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

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

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
	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server	DataNucleus PostgreSQL server	OpenJPA HSQLDB server
Basic Person Test	0.21	failed	1.1	failed	0.67	failed
Element Collection Test	0.41	failed	1.4	failed	0.88	failed
Inheritance Test	0.16	failed	1.3	failed	0.74	failed
Indexing Test	0.15	failed	1.0	failed	0.60	failed
Multithreading Test	failed	failed	failed	failed	failed	failed
All Tests	0.24	failed	1.2	failed	0.72	failed

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

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

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

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

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

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

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

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

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

JPA Performance Benchmark (JPAB)