Bug 77320 Junit performance [JUnit]
We have 2315 unit tests. When run from Eclipse, it's reporting to take ~122 seconds. When run from ant, it reports taking ~25 seconds. The majority of this time is spent with the JUnit view showing "Launching...". This has gotten worse and worse as we add more UTs. I expect Eclipse to be slower than Ant, but not by this much.
org.eclipse.jdt.junit/src/org/eclipse/jdt/internal/junit/ui/TestRunnerViewPart.java
static final int REFRESH_INTERVAL= 200;
 	/**
 	 * Number of executed tests during a test run
 	 */
	protected volatile int fExecutedTests;
	/**
	 * Number of errors during this test run
	 */
	protected volatile int fErrorCount;
	/**
	 * Number of failures during this test run
	 */
	protected volatile int fFailureCount;
	/**
	 * Number of tests run
	 */
	protected volatile int fTestCount;
	/**
	 * Whether the output scrolls and reveals tests as they are executed.
	 */
	protected boolean fAutoScroll = true;
	/**
	 * The current orientation; either <code>VIEW_ORIENTATION_HORIZONTAL</code>
	 * <code>VIEW_ORIENTATION_VERTICAL</code>, or <code>VIEW_ORIENTATION_AUTOMATIC</code>.
	 */
	private int fOrientation= VIEW_ORIENTATION_AUTOMATIC;
	/**
	 * The current orientation; either <code>VIEW_ORIENTATION_HORIZONTAL</code>
	 * <code>VIEW_ORIENTATION_VERTICAL</code>.
	 */