[Summary view] [Print] [Text view]

   1  <?php
   2  /**
   3   * Approximate benchmark for some basic operations.
   4   * Runs large chunks of text through cleanup with a lowish memory limit,
   5   * to test regression on mem usage (bug 28146)
   6   *
   7   * Copyright © 2004-2011 Brion Vibber <[email protected]>
   8   * https://www.mediawiki.org/
   9   *
  10   * This program is free software; you can redistribute it and/or modify
  11   * it under the terms of the GNU General Public License as published by
  12   * the Free Software Foundation; either version 2 of the License, or
  13   * (at your option) any later version.
  14   *
  15   * This program is distributed in the hope that it will be useful,
  16   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18   * GNU General Public License for more details.
  19   *
  20   * You should have received a copy of the GNU General Public License along
  21   * with this program; if not, write to the Free Software Foundation, Inc.,
  22   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23   * http://www.gnu.org/copyleft/gpl.html
  24   *
  25   * @file
  26   * @ingroup UtfNormal
  27   */
  28  
  29  if ( PHP_SAPI != 'cli' ) {
  30      die( "Run me from the command line please.\n" );
  31  }
  32  
  33  if ( isset( $_SERVER['argv'] ) && in_array( '--icu', $_SERVER['argv'] ) ) {
  34      dl( 'php_utfnormal.so' );
  35  }
  36  
  37  require_once  'UtfNormalDefines.php';
  38  require_once  'UtfNormalUtil.php';
  39  require_once  'UtfNormal.php';
  40  
  41  define( 'BENCH_CYCLES', 1 );
  42  define( 'BIGSIZE', 1024 * 1024 * 10 ); // 10m
  43  ini_set( 'memory_limit', BIGSIZE + 120 * 1024 * 1024 );
  44  
  45  $testfiles = array(
  46      'testdata/washington.txt' => 'English text',
  47      'testdata/berlin.txt' => 'German text',
  48      'testdata/bulgakov.txt' => 'Russian text',
  49      'testdata/tokyo.txt' => 'Japanese text',
  50      'testdata/young.txt' => 'Korean text'
  51  );
  52  $normalizer = new UtfNormal;
  53  UtfNormal::loadData();
  54  foreach ( $testfiles as $file => $desc ) {
  55      benchmarkTest( $normalizer, $file, $desc );
  56  }
  57  
  58  # -------
  59  
  60  function benchmarkTest( &$u, $filename, $desc ) {
  61      print "Testing $filename ($desc)...\n";
  62      $data = file_get_contents( $filename );
  63      $all = $data;
  64      while ( strlen( $all ) < BIGSIZE ) {
  65          $all .= $all;
  66      }
  67      $data = $all;
  68      echo "Data is " . strlen( $data ) . " bytes.\n";
  69      $forms = array(
  70          'quickIsNFCVerify',
  71          'cleanUp',
  72      );
  73  
  74      foreach ( $forms as $form ) {
  75          if ( is_array( $form ) ) {
  76              $str = $data;
  77              foreach ( $form as $step ) {
  78                  $str = benchmarkForm( $u, $str, $step );
  79              }
  80          } else {
  81              benchmarkForm( $u, $data, $form );
  82          }
  83      }
  84  }
  85  
  86  function benchmarkForm( &$u, &$data, $form ) {
  87      #$start = microtime( true );
  88      for ( $i = 0; $i < BENCH_CYCLES; $i++ ) {
  89          $start = microtime( true );
  90          $out = $u->$form( $data, UtfNormal::$utfCanonicalDecomp );
  91          $deltas[] = ( microtime( true ) - $start );
  92      }
  93      #$delta = (microtime( true ) - $start) / BENCH_CYCLES;
  94      sort( $deltas );
  95      $delta = $deltas[0]; # Take shortest time
  96  
  97      $rate = intval( strlen( $data ) / $delta );
  98      $same = ( 0 == strcmp( $data, $out ) );
  99  
 100      printf( " %20s %6.1fms %12s bytes/s (%s)\n",
 101          $form,
 102          $delta * 1000.0,
 103          number_format( $rate ),
 104          ( $same ? 'no change' : 'changed' ) );
 105  
 106      return $out;
 107  }