公开(公告)号：US10200445B2

公开(公告)日：2019-02-05

申请号：US15496346

申请日：2017-04-25

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Seungwon Shin ,  Heedo Kang ,  Seungsoo Lee ,  Changhoon Yoon

IPC: H04L29/08 ,  H04L12/24 ,  H04L12/26 ,  H04L29/12

Abstract: A method, an apparatus, and a computer program for analyzing performance of a network application program are provided. The method for analyzing performance of a network application program which operates at a controller in a software defined networking (SDN) environment may include receiving identification information of the application program, flow information, and network configuration information of a network controlled by the controller, emulating a virtual network using the network configuration information, executing the virtual network using the flow information, measuring a time, when a virtual controller processes a flow, on a function basis, extracting information corresponding to the identification information of the application program from the measured result, and analyzing a performance degradation factor of the application program using the extracted information. According to an embodiment, a network manager automatically searches for a critical path and a hotspot using a conventional profiling scheme.