Comparison of DataNucleus with PostgreSQL server vs ObjectDB 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
	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server
Basic Person Test	4.1	35.2	2.6	74.1	3.3	54.7
Element Collection Test	0.91	38.2	0.38	57.8	0.64	48.0
Inheritance Test	3.8	32.7	2.4	72.8	3.1	52.7
Indexing Test	6.0	49.9	6.4	90.1	6.2	70.0
Graph (Binary Tree) Test	0.91	100	0.77	89.2	0.84	94.6
Multithreading Test	18.0	76.6	8.3	99.4	13.1	88.0
All Tests	5.6	55.4	3.5	80.6	4.5	68.0

The results above show that in general ObjectDB server is much more efficient than DataNucleus with PostgreSQL server in persisting JPA entity objects to the database. Comparing the normalized speed of DataNucleus with PostgreSQL database server (4.5) to the normalized speed of ObjectDB database server (68.0) reveals that in these tests, ObjectDB server is 15.1 times faster than DataNucleus with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large transaction size. Comparing the normalized speed of DataNucleus with PostgreSQL database server (0.38) to the normalized speed of ObjectDB database server (57.8) reveals that in that case, ObjectDB server is 152 times faster than DataNucleus with PostgreSQL server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server
Basic Person Test	1.7	15.7	7.6	45.4	4.6	30.5
Element Collection Test	0.73	19.9	0.63	49.2	0.68	34.6
Inheritance Test	1.5	13.2	9.3	49.4	5.4	31.3
Indexing Test	1.5	14.0	9.2	59.5	5.3	36.8
Graph (Binary Tree) Test	2.6	19.9	12.3	24.7	7.4	22.3
Multithreading Test	3.4	19.7	10.8	60.2	7.1	40.0
All Tests	1.9	17.1	8.3	48.1	5.1	32.6

The results above show that in general ObjectDB server is much more efficient than DataNucleus with PostgreSQL server in retrieving JPA entity objects from the database. Comparing the normalized speed of DataNucleus with PostgreSQL database server (5.1) to the normalized speed of ObjectDB database server (32.6) reveals that in these tests, ObjectDB server is 6.4 times faster than DataNucleus with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large retrieval size. Comparing the normalized speed of DataNucleus with PostgreSQL database server (0.63) to the normalized speed of ObjectDB database server (49.2) reveals that in that case, ObjectDB server is 78.1 times faster than DataNucleus with PostgreSQL server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server
Basic Person Test	49.1	38.8	4.7	25.9	26.9	32.4
Element Collection Test	39.1	39.5	0.48	33.1	19.8	36.3
Inheritance Test	55.9	34.8	6.6	34.0	31.2	34.4
Indexing Test	0.048	14.5	6.4	53.3	3.2	33.9
Multithreading Test	failed	50.8	failed	52.1	failed	51.5
All Tests	36.0	35.7	4.5	39.7	20.3	37.7

DataNucleus with PostgreSQL server has failed in 2 tests (see exceptions).

The results above show that in general ObjectDB server is more efficient than DataNucleus with PostgreSQL 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 DataNucleus with PostgreSQL database server (0.048) to the normalized speed of ObjectDB database server (14.5) reveals that in that case, ObjectDB server is 302 times faster than DataNucleus with PostgreSQL server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server
Basic Person Test	2.1	18.3	0.84	40.9	1.5	29.6
Element Collection Test	1.4	21.1	0.64	53.7	1.0	37.4
Inheritance Test	2.1	19.9	1.2	51.9	1.7	35.9
Indexing Test	2.2	17.9	1.5	52.1	1.8	35.0
Graph (Binary Tree) Test	0.65	42.6	0.20	24.1	0.42	33.3
Multithreading Test	0.46	68.6	failed	68.7	0.46	68.6
All Tests	1.5	31.4	0.87	48.6	1.2	40.0

DataNucleus with PostgreSQL server has failed in 1 tests (see exceptions).

The results above show that in general ObjectDB server is much more efficient than DataNucleus with PostgreSQL server in updating JPA entity objects in the database. Comparing the normalized speed of DataNucleus with PostgreSQL database server (1.2) to the normalized speed of ObjectDB database server (40.0) reveals that in these tests, ObjectDB server is 33.3 times faster than DataNucleus with PostgreSQL server.

A huge performance gap has been detected when using multithreading with small transaction size. Comparing the normalized speed of DataNucleus with PostgreSQL database server (0.46) to the normalized speed of ObjectDB database server (68.6) reveals that in that case, ObjectDB server is 149 times faster than DataNucleus with PostgreSQL server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server
Basic Person Test	3.0	20.2	1.3	67.7	2.2	44.0
Element Collection Test	1.0	22.9	0.39	57.6	0.69	40.2
Inheritance Test	2.8	23.1	1.3	61.6	2.1	42.3
Indexing Test	5.4	34.9	1.9	55.9	3.7	45.4
Graph (Binary Tree) Test	0.38	19.3	0.37	27.9	0.37	23.6
Multithreading Test	13.8	38.5	failed	50.5	13.8	44.5
All Tests	4.4	26.5	1.1	53.5	2.9	40.0

DataNucleus with PostgreSQL server has failed in 1 tests (see exceptions).

The results above show that in general ObjectDB server is much more efficient than DataNucleus with PostgreSQL server in deleting JPA entity objects from the database. Comparing the normalized speed of DataNucleus with PostgreSQL database server (2.9) to the normalized speed of ObjectDB database server (40.0) reveals that in these tests, ObjectDB server is 13.8 times faster than DataNucleus with PostgreSQL server.

A huge performance gap has been detected when using JPA element collections with large transaction size. Comparing the normalized speed of DataNucleus with PostgreSQL database server (0.39) to the normalized speed of ObjectDB database server (57.6) reveals that in that case, ObjectDB server is 148 times faster than DataNucleus with PostgreSQL server.

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

Transaction/Retrieval Size	Few Entities		Many Entities		Average Score
	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server	DataNucleus PostgreSQL server	ObjectDB server
Basic Person Test	12.0	25.6	3.4	50.8	7.7	38.2
Element Collection Test	8.6	28.3	0.50	50.3	4.6	39.3
Inheritance Test	13.2	24.7	4.2	53.9	8.7	39.3
Indexing Test	3.0	26.2	5.1	62.2	4.0	44.2
Graph (Binary Tree) Test	1.1	45.4	3.4	41.5	2.3	43.5
Multithreading Test	8.9	50.8	9.5	66.2	9.1	58.5
All Tests	8.0	33.1	3.8	54.6	6.0	43.9

The results above show that in general ObjectDB server is much more efficient than DataNucleus with PostgreSQL server in performing JPA database operations. Comparing the normalized speed of DataNucleus with PostgreSQL database server (6.0) to the normalized speed of ObjectDB database server (43.9) reveals that in these tests, ObjectDB server is 7.3 times faster than DataNucleus 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 DataNucleus with PostgreSQL database server (0.50) to the normalized speed of ObjectDB database server (50.3) reveals that in that case, ObjectDB server is 101 times faster than DataNucleus with PostgreSQL server.

JPA Performance Benchmark (JPAB)