Comparison of OpenJPA with HSQLDB server vs DataNucleus with PostgreSQL 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
	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server
Basic Person Test	failed	8.8	failed	10.8	failed	9.8
Element Collection Test	failed	3.5	failed	3.4	failed	3.4
Inheritance Test	failed	4.6	failed	11.2	failed	7.9
Indexing Test	failed	8.7	failed	12.1	failed	10.4
Graph (Binary Tree) Test	failed	2.7	failed	3.1	failed	2.9
Multithreading Test	failed	7.4	failed	0.0000	failed	3.7
All Tests	failed	5.9	failed	6.8	failed	6.3

OpenJPA with HSQLDB server has failed in 12 tests (see exceptions).

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server
Basic Person Test	failed	1.1	failed	4.3	failed	2.7
Element Collection Test	failed	0.57	failed	3.4	failed	2.0
Inheritance Test	failed	0.68	failed	5.7	failed	3.2
Indexing Test	failed	0.62	failed	4.7	failed	2.7
Graph (Binary Tree) Test	failed	1.3	failed	4.2	failed	2.7
Multithreading Test	failed	1.1	failed	6.1	failed	3.6
All Tests	failed	0.90	failed	4.7	failed	2.8

OpenJPA with HSQLDB server has failed in 12 tests (see exceptions).

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server
Basic Person Test	failed	0.21	failed	1.1	failed	0.67
Element Collection Test	failed	0.41	failed	1.4	failed	0.88
Inheritance Test	failed	0.16	failed	1.3	failed	0.74
Indexing Test	failed	0.15	failed	1.0	failed	0.60
Multithreading Test	failed	failed	failed	failed	failed	failed
All Tests	failed	0.24	failed	1.2	failed	0.72

OpenJPA with HSQLDB server has failed in 10 tests (see exceptions). DataNucleus with PostgreSQL server has failed in 2 tests (see exceptions).

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server
Basic Person Test	failed	0.81	failed	0.72	failed	0.77
Element Collection Test	failed	1.6	failed	0.73	failed	1.1
Inheritance Test	failed	0.98	failed	0.92	failed	0.95
Indexing Test	failed	2.5	failed	1.0	failed	1.8
Graph (Binary Tree) Test	failed	0.50	failed	0.31	failed	0.40
Multithreading Test	failed	0.079	failed	failed	failed	0.079
All Tests	failed	1.1	failed	0.74	failed	0.92

OpenJPA with HSQLDB server has failed in 12 tests (see exceptions). DataNucleus with PostgreSQL server has failed in 1 tests (see exceptions).

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server
Basic Person Test	failed	1.8	failed	0.81	failed	1.3
Element Collection Test	failed	2.7	failed	0.25	failed	1.5
Inheritance Test	failed	2.1	failed	0.59	failed	1.3
Indexing Test	failed	3.4	failed	0.57	failed	2.0
Graph (Binary Tree) Test	failed	3.4	failed	4.8	failed	4.1
Multithreading Test	failed	failed	failed	0.0000	failed	0.0000
All Tests	failed	2.7	failed	1.2	failed	1.8

OpenJPA with HSQLDB server has failed in 12 tests (see exceptions). DataNucleus with PostgreSQL server has failed in 1 tests (see exceptions).

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

Transaction/Retrieval Size	Few Entities		Many Entities		Average Score
	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server
Basic Person Test	failed	2.5	failed	3.5	failed	3.0
Element Collection Test	failed	1.7	failed	1.8	failed	1.8
Inheritance Test	failed	1.7	failed	4.0	failed	2.8
Indexing Test	failed	3.1	failed	3.9	failed	3.5
Graph (Binary Tree) Test	failed	2.0	failed	3.1	failed	2.5
Multithreading Test	failed	2.9	failed	2.0	failed	2.4
All Tests	failed	2.3	failed	3.1	failed	2.7

JPA Performance Benchmark (JPAB)