fa3f8e1fd5
Add minimum, maximum, median to the report in addition to the mean (average) which was already there. Based on benchmarkTidy.php from I254793fc5. Example output: > Delete > times: 10 > total: 7.47ms > min: 0.53ms > median: 0.74ms > mean: 0.75ms > max: 1.21ms > > Truncate > times: 10 > total: 72.38ms > min: 1.37ms > median: 8.32ms > mean: 7.24ms > max: 15.73ms Change-Id: Ifd3064a3621e07f55505490403189cb47022c6c7
105 lines
2.6 KiB
PHP
105 lines
2.6 KiB
PHP
<?php
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/**
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* Benchmark SQL DELETE vs SQL TRUNCATE.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Benchmark
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*/
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require_once __DIR__ . '/Benchmarker.php';
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use Wikimedia\Rdbms\IDatabase;
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use Wikimedia\Rdbms\IMaintainableDatabase;
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/**
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* Maintenance script that benchmarks SQL DELETE vs SQL TRUNCATE.
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*
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* @ingroup Benchmark
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*/
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class BenchmarkDeleteTruncate extends Benchmarker {
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protected $defaultCount = 10;
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Benchmarks SQL DELETE vs SQL TRUNCATE.' );
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}
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public function execute() {
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$dbw = $this->getDB( DB_MASTER );
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$test = $dbw->tableName( 'test' );
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$dbw->query( "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->bench( [
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'Delete' => [
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'setup' => function () use ( $dbw ) {
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$this->insertData( $dbw );
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},
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'function' => function () use ( $dbw ) {
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$this->delete( $dbw );
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}
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],
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'Truncate' => [
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'setup' => function () use ( $dbw ) {
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$this->insertData( $dbw );
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},
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'function' => function () use ( $dbw ) {
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$this->truncate( $dbw );
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}
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]
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] );
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$dbw->dropTable( 'test' );
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}
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/**
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* @param IDatabase $dbw
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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 = [];
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foreach ( $range as $r ) {
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$data[] = [ '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 IDatabase $dbw
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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 IMaintainableDatabase $dbw
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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->query( "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;
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