Choose benchmark test, operation and batch mode:

When one or more of the All filters is selected - only average normalized results are displayed. Please read Running and Results for more details.

Comparison of database storage efficiency - entity objects per MB (higher is better)

 Derby
embedded		H2
embedded		HSQLDB
embedded		SQLite
embedded		DB4O
embedded		ObjectDB
embedded		Derby
server		H2
server		MySQL
server		PostgreSQL
server		ObjectDB
server
DataNucleus4,0192,0403,125 2,671      
EclipseLink3,8512,9583,1245,994       
Hibernate3,9752,0403,1246,808       
OpenJPA3,9892,0403,124        
ObjectDB     7,547     

Disk space efficiency chart - The Y-Axis represents normalized score in logarithmic scale - higher is better:
JPA performance benchmark comparision Hibernate, EclipseLink, OpenJPA, DataNucleus, ObjectDB

Disk space efficiency chart - The Y-Axis represents normalized score in linear scale - higher is better:
JPA performance benchmark comparision Hibernate, EclipseLink, OpenJPA, DataNucleus, ObjectDB

Best and Worst JPA/Database Performer in this comparison

The Most Efficient:

1. ObjectDB embedded100
2. Hibernate with SQLite embedded90.2
3. EclipseLink with SQLite embedded79.4
4. DataNucleus with Derby embedded53.3
5. OpenJPA with Derby embedded52.8
6. Hibernate with Derby embedded52.7
7. EclipseLink with Derby embedded51.0
8. DataNucleus with HSQLDB embedded41.4

The Least Efficient:

9. EclipseLink with HSQLDB embedded41.4
10. Hibernate with HSQLDB embedded41.4
11. OpenJPA with HSQLDB embedded41.4
12. EclipseLink with H2 embedded39.2
13. DataNucleus with DB4O embedded35.4
14. DataNucleus with H2 embedded27.0
15. Hibernate with H2 embedded27.0
16. OpenJPA with H2 embedded27.0