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
HTMLRenderContext htmlRenderContext ) throws RemoteException
	{
		assert runnable != null;
		
		HTMLRenderOption option = new HTMLRenderOption( );
		option.setOutputStream( outputStream );
		option.setOutputFormat( format );
		option.setMasterPageContent( masterPage );
		option.setHtmlRtLFlag( rtl );		
		
		option.setHtmlTitle( BirtResources.getString( "birt.viewer.title" ) ); 
		if ( embeddable != null )
		{
			option.setEmbeddable( embeddable.booleanValue( ) );
		}
		if ( activeIds != null )
		{
			option.setInstanceIDs( activeIds );
		}
		IRunAndRenderTask runAndRenderTask = null;
		synchronized ( this.getClass( ) )
		{
			runAndRenderTask = engine.createRunAndRenderTask( runnable );
		}
		runAndRenderTask.setLocale( locale );
		if ( parameters != null )
		{
			runAndRenderTask.setParameterValues( parameters );
		}
		runAndRenderTask.setRenderOption( option );