JPA comparison: Hibernate, Toplink, OpenJPA, Eclipselink
This article is a performance comparison among the 4 most well known Java Persistence API (JPA) implementations: Toplink Essentials, EclipseLink, Hibernate and OpenJPA.
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This article is a performance comparison among the 4 most well known Java Persistence API (JPA) implementations: Toplink Essentials, EclipseLink, Hibernate and OpenJPA.
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Another (newer) benchmark that compares the performance of JPA implementations and databases has been published:
http://www.jpab.org
It covers many JPA ORM providers (Hibernate, EclipseLink, OpenJPA and DataNucleus) and DBMS (MySQL, PostgreSQL, Derby, HSQLDB, H2, HSQLite, ObjectDB) that are available in Java.