3bcc039e7a
Currently, HashBagOStuff leads in most benchmarks, except for the --fill benchmark, where MapCacheLRU is faster on HHVM. (by invoking with `PHP=hhvm mwscript maintenance/bench...`) Run in MediaWiki-Vagrant (Debian Jessie) on MacBook Pro host. $ benchmarkLruHash.php --count 50000 --construct Running PHP 5.6.30-0+deb8u1: - HashBagOStuff-construct (22% faster) total: 446.20ms (min: 0.01ms, median: 0.01ms, max: 2.09ms) - MapCacheLRU-construct total: 575.31ms (min: 0.01ms, median: 0.01ms, max: 3.51ms) Running PHP version 5.6.99-hhvm: - HashBagOStuff-construct (13% faster) total: 124.70ms (min: 0.00ms, median: 0.00ms, max: 1.27ms) - MapCacheLRU-construct total: 143.76ms (min: 0.00ms, median: 0.00ms, max: 2.01ms) For MapCacheLRU, the main slowdown is its use of Wikimedia\Assert. Removing that would make it faster than HashBagOStuff. $ benchmarkLruHash.php --count 3000 --fill Running PHP 5.6.30-0+deb8u1: - HashBagOStuff-fill (22% faster) total: 10196.82ms (min: 2.91ms, median: 3.24ms, max: 9.51ms) - MapCacheLRU-fill total: 13197.13ms (min: 3.92ms, median: 4.31ms, max: 9.90ms) Running PHP version 5.6.99-hhvm: - HashBagOStuff-fill total: 5700.37ms (min: 1.71ms, median: 1.85ms, max: 8.24ms) - MapCacheLRU-fill (11% faster) total: 4986.90ms (min: 1.48ms, median: 1.62ms, max: 6.93ms) Change-Id: Icd03f872dddb308f162c72674c8d2aa6092395e5
97 lines
2.8 KiB
PHP
97 lines
2.8 KiB
PHP
<?php
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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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/**
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* Maintenance script that benchmarks HashBagOStuff and MapCacheLRU.
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*
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* @ingroup Benchmark
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*/
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class BenchmarkLruHash extends Benchmarker {
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protected $defaultCount = 1000;
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Benchmarks HashBagOStuff and MapCacheLRU.' );
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$this->addOption( 'construct', 'Run construct only', false, false );
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$this->addOption( 'fill', 'Run fill only', false, false );
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}
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public function execute() {
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$exampleKeys = [];
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$max = 100;
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$count = 500;
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while ( $count-- ) {
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$exampleKeys[] = wfRandomString();
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}
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// 1000 keys (1...500, 500...1)
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$keys = array_merge( $exampleKeys, array_reverse( $exampleKeys ) );
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$fill = $this->hasOption( 'fill' ) || !$this->hasOption( 'construct' );
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$construct = $this->hasOption( 'construct' ) || !$this->hasOption( 'fill' );
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$benches = [];
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if ( $construct ) {
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$benches['HashBagOStuff-construct'] = [
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'function' => function () use ( $max ) {
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$obj = new HashBagOStuff( [ 'maxKeys' => $max ] );
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},
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];
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$benches['MapCacheLRU-construct'] = [
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'function' => function () use ( $max ) {
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$obj = new MapCacheLRU( $max );
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},
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];
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}
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if ( $fill ) {
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// For the fill bechmark, ensure object creation is not measured.
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$hObj = null;
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$benches['HashBagOStuff-fill'] = [
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'setup' => function () use ( &$hObj, $max ) {
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$hObj = new HashBagOStuff( [ 'maxKeys' => $max ] );
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},
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'function' => function () use ( &$hObj, &$keys ) {
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foreach ( $keys as $i => $key ) {
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$hObj->set( $key, $i );
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}
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}
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];
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$mObj = null;
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$benches['MapCacheLRU-fill'] = [
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'setup' => function () use ( &$mObj, $max ) {
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$mObj = new MapCacheLRU( $max );
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},
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'function' => function () use ( &$mObj, &$keys ) {
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foreach ( $keys as $i => $key ) {
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$mObj->set( $key, $i );
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}
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}
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];
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}
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$this->bench( $benches );
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}
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}
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$maintClass = BenchmarkLruHash::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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