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

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

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
	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server	EclipseLink H2 embedded	Hibernate HSQLDB server
Basic Person Test	3.5	stopped	12.2	stopped	7.8	stopped
Element Collection Test	7.6	stopped	10.1	stopped	8.9	stopped
Inheritance Test	2.2	stopped	12.3	stopped	7.3	stopped
Indexing Test	11.5	stopped	21.6	stopped	16.6	stopped
Multithreading Test	3.2	stopped	12.0	stopped	7.6	stopped
All Tests	5.6	stopped	13.6	stopped	9.6	stopped

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

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

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

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)