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<?php |
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declare(strict_types=1); |
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/** |
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* This file is part of Esi\ConsistentHash. |
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* |
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* (c) Eric Sizemore <[email protected]> |
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* (c) Paul Annesley <[email protected]> |
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* |
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* This source file is subject to the MIT license. For the full copyright and |
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* license information, please view the LICENSE file that was distributed with |
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* this source code. |
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*/ |
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namespace Esi\ConsistentHash\Tests\Bench; |
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use Esi\ConsistentHash\ConsistentHash; |
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use Esi\ConsistentHash\Hasher\Md5Hasher; |
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use Generator; |
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use PhpBench\Attributes\ParamProviders; |
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use function bin2hex; |
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use function random_bytes; |
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use function range; |
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final class LookupBench |
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{ |
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private ConsistentHash $hasher; |
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/** @var list<string> */ |
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private array $randomKeys = []; |
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public function __construct() |
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{ |
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$this->hasher = new ConsistentHash(new Md5Hasher(), 64); |
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foreach (range(1, 10) as $i) { |
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$this->hasher->addTarget('target_' . $i, 1); |
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} |
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// Generate random lookup keys outside the measurement function. |
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foreach (range(1, 100_000) as $ignored) { |
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$this->randomKeys[] = bin2hex(random_bytes(12)); |
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} |
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} |
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/** |
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* @param array{count: int} $params |
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*/ |
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#[ParamProviders(['provideLookupCount'])] |
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public function benchLookup(array $params): void |
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{ |
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foreach (range(0, $params['count'] - 1) as $i) { |
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$this->hasher->lookup($this->randomKeys[$i]); |
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} |
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} |
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public function provideLookupCount(): Generator |
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{ |
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yield '10_000 lookups' => ['count' => 10_000]; |
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yield '20_000 lookups' => ['count' => 20_000]; |
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yield '40_000 lookups' => ['count' => 40_000]; |
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yield '80_000 lookups' => ['count' => 80_000]; |
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yield '100_000 lookups' => ['count' => 100_000]; |
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} |
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} |
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ericsizemore /
consistent-hash
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