Comparison of EclipseLink with H2 embedded vs Hibernate with MySQL server

Each of the following tables focuses on a specific database operation, where the last table presents average results comparison.

Speed comparison of JPA database persistence operations (normalized score, higher is better)

Transaction Size =>	Few Entities		Many Entities		Average Score
	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server
Basic Person Test	25.1	3.6	8.9	1.6	17.0	2.6
Element Collection Test	20.4	1.6	8.0	0.72	14.2	1.1
Inheritance Test	28.7	3.7	8.7	1.6	18.7	2.7
Indexing Test	37.6	5.4	14.0	2.6	25.8	4.0
Graph (Binary Tree) Test	17.7	1.5	14.7	1.2	16.2	1.4
Multithreading Test	30.3	7.4	11.4	2.9	20.8	5.2
All Tests	26.6	3.9	10.9	1.8	18.8	2.8

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with MySQL server in persisting JPA entity objects to the database. Comparing the normalized speed of Hibernate with MySQL database server (2.8) to the normalized speed of EclipseLink with H2 embedded database (18.8) reveals that in these tests, EclipseLink with H2 embedded is 6.7 times faster than Hibernate with MySQL server.

A huge performance gap has been detected when using JPA element collections with small transaction size. Comparing the normalized speed of Hibernate with MySQL database server (1.6) to the normalized speed of EclipseLink with H2 embedded database (20.4) reveals that in that case, EclipseLink with H2 embedded is 12.7 times faster than Hibernate with MySQL server.

Speed comparison of JPA database retrieval operations (normalized score, higher is better)

Retrieval Size =>	Few Entities		Many Entities		Average Score
	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server
Basic Person Test	30.4	3.0	29.1	11.0	29.7	7.0
Element Collection Test	19.6	0.34	27.6	1.2	23.6	0.79
Inheritance Test	33.8	1.3	39.8	14.5	36.8	7.9
Indexing Test	22.2	2.5	41.3	12.8	31.8	7.6
Graph (Binary Tree) Test	16.0	0.55	20.0	0.71	18.0	0.63
Multithreading Test	33.7	0.23	29.0	13.8	31.4	7.0
All Tests	25.9	1.3	31.1	9.0	28.5	5.2

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with MySQL server in retrieving JPA entity objects from the database. Comparing the normalized speed of Hibernate with MySQL database server (5.2) to the normalized speed of EclipseLink with H2 embedded database (28.5) reveals that in these tests, EclipseLink with H2 embedded is 5.5 times faster than Hibernate with MySQL server.

A huge performance gap has been detected when using multithreading with small retrieval size. Comparing the normalized speed of Hibernate with MySQL database server (0.23) to the normalized speed of EclipseLink with H2 embedded database (33.7) reveals that in that case, EclipseLink with H2 embedded is 147 times faster than Hibernate with MySQL server.

Speed comparison of JPA database query operations (normalized score, higher is better)

Retrieval Size =>	Few Entities		Many Entities		Average Score
	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server
Basic Person Test	4.4	10.0	1.4	2.0	2.9	6.0
Element Collection Test	4.1	6.7	2.4	0.53	3.2	3.6
Inheritance Test	3.4	2.8	2.0	1.6	2.7	2.2
Indexing Test	13.0	0.44	22.8	2.0	17.9	1.2
Multithreading Test	1.0	2.1	0.67	0.98	0.85	1.5
All Tests	5.2	4.4	5.9	1.4	5.5	2.9

The results above show that in general EclipseLink with H2 embedded is more efficient than Hibernate with MySQL server in executing the tested JPA queries.

A huge performance gap has been detected when using database indexes with small retrieval size. Comparing the normalized speed of Hibernate with MySQL database server (0.44) to the normalized speed of EclipseLink with H2 embedded database (13.0) reveals that in that case, EclipseLink with H2 embedded is 29.5 times faster than Hibernate with MySQL server.

On the other hand, EclipseLink with H2 embedded is slower, for instance, when using simple basic entities with small retrieval size. Comparing the normalized speed of EclipseLink with H2 embedded database (4.4) to the normalized speed of Hibernate with MySQL database server (10.0) reveals that in that case, EclipseLink with H2 embedded is 2.3 times slower than Hibernate with MySQL server.

