MediaWiki  1.23.14
benchmarkPurge.php
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1 <?php
24 require_once __DIR__ . '/Benchmarker.php';
25 
31 class BenchmarkPurge extends Benchmarker {
32 
33  public function __construct() {
34  parent::__construct();
35  $this->mDescription = "Benchmark the Squid purge functions.";
36  }
37 
38  public function execute() {
39  global $wgUseSquid, $wgSquidServers;
40  if ( !$wgUseSquid ) {
41  $this->error( "Squid purge benchmark doesn't do much without squid support on.", true );
42  } else {
43  $this->output( "There are " . count( $wgSquidServers ) . " defined squid servers:\n" );
44  if ( $this->hasOption( 'count' ) ) {
45  $lengths = array( intval( $this->getOption( 'count' ) ) );
46  } else {
47  $lengths = array( 1, 10, 100 );
48  }
49  foreach ( $lengths as $length ) {
50  $urls = $this->randomUrlList( $length );
51  $trial = $this->benchSquid( $urls );
52  $this->output( $trial . "\n" );
53  }
54  }
55  }
56 
64  private function benchSquid( $urls, $trials = 1 ) {
65  $start = microtime( true );
66  for ( $i = 0; $i < $trials; $i++ ) {
67  SquidUpdate::purge( $urls );
68  }
69  $delta = microtime( true ) - $start;
70  $pertrial = $delta / $trials;
71  $pertitle = $pertrial / count( $urls );
72  return sprintf( "%4d titles in %6.2fms (%6.2fms each)",
73  count( $urls ), $pertrial * 1000.0, $pertitle * 1000.0 );
74  }
75 
81  private function randomUrlList( $length ) {
82  $list = array();
83  for ( $i = 0; $i < $length; $i++ ) {
84  $list[] = $this->randomUrl();
85  }
86  return $list;
87  }
88 
94  private function randomUrl() {
95  global $wgServer, $wgArticlePath;
96  return $wgServer . str_replace( '$1', $this->randomTitle(), $wgArticlePath );
97  }
98 
104  private function randomTitle() {
105  $str = '';
106  $length = mt_rand( 1, 20 );
107  for ( $i = 0; $i < $length; $i++ ) {
108  $str .= chr( mt_rand( ord( 'a' ), ord( 'z' ) ) );
109  }
110  return ucfirst( $str );
111  }
112 }
113 
114 $maintClass = "BenchmarkPurge";
115 require_once RUN_MAINTENANCE_IF_MAIN;
php
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Definition: skin.txt:62
BenchmarkPurge\__construct
__construct()
Default constructor.
Definition: benchmarkPurge.php:33
RUN_MAINTENANCE_IF_MAIN
require_once RUN_MAINTENANCE_IF_MAIN
Definition: maintenance.txt:50
BenchmarkPurge\randomUrl
randomUrl()
Return a random URL of the wiki.
Definition: benchmarkPurge.php:94
BenchmarkPurge\execute
execute()
Do the actual work.
Definition: benchmarkPurge.php:38
SquidUpdate\purge
static purge( $urlArr)
Purges a list of Squids defined in $wgSquidServers.
Definition: SquidUpdate.php:134
BenchmarkPurge
Maintenance script that benchmarks Squid purge.
Definition: benchmarkPurge.php:31
array
the array() calling protocol came about after MediaWiki 1.4rc1.
List of Api Query prop modules.
global
when a variable name is used in a it is silently declared as a new masking the global
Definition: design.txt:93
Benchmarker
Base class for benchmark scripts.
Definition: Benchmarker.php:37
$wgArticlePath
$wgArticlePath
Definition: img_auth.php:48
Maintenance\getOption
getOption( $name, $default=null)
Get an option, or return the default.
Definition: Maintenance.php:191
as
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
Maintenance\error
error( $err, $die=0)
Throw an error to the user.
Definition: Maintenance.php:333
Maintenance\output
output( $out, $channel=null)
Throw some output to the user.
Definition: Maintenance.php:314
BenchmarkPurge\benchSquid
benchSquid( $urls, $trials=1)
Run a bunch of URLs through SquidUpdate::purge() to benchmark Squid response times.
Definition: benchmarkPurge.php:64
Maintenance\hasOption
hasOption( $name)
Checks to see if a particular param exists.
Definition: Maintenance.php:181
BenchmarkPurge\randomTitle
randomTitle()
Create a random title string (not necessarily a Title object).
Definition: benchmarkPurge.php:104
$maintClass
$maintClass
Definition: benchmarkPurge.php:114
BenchmarkPurge\randomUrlList
randomUrlList( $length)
Get an array of randomUrl()'s.
Definition: benchmarkPurge.php:81