The Open Source Database Benchmark by Roberto Zicari · Published January 1, 2005 · Updated February 16, 2014 PolePosition on SourceForge Open source benchmark that helps to assess performance implication of using ODBMSs, RDBMSs and ORMs. LINK
Eclipse Foundation: Indigo-CDO Model Repository January 1, 2011 by Roberto Zicari · Published January 1, 2011 · Last modified February 16, 2014
OO7J benchmark February 1, 2010 by Roberto Zicari · Published February 1, 2010 · Last modified February 16, 2014
The ZooDB Object Database January 23, 2015 by Roberto Zicari · Published January 23, 2015 · Last modified May 17, 2015