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<?php
namespace SMW\Tests\Benchmark;
use RuntimeException;
use SMW\DIProperty;
use SMW\Query\PrintRequest as PrintRequest;
use SMW\Store;
use SMWPropertyValue as PropertyValue;
use SMWQuery as Query;
use SMWQueryParser as QueryParser;
use Title;
/**
* @group semantic-mediawiki-benchmark
*
* @license GNU GPL v2+
* @since 2.5
*
* @author mwjames
*/
class QueryBenchmarkRunner implements BenchmarkReporter {
/**
* @var Store
*/
private $store;
/**
* @var QueryParser
*/
private $queryParser;
/**
* @var Benchmarker
*/
private $benchmarker;
/**
* @var array
*/
private $benchmarkReport = [];
/**
* @since 2.5
*
* @param Store $store
* @param QueryParser $queryParser
* @param Benchmarker $benchmarker
*/
public function __construct( Store $store, QueryParser $queryParser, Benchmarker $benchmarker ) {
$this->store = $store;
$this->queryParser = $queryParser;
$this->benchmarker = $benchmarker;
}
/**
* @since 2.5
*
* @param array
*/
public function getBenchmarkReport() {
return $this->benchmarkReport;
}
/**
* @since 2.5
*
* @param array $case
*/
public function run( array $case ) {
$this->benchmarkReport = [];
$this->benchmarker->clear();
if ( !isset( $case['query'] ) && !is_array( $case['query'] ) ) {
throw new RuntimeException( 'Query specification is not available.' );
}
if ( !isset( $case['repetitionCount'] ) ) {
throw new RuntimeException( 'repetitionCount is not available.' );
}
$start = microtime( true );
$queryReports = [];
$queryReports['count'] = $this->doQuery(
$case, $this->createQuery( $case, Query::MODE_COUNT )
);
$queryReports['instance'] = $this->doQuery(
$case, $this->createQuery( $case, Query::MODE_INSTANCES )
);
$this->benchmarkReport = [
'type' => $case['type'],
'note' => $case['query']['condition'] . ( isset( $case['note'] ) ? ' (' . $case['note'] . ')' : '' ),
'query' => $queryReports,
'time' => microtime( true ) - $start
];
}
private function doQuery( array $case, $query ) {
$this->benchmarker->clear();
$memoryBefore = memory_get_peak_usage( false );
for ( $i = 0; $i < $case['repetitionCount']; $i++ ) {
$start = microtime( true );
$queryResult = $this->store->getQueryResult( $query );
$this->benchmarker->addBenchmarkPoint( microtime( true ) - $start );
}
$count = $query->querymode === Query::MODE_COUNT ? $queryResult->getCountValue() : $queryResult->getCount();
$columnCount = $queryResult->getColumnCount();
return [
'rowCount' => $count,
'columnCount' => $columnCount,
'repetitionCount' => $case['repetitionCount'],
"memory" => memory_get_peak_usage( false ) - $memoryBefore,
"time" => [
'sum' => $this->benchmarker->getSum(),
'mean' => $this->benchmarker->getMean(),
'sd' => $this->benchmarker->getStandardDeviation(),
'norm' => $this->benchmarker->getNormalizedValueBy( $case['repetitionCount'] )
]
];
}
private function createQuery( array $case, $mode, array $printouts = [] ) {
$description = $this->queryParser->getQueryDescription(
$case['query']['condition']
);
foreach ( $case['query']['printouts'] as $printout ) {
$property = DIProperty::newFromUserLabel( $printout );
$propertyValue = new PropertyValue( '__pro' );
$propertyValue->setDataItem( $property );
$description->addPrintRequest(
new PrintRequest( PrintRequest::PRINT_PROP, null, $propertyValue )
);
}
$query = new Query(
$description
);
$query->setUnboundlimit(
isset( $case['query']['parameters']['limit'] ) ? $case['query']['parameters']['limit'] : 500
);
$query->setOffset(
isset( $case['query']['parameters']['offset'] ) ? $case['query']['parameters']['offset'] : 0
);
$query->setQueryMode( $mode );
return $query;
}
}
|
