"For all the highlights of the open-source philosophy, there are times when something open-source is clearly inferior, at least at a specific moment in time," saying a gaming enthusiast and programmer.
Running Eclipse in Ubuntu’s Feisty repository requires the GNU Interpreter for Java (GIJ), and that is what he says makes Eclipse run at a fraction of the speed, adding that uninstalling GIJ means uninstalling Eclipse.
The solution offered? Make sure the package “sun-java-jre” is installed, then add the line “/usr/lib/jvm/java-6-sun” is to the top of the file “/etc/eclipse/java_home” as root. This should make Eclipse, in author’s own words, "too fast".