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
openPreferencesAction = ActionFactory.PREFERENCES.create(window);
        register(openPreferencesAction);
        addBookmarkAction = IDEActionFactory.BOOKMARK.create(window);
        register(addBookmarkAction);
        addTaskAction = IDEActionFactory.ADD_TASK.create(window);
        register(addTaskAction);
        deleteAction = ActionFactory.DELETE.create(window);
        register(deleteAction);
        AboutInfo[] infos = IDEWorkbenchPlugin.getDefault().getFeatureInfos();
        
        for (int i = 0; i < infos.length; i++) {
            if (infos[i].getWelcomePageURL() != null) {
                quickStartAction = IDEActionFactory.QUICK_START
                        .create(window);
                register(quickStartAction);
                break;
            }
        }
        
        for (int i = 0; i < infos.length; i++) {
            if (infos[i].getTipsAndTricksHref() != null) {
                tipsAndTricksAction = IDEActionFactory.TIPS_AND_TRICKS
                        .create(window);
                register(tipsAndTricksAction);
                break;
            }
        }
        
        showViewMenuAction = ActionFactory.SHOW_VIEW_MENU.create(window);
        register(showViewMenuAction);