  41          'adhoc sql hit ratio' => array('RATIO',
  42              array('dbcc cachestats','Adhoc',1,100),
  43              ''),
  44      'IO',
  45          'data reads' => array('IO',
  46          "select cntr_value from master.dbo.sysperfinfo where counter_name = 'Page reads/sec'"),
  47          'data writes' => array('IO',
  48          "select cntr_value from master.dbo.sysperfinfo where counter_name = 'Page writes/sec'"),
  49              
  50      'Data Cache',
  51          'data cache size' => array('DATAC',
  52          "select cntr_value*8192 from master.dbo.sysperfinfo where counter_name = 'Total Pages' and object_name='SQLServer:Buffer Manager'",
  53              '' ),
  54          'data cache blocksize' => array('DATAC',
  55              "select 8192",'page size'),
  56      'Connections',
  57          'current connections' => array('SESS',
  58              '=sp_who',
  59              ''),
  60          'max connections' => array('SESS',
  61              "SELECT @@MAX_CONNECTIONS",
  62              ''),
  63  
  64          false
  65      );
  66      
  67      
  68  	function perf_mssql(&$conn)
  69      {
  70          if ($conn->dataProvider == 'odbc') {
  71              $this->sql1 = 'sql1';
  72              //$this->explain = false;
  73          }
  74          $this->conn =& $conn;
  75      }
  76      
  77  	function Explain($sql,$partial=false)
  78      {
  79          
  80          $save = $this->conn->LogSQL(false);
  81          if ($partial) {
  82              $sqlq = $this->conn->qstr($sql.'%');
  83              $arr = $this->conn->GetArray("select distinct sql1 from adodb_logsql where sql1 like $sqlq");
  84              if ($arr) {
  85                  foreach($arr as $row) {
  86                      $sql = reset($row);
  87                      if (crc32($sql) == $partial) break;
  88                  }
  89              }
  90          }
  91          
  92          $s = '<p><b>Explain</b>: '.htmlspecialchars($sql).'</p>';
  93          $this->conn->Execute("SET SHOWPLAN_ALL ON;");
  94          $sql = str_replace('?',"''",$sql);
  95          global $ADODB_FETCH_MODE;
  96          
  97          $save = $ADODB_FETCH_MODE;
  98          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
  99          $rs =& $this->conn->Execute($sql);
 100          //adodb_printr($rs);
 101          $ADODB_FETCH_MODE = $save;
 102          if ($rs) {
 103              $rs->MoveNext();
 104              $s .= '<table bgcolor=white border=0 cellpadding="1" callspacing=0><tr><td nowrap align=center> Rows<td nowrap align=center> IO<td nowrap align=center> CPU<td align=left> &nbsp; &nbsp; Plan</tr>';
 105              while (!$rs->EOF) {
 106                  $s .= '<tr><td>'.round($rs->fields[8],1).'<td>'.round($rs->fields[9],3).'<td align=right>'.round($rs->fields[10],3).'<td nowrap><pre>'.htmlspecialchars($rs->fields[0])."</td></pre></tr>\n"; ## NOTE CORRUPT </td></pre> tag is intentional!!!!
 107                  $rs->MoveNext();
 108              }
 109              $s .= '</table>';
 110              
 111              $rs->NextRecordSet();
 112          }
 113          
 114          $this->conn->Execute("SET SHOWPLAN_ALL OFF;");
 115          $this->conn->LogSQL($save);
 116          $s .= $this->Tracer($sql);
 117          return $s;
 118      }
 119      
 120  	function Tables()
 121      {
 122      global $ADODB_FETCH_MODE;
 123      
 124          $save = $ADODB_FETCH_MODE;
 125          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 126          //$this->conn->debug=1;
 127          $s = '<table border=1 bgcolor=white><tr><td><b>tablename</b></td><td><b>size_in_k</b></td><td><b>index size</b></td><td><b>reserved size</b></td></tr>';
 128          $rs1 = $this->conn->Execute("select distinct name from sysobjects where xtype='U'");
 129          if ($rs1) {
 130              while (!$rs1->EOF) {
 131                  $tab = $rs1->fields[0];
 132                  $tabq = $this->conn->qstr($tab);
 133                  $rs2 = $this->conn->Execute("sp_spaceused $tabq");
 134                  if ($rs2) {
 135                      $s .= '<tr><td>'.$tab.'</td><td align=right>'.$rs2->fields[3].'</td><td align=right>'.$rs2->fields[4].'</td><td align=right>'.$rs2->fields[2].'</td></tr>';
 136                      $rs2->Close();
 137                  }
 138                  $rs1->MoveNext();
 139              }
 140              $rs1->Close();
 141          }
 142          $ADODB_FETCH_MODE = $save;
 143          return $s.'</table>';
 144      }
 145      
 146  	function sp_who()
 147      {
 148          $arr = $this->conn->GetArray('sp_who');
 149          return sizeof($arr);
 150      }
 151      
 152  	function HealthCheck($cli=false)
 153      {
 154          
 155          $this->conn->Execute('dbcc traceon(3604)');
 156          $html =  adodb_perf::HealthCheck($cli);
 157          $this->conn->Execute('dbcc traceoff(3604)');
 158          return $html;
 159      }
 160      
 161      
 162  }
 163  
 164  ?>