Computes percentile using The Nearest Rank method.

Parameters

\Drupal\webprofiler\Command\BenchmarkData[] $datas:

$percentile:

Return value

\Drupal\webprofiler\Command\BenchmarkData

Throws

\Exception

1 call to BenchmarkCommand::computePercentile()

BenchmarkCommand::execute in webprofiler/src/Command/BenchmarkCommand.php

File

webprofiler/src/Command/BenchmarkCommand.php, line 206

Class

BenchmarkCommand

Class BenchmarkCommand

Namespace

Drupal\webprofiler\Command

Code

private function computePercentile($datas, $percentile) {
    if ($percentile < 0 || $percentile > 100) {
        throw new \Exception('Percentile has to be between 0 and 100');
    }
    $profiles = count($datas);
    $n = ceil($percentile / 100 * $profiles);
    $index = (int) $n - 1;
    $orderedTime = $datas;
    $this->getOrderedDatas($orderedTime, 'Time');
    $orderedMemory = $datas;
    $this->getOrderedDatas($orderedMemory, 'Memory');
    return new BenchmarkData(NULL, $orderedMemory[$index]->getMemory(), $orderedTime[$index]->getTime());
}