78 lines
No EOL
1.5 KiB
PHP
78 lines
No EOL
1.5 KiB
PHP
<?php
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require_once( dirname( __FILE__ ) . '/Benchmarker.php' );
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class BenchmarkDeleteTruncate extends Benchmarker {
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public function __construct() {
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parent::__construct();
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$this->mDescription = "Benchmarks SQL DELETE vs SQL TRUNCATE.";
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}
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public function execute() {
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$dbw = wfGetDB( DB_MASTER );
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$test = $dbw->tableName( 'test' );
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$dbw->doQuery( "CREATE TABLE IF NOT EXISTS /*_*/$test (
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test_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
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text varbinary(255) NOT NULL
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);" );
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$this->insertData( $dbw );
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$start = wfTime();
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$this->delete( $dbw );
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$end = wfTime();
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echo "Delete: " . $end - $start;
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echo "\r\n";
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$this->insertData( $dbw );
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$start = wfTime();
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$this->truncate( $dbw );
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$end = wfTime();
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echo "Truncate: " . $end - $start;
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echo "\r\n";
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$dbw->dropTable( 'test' );
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}
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/**
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* @param $dbw DatabaseBase
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* @return void
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*/
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private function insertData( $dbw ) {
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$range = range( 0, 1024 );
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$data = array();
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foreach( $range as $r ) {
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$data[] = array( 'text' => $r );
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}
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$dbw->insert( 'test', $data, __METHOD__ );
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}
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/**
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* @param $dbw DatabaseBase
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* @return void
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*/
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private function delete( $dbw ) {
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$dbw->delete( 'text', '*', __METHOD__ );
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}
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/**
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* @param $dbw DatabaseBase
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* @return void
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*/
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private function truncate( $dbw ) {
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$test = $dbw->tableName( 'test' );
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$dbw->doQuery( "TRUNCATE TABLE $test" );
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}
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}
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$maintClass = "BenchmarkDeleteTruncate";
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require_once( RUN_MAINTENANCE_IF_MAIN ); |