You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
3.2 KiB
109 lines
3.2 KiB
2 years ago
|
<?php
|
||
|
|
/*
|
||
|
|
@version v5.20.9 21-Dec-2016
|
||
|
|
@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved.
|
||
|
|
@copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community
|
||
|
|
Released under both BSD license and Lesser GPL library license.
|
||
|
|
Whenever there is any discrepancy between the two licenses,
|
||
|
|
the BSD license will take precedence. See License.txt.
|
||
|
|
Set tabs to 4 for best viewing.
|
||
|
|
|
||
|
|
Latest version is available at http://adodb.sourceforge.net
|
||
|
|
|
||
|
|
Library for basic performance monitoring and tuning
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
// security - hide paths
|
||
|
|
if (!defined('ADODB_DIR')) die();
|
||
|
|
|
||
|
|
// Simple guide to configuring db2: so-so http://www.devx.com/gethelpon/10MinuteSolution/16575
|
||
|
|
|
||
|
|
// SELECT * FROM TABLE(SNAPSHOT_APPL('SAMPLE', -1)) as t
|
||
|
|
class perf_db2 extends adodb_perf{
|
||
|
|
var $createTableSQL = "CREATE TABLE adodb_logsql (
|
||
|
|
created TIMESTAMP NOT NULL,
|
||
|
|
sql0 varchar(250) NOT NULL,
|
||
|
|
sql1 varchar(4000) NOT NULL,
|
||
|
|
params varchar(3000) NOT NULL,
|
||
|
|
tracer varchar(500) NOT NULL,
|
||
|
|
timer decimal(16,6) NOT NULL
|
||
|
|
)";
|
||
|
|
|
||
|
|
var $settings = array(
|
||
|
|
'Ratios',
|
||
|
|
'data cache hit ratio' => array('RATIO',
|
||
|
|
"SELECT
|
||
|
|
case when sum(POOL_DATA_L_READS+POOL_INDEX_L_READS)=0 then 0
|
||
|
|
else 100*(1-sum(POOL_DATA_P_READS+POOL_INDEX_P_READS)/sum(POOL_DATA_L_READS+POOL_INDEX_L_READS)) end
|
||
|
|
FROM TABLE(SNAPSHOT_APPL('',-2)) as t",
|
||
|
|
'=WarnCacheRatio'),
|
||
|
|
|
||
|
|
'Data Cache',
|
||
|
|
'data cache buffers' => array('DATAC',
|
||
|
|
'select sum(npages) from SYSCAT.BUFFERPOOLS',
|
||
|
|
'See <a href=http://www7b.boulder.ibm.com/dmdd/library/techarticle/anshum/0107anshum.html#bufferpoolsize>tuning reference</a>.' ),
|
||
|
|
'cache blocksize' => array('DATAC',
|
||
|
|
'select avg(pagesize) from SYSCAT.BUFFERPOOLS',
|
||
|
|
'' ),
|
||
|
|
'data cache size' => array('DATAC',
|
||
|
|
'select sum(npages*pagesize) from SYSCAT.BUFFERPOOLS',
|
||
|
|
'' ),
|
||
|
|
'Connections',
|
||
|
|
'current connections' => array('SESS',
|
||
|
|
"SELECT count(*) FROM TABLE(SNAPSHOT_APPL_INFO('',-2)) as t",
|
||
|
|
''),
|
||
|
|
|
||
|
|
false
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
function __construct(&$conn)
|
||
|
|
{
|
||
|
|
$this->conn = $conn;
|
||
|
|
}
|
||
|
|
|
||
|
|
function Explain($sql,$partial=false)
|
||
|
|
{
|
||
|
|
$save = $this->conn->LogSQL(false);
|
||
|
|
if ($partial) {
|
||
|
|
$sqlq = $this->conn->qstr($sql.'%');
|
||
|
|
$arr = $this->conn->GetArray("select distinct sql1 from adodb_logsql where sql1 like $sqlq");
|
||
|
|
if ($arr) {
|
||
|
|
foreach($arr as $row) {
|
||
|
|
$sql = reset($row);
|
||
|
|
if (crc32($sql) == $partial) break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$qno = rand();
|
||
|
|
$ok = $this->conn->Execute("EXPLAIN PLAN SET QUERYNO=$qno FOR $sql");
|
||
|
|
ob_start();
|
||
|
|
if (!$ok) echo "<p>Have EXPLAIN tables been created?</p>";
|
||
|
|
else {
|
||
|
|
$rs = $this->conn->Execute("select * from explain_statement where queryno=$qno");
|
||
|
|
if ($rs) rs2html($rs);
|
||
|
|
}
|
||
|
|
$s = ob_get_contents();
|
||
|
|
ob_end_clean();
|
||
|
|
$this->conn->LogSQL($save);
|
||
|
|
|
||
|
|
$s .= $this->Tracer($sql);
|
||
|
|
return $s;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets a list of tables
|
||
|
|
*
|
||
|
|
* @param int $throwaway discarded variable to match the parent method
|
||
|
|
* @return string The formatted table list
|
||
|
|
*/
|
||
|
|
function Tables($throwaway=0)
|
||
|
|
{
|
||
|
|
$rs = $this->conn->Execute("select tabschema,tabname,card as rows,
|
||
|
|
npages pages_used,fpages pages_allocated, tbspace tablespace
|
||
|
|
from syscat.tables where tabschema not in ('SYSCAT','SYSIBM','SYSSTAT') order by 1,2");
|
||
|
|
return rs2html($rs,false,false,false,false);
|
||
|
|
}
|
||
|
|
}
|