NEWS - PRESS RELEASE
OO7 Performance Benchmark Now Available in Java
New implementation of 1993 standard benchmark shows significant performance benefits
from using object databases rather than object-relational mappers
SAN FRANCISCO, Calif., Sep. 26, 2006 - ODBMS.ORG, a vendor-independent, non-profit
group of high-profile software experts lead by Prof. Roberto Zicari, announce that
a new benchmark confirms significant performance gains from using object databases
for persisting objects rather than object-relational mappers like Hibernate.
Researchers of the ESPRESSO Research Group
at the Department of Computer Science, University of Pretoria in South Africa, P. van Zyl, A. Boake,
and D. Kourie, have ported the OO7 benchmark from C++ to Java to test the performance
of state-of-the-art object persistence solutions. The OO7 benchmark is the single
most recognizable benchmark available in the industry and was provided by M.J. Carey
in 1993, based on R. Cattell's
OO1 benchmark from 1992.
The researchers consequently benchmarked the performance of the object database
db4o (from db4objects) against that of the object-relational mapper Hibernate (from
Jboss, now a division of RedHat). In 95% of OO7's predefined test cases, object
databases provide performance far superior to object-relational mappers. For certain
complex queries db4o was 5400% faster than Hibernate.
"By using a benchmark, it has been possible to compare and gain insight into the
performance aspects of two object persistence mechanisms (object databases vs object-relational
mapping to relational databases), as represented by two popular Open Source implementations
(db4o and Hibernate)," wrote the researchers. "It was found that db4o's overall
performance was better than that of Hibernate. Many of the test results seem to
confirm our rules of thumb (here, that the overhead of object-relational translation
causes ORM-based implementations to be consistently slower than staying in object
form with an object database)."
Detailed results are included in the paper "027.01
Comparing the Performance of Object Databases and ORMs" which ODBMS.ORG publishes
in an early version, available for immediate
download. The paper was also submitted to the
SAICSIT 2006 conference in Cape Winelands; a final version will be available
in the near future on ACM and will include some final comments about transactions.
The group's speaker, Pieter
van Zyl, was invited to join ODBMS.ORG's panel of 80 internationally recognizable
experts of object database technology.
Contact ODBMS.ORG at email@example.com.