Bug 137176 It takes unacceptable long time to render a report
Description: Get the attached report design, preview in report designer. It takes unacceptable long time to render a report, and users could not get the output finally. Even during the rending, the computer could not do anything else.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
boolean svgFlag ) throws RemoteException
	{
		runAndRenderReport( request, runnable, outputStream, format, locale,
				rtl, parameters, masterPage, svgFlag, null, null, null );
	}
	/**
	 * Run and render a report,
	 * 
	 * @param runnable
	 * @param outputStream
	 * @param locale
	 * @param parameters
	 * @param svgFlag
	 * @param activeIds
	 * @throws IOException
	 */
	public void runAndRenderReport( HttpServletRequest request,
			IReportRunnable runnable, ByteArrayOutputStream outputStream,
			Locale locale, boolean rtl, Map parameters, boolean masterPage,
			boolean svgFlag, List activeIds, HTMLRenderContext htmlRenderContext )
			throws RemoteException
	{
		runAndRenderReport( request, runnable, outputStream,
				ParameterAccessor.PARAM_FORMAT_HTML, locale, rtl, parameters,
				masterPage, svgFlag, Boolean.TRUE, activeIds, htmlRenderContext );
	}
	private void runAndRenderReport( HttpServletRequest request,
			IReportRunnable runnable, OutputStream outputStream, String format,
			Locale locale, boolean rtl, Map parameters, boolean masterPage,
			boolean svgFlag, Boolean embeddable, List activeIds,