Documentation TYPO3 par Ameos |
00001 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> 00002 00003 <html> 00004 <head> 00005 <title>ADODB Benchmarks</title> 00006 </head> 00007 00008 <body> 00009 <?php 00010 /* 00011 V4.81 3 May 2006 (c) 2000-2006 John Lim (jlim#natsoft.com.my). All rights reserved. 00012 Released under both BSD license and Lesser GPL library license. 00013 Whenever there is any discrepancy between the two licenses, 00014 the BSD license will take precedence. 00015 00016 Benchmark code to test the speed to the ADODB library with different databases. 00017 This is a simplistic benchmark to be used as the basis for further testing. 00018 It should not be used as proof of the superiority of one database over the other. 00019 */ 00020 00021 $testmssql = true; 00022 //$testvfp = true; 00023 $testoracle = true; 00024 $testado = true; 00025 $testibase = true; 00026 $testaccess = true; 00027 $testmysql = true; 00028 $testsqlite = true;; 00029 00030 set_time_limit(240); // increase timeout 00031 00032 include("../tohtml.inc.php"); 00033 include("../adodb.inc.php"); 00034 00035 function testdb(&$db,$createtab="create table ADOXYZ (id int, firstname char(24), lastname char(24), created date)") 00036 { 00037 GLOBAL $ADODB_version,$ADODB_FETCH_MODE; 00038 00039 adodb_backtrace(); 00040 00041 $max = 100; 00042 $sql = 'select * from ADOXYZ'; 00043 $ADODB_FETCH_MODE = ADODB_FETCH_NUM; 00044 00045 //print "<h3>ADODB Version: $ADODB_version Host: <i>$db->host</i> Database: <i>$db->database</i></h3>"; 00046 00047 // perform query once to cache results so we are only testing throughput 00048 $rs = $db->Execute($sql); 00049 if (!$rs){ 00050 print "Error in recordset<p>"; 00051 return; 00052 } 00053 $arr = $rs->GetArray(); 00054 //$db->debug = true; 00055 global $ADODB_COUNTRECS; 00056 $ADODB_COUNTRECS = false; 00057 $start = microtime(); 00058 for ($i=0; $i < $max; $i++) { 00059 $rs =& $db->Execute($sql); 00060 $arr =& $rs->GetArray(); 00061 // print $arr[0][1]; 00062 } 00063 $end = microtime(); 00064 $start = explode(' ',$start); 00065 $end = explode(' ',$end); 00066 00067 //print_r($start); 00068 //print_r($end); 00069 00070 // print_r($arr); 00071 $total = $end[0]+trim($end[1]) - $start[0]-trim($start[1]); 00072 printf ("<p>seconds = %8.2f for %d iterations each with %d records</p>",$total,$max, sizeof($arr)); 00073 flush(); 00074 00075 00076 //$db->Close(); 00077 } 00078 include("testdatabases.inc.php"); 00079 00080 ?> 00081 00082 00083 </body> 00084 </html>