Throughput measuring method, computer readable medium, and apparatus

A non-transitory computer readable medium having stored therein a program that causes a computer to execute a process, the process comprising:

• acquiring a plurality of data packets at an observation point on a network, the plurality of data packets being transmitted from a transmission source apparatus and received by a transmission destination apparatus;
• calculating a plurality of round trip times, for each of the data packets, from a time point of acquisition of each of the data packets transmitted from the transmission source apparatus to a time point of acquisition of response packet corresponding to each of the data packets;
• identifying a measurement time section including the plurality of calculated round trip times increasing in ascending order of identification numbers of the response packets;
• and
• calculating a throughput of the identified measurement time section based on data quantities of the plurality of data packets transmitted from the transmission source apparatus during the identified measurement time section.

An apparatus comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• acquire a plurality of data packets at an observation point on a network, the plurality of data packets being transmitted from a transmission source apparatus and received by a transmission destination apparatus;
• calculate a plurality of round trip times, for each of the data packets, from a time point of acquisition of each of the data packets transmitted from the transmission source apparatus to a time point of acquisition of response packet corresponding to each of the data packets;
• identify a measurement time section including the plurality of calculated round trip times increasing in ascending order of identification numbers of the response packets;
• and
• calculate a throughput of the identified measurement time section based on data quantities of the plurality of data packets transmitted from the transmission source apparatus during the identified measurement time section.