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<?php declare(strict_types=1); |
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namespace AlecRabbit\Tools\Reports; |
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use AlecRabbit\Accessories\MemoryUsage; |
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use AlecRabbit\Accessories\Pretty; |
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use AlecRabbit\Tools\Internal\BenchmarkFunction; |
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use AlecRabbit\Tools\Internal\BenchmarkRelative; |
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use AlecRabbit\Tools\Internal\BenchmarkResult; |
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class BenchmarkReport |
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{ |
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/** @var bool */ |
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protected $showReturns = false; |
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/** @var BenchmarkFunction[] */ |
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protected $functions = []; |
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public function withReturns(): self |
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{ |
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$this->showReturns = true; |
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return $this; |
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} |
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public function __toString(): string |
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{ |
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$functions = $this->updateFunctions($this->functions); |
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$str = ''; |
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/** |
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* @var BenchmarkFunction $f |
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*/ |
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foreach ($functions as $name => $f) { |
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$benchmarkRelative = $f->getRelative(); |
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if ($benchmarkRelative instanceof BenchmarkRelative) { |
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$str .= |
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sprintf( |
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'%s. %s %s %s %s', |
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$benchmarkRelative->getRank(), |
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mb_str_pad($f->getAssignedName(), 30), |
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mb_str_pad('+' . Pretty::percent($benchmarkRelative->getRelative()), 8, ' ', STR_PAD_LEFT), |
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mb_str_pad( |
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(string)$benchmarkRelative->getBenchmarkResult(), |
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18, |
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' ', |
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STR_PAD_LEFT |
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), |
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(string)$f->getComment() |
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) . PHP_EOL; |
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} |
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} |
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$str .= PHP_EOL . MemoryUsage::getReport(); |
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return $str; |
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} |
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/** |
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* @param BenchmarkFunction[] $functions |
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* @return array |
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*/ |
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private function updateFunctions(array $functions): array |
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{ |
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$averages = $this->computeAverages(); |
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$relatives = $this->computeRelatives($averages); |
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$updatedFunctions = []; |
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if (!empty($relatives)) { |
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$rank = 0; |
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foreach ($relatives as $name => $relative) { |
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/** @var null|BenchmarkFunction $function */ |
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$function = $functions[$name] ?? null; |
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$average = $averages[$name] ?? null; |
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if (null !== $function && null !== $average) { |
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$function->setBenchmarkRelative( |
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new BenchmarkRelative(++$rank, (float)$relative - 1, $function->getResult()) |
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); |
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} |
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unset($functions[$name]); |
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$updatedFunctions[$name] = $function; |
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} |
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} |
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foreach ($functions as $name => $function) { |
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$updatedFunctions[$name] = $function; |
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} |
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return $updatedFunctions; |
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} |
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/** |
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* @return array |
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*/ |
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protected function computeAverages(): array |
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{ |
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$averages = []; |
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/** @var BenchmarkFunction $f */ |
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foreach ($this->functions as $f) { |
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$benchmarkResult = $f->getResult(); |
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if ($benchmarkResult instanceof BenchmarkResult) { |
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$averages[$f->getIndexedName()] = $benchmarkResult->getMean(); |
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} |
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} |
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return $averages; |
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} |
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private function computeRelatives(array $averages): array |
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{ |
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$rel = []; |
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if (!empty($averages)) { |
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$min = min($averages); |
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foreach ($averages as $name => $average) { |
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$rel[$name] = $average / $min; |
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} |
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asort($rel); |
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} |
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return $rel; |
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} |
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public function setFunctions(array $functions): self |
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{ |
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$this->functions = []; |
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/** @var BenchmarkFunction $f */ |
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foreach ($functions as $f) { |
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$this->functions[$f->getIndexedName()] = $f; |
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} |
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return $this; |
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} |
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} |
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alecrabbit /
php-simple-profiler
