Bug 75130 [Workbench] Workbench could avoid re-reading feature ini's to speed startup
Build 3.0.1. This is a very small improvement, but it was large enough to show up on my list of potential optimizations. Essentially it avoids re-reading the feature INI's on startup. Our product has LOTS of feature plug-ins (103), so this adds up. Attached is the proposed change; it isn't sophisticated, essentially saying "if I had at least one tips and tricks / welcome page before, I probably have one now". To be more robust, the stored preference would have to be cleared on a -clean. The net savings on a 3GHz P4 / 2G RAM was 181ms for multiple warm runs. It obviously should be a tad larger for cold runs on a less performant machine.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/WorkbenchActionBuilder.java
pinEditorContributionItem = ContributionItemFactory.PIN_EDITOR
                .create(window);
        
    }
    /**
     * Update the build actions on the toolbar and menu bar based on the 
     * current state of autobuild.  This method can be called from any thread.
     */
    void updateBuildActions() {
        
        Runnable update = new Runnable() {
            public void run() {
                if (isDisposed)
                	return;
		    	IWorkspace workspace = ResourcesPlugin.getWorkspace();
				IProject[] projects = workspace.getRoot().getProjects();
		    	boolean enabled = BuildUtilities.isEnabled(projects, IncrementalProjectBuilder.INCREMENTAL_BUILD);
		        
		        buildAllAction.setEnabled(enabled);
		        buildProjectAction.setEnabled(enabled);
		        toggleAutoBuildAction.setChecked(workspace.isAutoBuilding());
		        cleanAction.setEnabled(BuildUtilities.isEnabled(projects, IncrementalProjectBuilder.CLEAN_BUILD));
		
		        
		        ICoolBarManager coolBarManager = getActionBarConfigurer()
		                .getCoolBarManager();
		        IContributionItem cbItem = coolBarManager
		                .find(IWorkbenchActionConstants.TOOLBAR_FILE);
		        if (!(cbItem instanceof ToolBarContributionItem)) {