* @copyright 2024 smiley
* @license MIT
*/
declare(strict_types=1);
namespace chillerlan\QRCodeBenchmark;
use function array_column;
use function array_key_first;
use function array_keys;
use function array_map;
use function array_sum;
use function explode;
use function implode;
use function intdiv;
use function rsort;
use function sprintf;
use function str_repeat;
use const SORT_NUMERIC;
const BUILDDIR = __DIR__.'/../.build/phpbench';
const FILE = BUILDDIR.'/benchmark'; // without extension
function parseVariants(array $variants):string{
$data = [];
foreach($variants as $variant){
[$version, $ecc, $mode] = explode(',', $variant['name']);
$data[(int)$version][$mode][$ecc] = parseVariantResults($variant['results']);
}
$v = $data[array_key_first($data)];
$modeKeys = array_keys($v);
$eccKeys = array_keys($v[$modeKeys[0]]);
$modeHeaders = array_map(fn($mode) => sprintf('| %s | ', $mode), $modeKeys);
$eccHeaders = array_map(fn($ecc) => sprintf('%s | ', $ecc), $eccKeys);
$table = [''];
$table[] = sprintf(' | %s
|---|
', implode('', $modeHeaders));
$table[] = sprintf('| Version | %s
|---|
', str_repeat(implode('', $eccHeaders), count($modeKeys)));
$table[] = '';
foreach($data as $version => $modes){
$results = [];
foreach($modes as $eccLevels){
foreach($eccLevels as [$time_avg, $mem_peak]){
$results[] = sprintf('%01.3f | ', $time_avg);
}
}
$table[] = sprintf('| %s | %s
', $version, implode('', $results));
}
$table[] = '
';
return implode("\n", $table);
}
function parseVariantResults(array $results):array{
$iterations = count($results);
$mem_peak = array_column($results, 'mem_peak');
rsort($mem_peak, SORT_NUMERIC);
return [
(array_sum(array_column($results, 'time_avg')) / $iterations / 1000),
intdiv($mem_peak[0], 1024),
];
}