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<?php
/**
* Approximate benchmark for some basic operations.
* Runs large chunks of text through cleanup with a lowish memory limit,
* to test regression on mem usage (bug 28146)
*
* Copyright © 2004-2011 Brion Vibber <brion@wikimedia.org>
* http://www.mediawiki.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup UtfNormal
*/
if( isset( $_SERVER['argv'] ) && in_array( '--icu', $_SERVER['argv'] ) ) {
dl( 'php_utfnormal.so' );
}
require_once 'UtfNormalDefines.php';
require_once 'UtfNormalUtil.php';
require_once 'UtfNormal.php';
define( 'BENCH_CYCLES', 1 );
define( 'BIGSIZE', 1024 * 1024 * 10); // 10m
ini_set('memory_limit', BIGSIZE + 120 * 1024 * 1024);
if( php_sapi_name() != 'cli' ) {
die( "Run me from the command line please.\n" );
}
$testfiles = array(
'testdata/washington.txt' => 'English text',
'testdata/berlin.txt' => 'German text',
'testdata/bulgakov.txt' => 'Russian text',
'testdata/tokyo.txt' => 'Japanese text',
'testdata/young.txt' => 'Korean text'
);
$normalizer = new UtfNormal;
UtfNormal::loadData();
foreach( $testfiles as $file => $desc ) {
benchmarkTest( $normalizer, $file, $desc );
}
# -------
function benchmarkTest( &$u, $filename, $desc ) {
print "Testing $filename ($desc)...\n";
$data = file_get_contents( $filename );
$all = $data;
while (strlen($all) < BIGSIZE) {
$all .= $all;
}
$data = $all;
echo "Data is " . strlen($data) . " bytes.\n";
$forms = array(
'quickIsNFCVerify',
'cleanUp',
);
foreach( $forms as $form ) {
if( is_array( $form ) ) {
$str = $data;
foreach( $form as $step ) {
$str = benchmarkForm( $u, $str, $step );
}
} else {
benchmarkForm( $u, $data, $form );
}
}
}
function benchTime(){
$st = explode( ' ', microtime() );
return (float)$st[0] + (float)$st[1];
}
function benchmarkForm( &$u, &$data, $form ) {
#$start = benchTime();
for( $i = 0; $i < BENCH_CYCLES; $i++ ) {
$start = benchTime();
$out = $u->$form( $data, UtfNormal::$utfCanonicalDecomp );
$deltas[] = (benchTime() - $start);
}
#$delta = (benchTime() - $start) / BENCH_CYCLES;
sort( $deltas );
$delta = $deltas[0]; # Take shortest time
$rate = intval( strlen( $data ) / $delta );
$same = (0 == strcmp( $data, $out ) );
printf( " %20s %6.1fms %12s bytes/s (%s)\n",
$form,
$delta*1000.0,
number_format( $rate ),
($same ? 'no change' : 'changed' ) );
return $out;
}
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