Bug 110728 Heap Status needs a preference to turn it off.
Run Eclipse 3.2M2 under OS X 10.4.x. After the initial transient high CPU usage normally seen during Ecllpse start up the CPU usage goes to ~4% at "idle" during routine Java development. After several tens of minutes of normal use the CPU usage climbs to anywhere between 20% to >40% when idling. Quitting and restarting Eclipse 3.2M2 restores the idle CPU usage to ~4%, but it continues to climb with use.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/IDEWorkbenchPreferencePage.java
implements IWorkbenchPreferencePage {
    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.preference.PreferencePage
     */
    protected Control createContents(Composite parent) {
    	PlatformUI.getWorkbench().getHelpSystem().setHelp(parent,