Comparison of EclipseLink with PostgreSQL server vs ObjectDB 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
	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded
Basic Person Test	7.3	100	4.2	100	5.8	100
Element Collection Test	3.1	100	1.9	100	2.5	100
Inheritance Test	6.9	100	5.0	100	5.9	100
Indexing Test	10.0	100	6.8	100	8.4	100
Graph (Binary Tree) Test	3.5	88.4	3.3	100	3.4	94.2
Multithreading Test	31.8	100	14.5	100	23.1	100
All Tests	10.4	98.1	6.0	100	8.2	99.0

The results above show that in general ObjectDB embedded is much more efficient than EclipseLink with PostgreSQL server in persisting JPA entity objects to the database. Comparing the normalized speed of EclipseLink with PostgreSQL database server (8.2) to the normalized speed of ObjectDB embedded database (99.0) reveals that in these tests, ObjectDB embedded is 12.1 times faster than EclipseLink with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large transaction size. Comparing the normalized speed of EclipseLink with PostgreSQL database server (1.9) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 52.6 times faster than EclipseLink with PostgreSQL server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded
Basic Person Test	6.8	100	17.2	100	12.0	100
Element Collection Test	0.026	100	0.020	100	0.023	100
Inheritance Test	6.0	100	19.7	100	12.9	100
Indexing Test	5.6	100	19.5	100	12.6	100
Graph (Binary Tree) Test	0.47	100	0.61	100	0.54	100
Multithreading Test	13.5	100	27.8	100	20.6	100
All Tests	5.4	100	14.1	100	9.8	100

The results above show that in general ObjectDB embedded is much more efficient than EclipseLink with PostgreSQL server in retrieving JPA entity objects from the database. Comparing the normalized speed of EclipseLink with PostgreSQL database server (9.8) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 10.2 times faster than EclipseLink with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large retrieval size. Comparing the normalized speed of EclipseLink with PostgreSQL database server (0.020) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 5,000 times faster than EclipseLink with PostgreSQL server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded
Basic Person Test	55.5	100	7.8	100	31.6	100
Element Collection Test	15.4	100	0.028	100	7.7	100
Inheritance Test	54.9	100	11.5	100	33.2	100
Indexing Test	0.077	100	10.0	100	5.1	100
Multithreading Test	55.3	100	12.0	100	33.7	100
All Tests	36.2	100	8.3	100	22.3	100

The results above show that in general ObjectDB embedded is much more efficient than EclipseLink with PostgreSQL server in executing the tested JPA queries. Comparing the normalized speed of EclipseLink with PostgreSQL database server (22.3) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 4.5 times faster than EclipseLink with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large retrieval size. Comparing the normalized speed of EclipseLink with PostgreSQL database server (0.028) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 3,571 times faster than EclipseLink with PostgreSQL server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded
Basic Person Test	6.2	100	4.1	100	5.1	100
Element Collection Test	0.080	100	0.028	100	0.054	100
Inheritance Test	6.4	100	6.1	100	6.2	100
Indexing Test	6.5	100	7.0	100	6.8	100
Graph (Binary Tree) Test	0.90	100	0.50	100	0.70	100
Multithreading Test	36.0	100	9.1	100	22.5	100
All Tests	9.3	100	4.5	100	6.9	100

The results above show that in general ObjectDB embedded is much more efficient than EclipseLink with PostgreSQL server in updating JPA entity objects in the database. Comparing the normalized speed of EclipseLink with PostgreSQL database server (6.9) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 14.5 times faster than EclipseLink with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large transaction size. Comparing the normalized speed of EclipseLink with PostgreSQL database server (0.028) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 3,571 times faster than EclipseLink with PostgreSQL server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded
Basic Person Test	5.7	100	5.7	100	5.7	100
Element Collection Test	0.025	100	stopped	100	0.012	100
Inheritance Test	5.5	100	5.4	100	5.4	100
Indexing Test	10.4	100	10.0	100	10.2	100
Graph (Binary Tree) Test	0.016	100	0.013	100	0.015	100
Multithreading Test	26.3	100	16.8	100	21.6	100
All Tests	8.0	100	6.3	100	7.2	100

The results above show that in general ObjectDB embedded is much more efficient than EclipseLink with PostgreSQL server in deleting JPA entity objects from the database. Comparing the normalized speed of EclipseLink with PostgreSQL database server (7.2) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 13.9 times faster than EclipseLink with PostgreSQL server.

A huge performance gap has been detected when using graphs of objects with large transaction size. Comparing the normalized speed of EclipseLink with PostgreSQL database server (0.013) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 7,692 times faster than EclipseLink with PostgreSQL server.

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

Transaction/Retrieval Size	Few Entities		Many Entities		Average Score
	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded	EclipseLink PostgreSQL server	ObjectDB embedded
Basic Person Test	16.3	100	7.8	100	12.1	100
Element Collection Test	3.7	100	0.40	100	2.1	100
Inheritance Test	15.9	100	9.5	100	12.7	100
Indexing Test	6.5	100	10.7	100	8.6	100
Graph (Binary Tree) Test	1.2	97.1	1.1	100	1.2	98.5
Multithreading Test	32.6	100	16.0	100	24.3	100
All Tests	13.1	99.6	7.8	100	10.5	99.8

The results above show that in general ObjectDB embedded is much more efficient than EclipseLink with PostgreSQL server in performing JPA database operations. Comparing the normalized speed of EclipseLink with PostgreSQL database server (10.5) to the normalized speed of ObjectDB embedded database (99.8) reveals that in these tests, ObjectDB embedded is 9.5 times faster than EclipseLink with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large transaction/retrieval size. Comparing the normalized speed of EclipseLink with PostgreSQL database server (0.40) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 250 times faster than EclipseLink with PostgreSQL server.

JPA Performance Benchmark (JPAB)