관리-도구

편집 파일: perf-db2.inc.php

<?php
/* 
V5.09 25 June 2009   (c) 2000-2009 John Lim (jlim#natsoft.com). All rights reserved.
  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
	);