
DevLoop has
just published a
free paper (
US mirror) [zipped .pdf]
benchmarking some popular database systems such as MySQL, PostgreSQL, Firebird, DB2, Informix, Sybase SQL Anywhere, on Linux using JDBC. The focus here is on non-real setups where we can analyze the individual aspects that might affect system performance. The code is available (GPL) so that anyone can reproduce the results.