ParagonIE_Sodium_Compat::runtime_speed_test( int $iterations, int $maxTimeout ): bool

4403    public static function runtime_speed_test($iterations, $maxTimeout)4404    {4405        if (self::polyfill_is_fast()) {4406            return true;4407        }4408        /** @var float $end */4409        $end = 0.0;4410        /** @var float $start */4411        $start = microtime(true);4412        /** @var ParagonIE_Sodium_Core32_Int64 $a */4413        $a = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));4414        for ($i = 0; $i < $iterations; ++$i) {4415            /** @var ParagonIE_Sodium_Core32_Int64 $b */4416            $b = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));4417            $a->mulInt64($b);4418        }4419        /** @var float $end */4420        $end = microtime(true);4421        /** @var int $diff */4422        $diff = (int) ceil(($end - $start) * 1000);4423        return $diff < $maxTimeout;4424    }