Speed comparison of JPA database update operations (normalized score, higher is better)

Transaction Size =>	Few Entities		Many Entities		Average Score
	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server
Basic Person Test	16.6	0.73	7.6	1.6	12.1	1.2
Element Collection Test	15.3	0.39	10.5	1.2	12.9	0.78
Inheritance Test	15.7	0.61	9.8	2.1	12.7	1.4
Indexing Test	12.1	0.81	9.9	2.6	11.0	1.7
Graph (Binary Tree) Test	13.7	0.69	7.0	0.40	10.3	0.54
Multithreading Test	20.9	0.63	4.2	3.0	12.6	1.8
All Tests	15.7	0.64	8.2	1.8	12.0	1.2

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with MySQL server in updating JPA entity objects in the database. Comparing the normalized speed of Hibernate with MySQL database server (1.2) to the normalized speed of EclipseLink with H2 embedded database (12.0) reveals that in these tests, EclipseLink with H2 embedded is 10.0 times faster than Hibernate with MySQL server.

A huge performance gap has been detected when using JPA element collections with small transaction size. Comparing the normalized speed of Hibernate with MySQL database server (0.39) to the normalized speed of EclipseLink with H2 embedded database (15.3) reveals that in that case, EclipseLink with H2 embedded is 39.2 times faster than Hibernate with MySQL server.

Speed comparison of JPA database removal operations (normalized score, higher is better)

Transaction Size =>	Few Entities		Many Entities		Average Score
	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server
Basic Person Test	35.1	1.1	19.6	1.7	27.4	1.4
Element Collection Test	19.3	0.21	8.5	0.53	13.9	0.37
Inheritance Test	36.0	0.65	14.0	1.8	25.0	1.2
Indexing Test	42.5	0.81	19.2	2.0	30.9	1.4
Graph (Binary Tree) Test	12.2	0.55	14.4	0.62	13.3	0.58
Multithreading Test	54.4	0.35	25.8	4.1	40.1	2.2
All Tests	33.3	0.61	16.9	1.8	25.1	1.2

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with MySQL server in deleting JPA entity objects from the database. Comparing the normalized speed of Hibernate with MySQL database server (1.2) to the normalized speed of EclipseLink with H2 embedded database (25.1) reveals that in these tests, EclipseLink with H2 embedded is 20.9 times faster than Hibernate with MySQL server.

A huge performance gap has been detected when using multithreading with small transaction size. Comparing the normalized speed of Hibernate with MySQL database server (0.35) to the normalized speed of EclipseLink with H2 embedded database (54.4) reveals that in that case, EclipseLink with H2 embedded is 155 times faster than Hibernate with MySQL server.

Comparison of JPA/Database speed - the averages (normalized score, higher is better)

Transaction/Retrieval Size	Few Entities		Many Entities		Average Score
	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server	EclipseLink H2 embedded	Hibernate MySQL server
Basic Person Test	22.3	3.7	13.3	3.6	17.8	3.6
Element Collection Test	15.7	1.8	11.4	0.84	13.6	1.3
Inheritance Test	23.5	1.8	14.9	4.3	19.2	3.1
Indexing Test	25.5	2.0	21.5	4.4	23.5	3.2
Graph (Binary Tree) Test	14.9	0.83	14.0	0.73	14.5	0.78
Multithreading Test	28.1	2.1	14.2	5.0	21.1	3.6
All Tests	21.9	2.1	14.9	3.2	18.4	2.7

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with MySQL server in performing JPA database operations. Comparing the normalized speed of Hibernate with MySQL database server (2.7) to the normalized speed of EclipseLink with H2 embedded database (18.4) reveals that in these tests, EclipseLink with H2 embedded is 6.8 times faster than Hibernate with MySQL server.

A huge performance gap has been detected when using graphs of objects with large transaction/retrieval size. Comparing the normalized speed of Hibernate with MySQL database server (0.73) to the normalized speed of EclipseLink with H2 embedded database (14.0) reveals that in that case, EclipseLink with H2 embedded is 19.2 times faster than Hibernate with MySQL server.

JPA Performance Benchmark (JPAB)