Comparison of Hibernate with HSQLDB server vs EclipseLink with H2 embedded

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
	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded
Basic Person Test	stopped	15.4	stopped	12.9	stopped	14.2
Element Collection Test	stopped	14.1	stopped	8.4	stopped	11.3
Inheritance Test	stopped	8.4	stopped	9.7	stopped	9.1
Indexing Test	stopped	15.5	stopped	14.2	stopped	14.9
Graph (Binary Tree) Test	stopped	8.5	stopped	7.1	stopped	7.8
Multithreading Test	stopped	12.3	stopped	0.0000	stopped	6.1
All Tests	stopped	12.4	stopped	8.7	stopped	10.5

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with HSQLDB server in persisting JPA entity objects to the database. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (10.5) reveals that in these tests, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded
Basic Person Test	stopped	18.6	stopped	30.2	stopped	24.4
Element Collection Test	stopped	16.3	stopped	21.5	stopped	18.9
Inheritance Test	stopped	19.7	stopped	27.1	stopped	23.4
Indexing Test	stopped	17.9	stopped	29.1	stopped	23.5
Graph (Binary Tree) Test	stopped	5.9	stopped	18.3	stopped	12.1
Multithreading Test	stopped	26.9	stopped	39.9	stopped	33.4
All Tests	stopped	17.6	stopped	27.7	stopped	22.6

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with HSQLDB server in retrieving JPA entity objects from the database. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (22.6) reveals that in these tests, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded
Basic Person Test	stopped	3.5	stopped	12.2	stopped	7.8
Element Collection Test	stopped	7.6	stopped	10.1	stopped	8.9
Inheritance Test	stopped	2.2	stopped	12.3	stopped	7.3
Indexing Test	stopped	11.5	stopped	21.6	stopped	16.6
Multithreading Test	stopped	3.2	stopped	12.0	stopped	7.6
All Tests	stopped	5.6	stopped	13.6	stopped	9.6

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with HSQLDB server in executing the tested JPA queries. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (9.6) reveals that in these tests, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded
Basic Person Test	stopped	21.0	stopped	9.3	stopped	15.1
Element Collection Test	stopped	26.7	stopped	12.3	stopped	19.5
Inheritance Test	stopped	15.6	stopped	14.0	stopped	14.8
Indexing Test	stopped	53.2	stopped	12.4	stopped	32.8
Graph (Binary Tree) Test	stopped	11.4	stopped	6.1	stopped	8.7
Multithreading Test	stopped	14.9	stopped	6.6	stopped	10.7
All Tests	stopped	23.8	stopped	10.1	stopped	17.0

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with HSQLDB server in updating JPA entity objects in the database. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (17.0) reveals that in these tests, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded
Basic Person Test	stopped	43.5	stopped	29.0	stopped	36.2
Element Collection Test	stopped	31.5	stopped	3.9	stopped	17.7
Inheritance Test	stopped	49.9	stopped	20.7	stopped	35.3
Indexing Test	stopped	83.8	stopped	15.9	stopped	49.9
Graph (Binary Tree) Test	stopped	35.3	stopped	39.8	stopped	37.6
Multithreading Test	stopped	28.0	stopped	0.0000	stopped	14.0
All Tests	stopped	45.3	stopped	18.2	stopped	31.8

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with HSQLDB server in deleting JPA entity objects from the database. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (31.8) reveals that in these tests, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

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

Transaction/Retrieval Size	Few Entities		Many Entities		Average Score
	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded
Basic Person Test	stopped	20.4	stopped	18.7	stopped	19.6
Element Collection Test	stopped	19.2	stopped	11.2	stopped	15.2
Inheritance Test	stopped	19.2	stopped	16.8	stopped	18.0
Indexing Test	stopped	36.4	stopped	18.7	stopped	27.5
Graph (Binary Tree) Test	stopped	15.3	stopped	17.8	stopped	16.5
Multithreading Test	stopped	17.0	stopped	11.7	stopped	14.4
All Tests	stopped	21.5	stopped	15.7	stopped	18.6

The results above show that in general EclipseLink with H2 embedded is much more efficient than Hibernate with HSQLDB server in performing JPA database operations. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (18.6) reveals that in these tests, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

A huge performance gap has been detected when using simple basic entities with small transaction/retrieval size. Comparing the normalized speed of Hibernate with HSQLDB database server (0.0000) to the normalized speed of EclipseLink with H2 embedded database (20.4) reveals that in that case, EclipseLink with H2 embedded is ? times faster than Hibernate with HSQLDB server.

JPA Performance Benchmark (JPAB)