Symfony 4.0

	Benchmark		Config		Concurrence 1		Concurrence 5		Concurrence 10		Concurrence 20		Score
	Hello world				1,1 ms	932 rq/sec	0,8 ms	6 084 rq/sec	1,5 ms	6 602 rq/sec	3 ms	6 572 rq/sec	11 618
	API REST				1,8 ms	557 rq/sec	1,6 ms	3 219 rq/sec	2,8 ms	3 531 rq/sec	5,7 ms	3 527 rq/sec	17 633

Outils de performance

Get Doctrine stats : managed entities, lazy loaded entities, hydration time etc.

steevanb/doctrine-stats

Add SimpleObject and ReadOnly hydrators do Doctrine (3,5x faster).

steevanb/doctrine-read-only-hydrator

Add hint MERGE_ENTITY to merge fields retrieved by many queries with PARTIAL.

steevanb/doctrine-entity-merger

View Symfony Container instantiated services, public / private services etc.