2006 2007 2008 2009 2010 2011 2012.1-2Q PostgreSQL 16 40 24 72 86 32 4 Linux 11 21 24 13 38 67 15 Heartbeat /Pacemaker 3 25 25 37 35 92 29 UltraMonkey 7 12 51 0 Tomcat /mod_jk 15 7 10 34 25 10 JBoss 10 10 0 OpenJDK 2 0 50 100 150 200 250 300