public void ProcessSerializeExecutionTimeTest()
        {
            IWfProcessDescriptor processDesc = WfProcessTestCommon.CreateSimpleProcessDescriptor();

            int totalProcesses = 40;

            //准备流程实例
            List <IWfProcess> processes = ProcessTestHelper.StartupMultiProcesses(processDesc, totalProcesses);

            ProcessTestHelper.OutputExecutionTime(() =>
            {
                foreach (IWfProcess process in processes)
                {
                    XElementFormatter formatter = new XElementFormatter();
                    XElement root = formatter.Serialize(process);
                }
            },
                                                  string.Format("序列化{0}个流程", totalProcesses));
        }