Comparison of OpenJPA with MySQL 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
	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded
Basic Person Test	3.9	100	1.6	100	2.7	100
Element Collection Test	1.6	100	0.68	100	1.1	100
Inheritance Test	3.6	100	1.4	100	2.5	100
Indexing Test	5.6	100	2.4	100	4.0	100
Graph (Binary Tree) Test	0.68	88.4	0.57	100	0.63	94.2
Multithreading Test	7.2	100	2.7	100	4.9	100
All Tests	3.7	98.1	1.5	100	2.6	99.0

The results above show that in general ObjectDB embedded is much more efficient than OpenJPA with MySQL server in persisting JPA entity objects to the database. Comparing the normalized speed of OpenJPA with MySQL database server (2.6) to the normalized speed of ObjectDB embedded database (99.0) reveals that in these tests, ObjectDB embedded is 38.1 times faster than OpenJPA with MySQL server.

A huge performance gap has been detected when using graphs of objects with large transaction size. Comparing the normalized speed of OpenJPA with MySQL database server (0.57) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 175 times faster than OpenJPA with MySQL server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded
Basic Person Test	3.2	100	22.7	100	12.9	100
Element Collection Test	0.0038	100	2.9	100	1.4	100
Inheritance Test	0.017	100	6.9	100	3.4	100
Indexing Test	2.4	100	23.4	100	12.9	100
Graph (Binary Tree) Test	0.27	100	0.35	100	0.31	100
Multithreading Test	0.14	100	18.1	100	9.1	100
All Tests	1.0	100	12.4	100	6.7	100

The results above show that in general ObjectDB embedded is much more efficient than OpenJPA with MySQL server in retrieving JPA entity objects from the database. Comparing the normalized speed of OpenJPA with MySQL database server (6.7) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 14.9 times faster than OpenJPA with MySQL server.

A huge performance gap has been detected when using JPA element collections with small retrieval size. Comparing the normalized speed of OpenJPA with MySQL database server (0.0038) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 26,316 times faster than OpenJPA with MySQL server.

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

Retrieval Size =>	Few Entities		Many Entities		Average Score
	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded
Basic Person Test	9.3	100	2.2	100	5.8	100
Element Collection Test	4.8	100	1.1	100	2.9	100
Inheritance Test	1.5	100	0.90	100	1.2	100
Indexing Test	0.31	100	2.1	100	1.2	100
Multithreading Test	1.9	100	0.99	100	1.4	100
All Tests	3.6	100	1.5	100	2.5	100

The results above show that in general ObjectDB embedded is much more efficient than OpenJPA with MySQL server in executing the tested JPA queries. Comparing the normalized speed of OpenJPA with MySQL database server (2.5) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 40.0 times faster than OpenJPA with MySQL server.

A huge performance gap has been detected when using database indexes with small retrieval size. Comparing the normalized speed of OpenJPA with MySQL database server (0.31) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 323 times faster than OpenJPA with MySQL server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded
Basic Person Test	0.74	100	1.6	100	1.2	100
Element Collection Test	0.014	100	1.7	100	0.87	100
Inheritance Test	0.048	100	2.0	100	1.0	100
Indexing Test	0.74	100	3.0	100	1.9	100
Graph (Binary Tree) Test	0.45	100	0.25	100	0.35	100
Multithreading Test	0.55	100	2.9	100	1.7	100
All Tests	0.42	100	1.9	100	1.2	100

The results above show that in general ObjectDB embedded is much more efficient than OpenJPA with MySQL server in updating JPA entity objects in the database. Comparing the normalized speed of OpenJPA with MySQL database server (1.2) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 83.3 times faster than OpenJPA with MySQL server.

A huge performance gap has been detected when using JPA element collections with small transaction size. Comparing the normalized speed of OpenJPA with MySQL database server (0.014) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 7,143 times faster than OpenJPA with MySQL server.

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

Transaction Size =>	Few Entities		Many Entities		Average Score
	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded
Basic Person Test	0.98	100	1.7	100	1.4	100
Element Collection Test	0.0099	100	0.65	100	0.33	100
Inheritance Test	0.033	100	1.5	100	0.75	100
Indexing Test	0.64	100	2.0	100	1.3	100
Graph (Binary Tree) Test	0.41	100	0.43	100	0.42	100
Multithreading Test	0.27	100	2.9	100	1.6	100
All Tests	0.39	100	1.5	100	0.96	100

The results above show that in general ObjectDB embedded is much more efficient than OpenJPA with MySQL server in deleting JPA entity objects from the database. Comparing the normalized speed of OpenJPA with MySQL database server (0.96) to the normalized speed of ObjectDB embedded database (100) reveals that in these tests, ObjectDB embedded is 104 times faster than OpenJPA with MySQL server.

A huge performance gap has been detected when using JPA element collections with small transaction size. Comparing the normalized speed of OpenJPA with MySQL database server (0.0099) to the normalized speed of ObjectDB embedded database (100) reveals that in that case, ObjectDB embedded is 10,101 times faster than OpenJPA with MySQL server.

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

Transaction/Retrieval Size	Few Entities		Many Entities		Average Score
	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded	OpenJPA MySQL server	ObjectDB embedded
Basic Person Test	3.6	100	6.0	100	4.8	100
Element Collection Test	1.3	100	1.4	100	1.3	100
Inheritance Test	1.0	100	2.5	100	1.8	100
Indexing Test	1.9	100	6.6	100	4.3	100
Graph (Binary Tree) Test	0.45	97.1	0.40	100	0.43	98.5
Multithreading Test	2.0	100	5.5	100	3.8	100
All Tests	1.8	99.6	3.9	100	2.8	99.8

The results above show that in general ObjectDB embedded is much more efficient than OpenJPA with MySQL server in performing JPA database operations. Comparing the normalized speed of OpenJPA with MySQL database server (2.8) to the normalized speed of ObjectDB embedded database (99.8) reveals that in these tests, ObjectDB embedded is 35.6 times faster than OpenJPA with MySQL server.

A huge performance gap has been detected when using graphs of objects with large transaction/retrieval size. Comparing the normalized speed of OpenJPA with MySQL 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 OpenJPA with MySQL server.

JPA Performance Benchmark (JPAB)