Trying out product creation for Magento2

createProduct.php

<?php
use Magento\Framework\App\Bootstrap;
require __DIR__ . '/app/bootstrap.php';

$bootstrap = Bootstrap::create(BP, $_SERVER);
$objectManager = $bootstrap->getObjectManager();

$state = $objectManager->get('Magento\Framework\App\State');
$state->setAreaCode('frontend');

$start = microtime(true);

echo 'creating repository ...' ;
$productRepository = $objectManager->create('\Magento\Catalog\Api\ProductRepositoryInterface');
echo getDuration() . PHP_EOL . 'creating factory ...' ;
$productFactory = $objectManager->create('\Magento\Catalog\Api\Data\ProductInterfaceFactory');
echo getDuration() . PHP_EOL . 'creating product ...' ;
$product = $productFactory->create();

// We should set required attribute data for product then save it once
// then after that we can use the save attributes for the reset
echo getDuration() . PHP_EOL . 'initialising product ...';
initialiseProductDataForCreateMode($product);
echo getDuration() . PHP_EOL  . 'saving product...' ;
$product->save();
echo getDuration() . PHP_EOL;

function initialiseProductDataForCreateMode($product) {
    $prodNameSku = 'PERFTEST' . rand(0, 999999);
    $product->setName($prodNameSku);
    $product->setSku($prodNameSku);
}

function getDuration() {
    global $start;
    return microtime(true) - $start;
}