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Since the demand in new business based IT convergence medical device has increased rapidly around the world, health care service based on IoT has been developing in earnest. The center of self-organizing software platform has developed SLiM-Hub for using in the medical institution such as hospital. SLiM Hub system is an embedded system interacting with numerous health care devices in wire and wireless communication. Since the services of SLiM Hub handle patient information such as blood pressure, heart pulse and state of patient, delay of service execution directly or indirectly affects the health of patients. However, it is difficult to measure execution time of multi-service at once in the SLiM-Hub system interacting with numerous trackee and tracker. In this paper, a virtualization based simulation technique for trackee and tracker nodes is proposed for measuring execution time of multi-service at one. For showing extensibility of the proposed technique, overhead analysis by increasing the number of nodes is performed.