Information processing device

A non-transitory computer readable medium storing a program, in an information processing device, for achieving:

• an updating unit that acquires update information, updates data pre-stored in a storage unit, and acquires difference information between the pre-update data and the post-update data;
• a communication state acquisition unit that acquires a communication state of each of a plurality of communication channels to communicate with another information processing device storing the pre-update data;
• a difference information splitting unit that, based on the communication state of each of the plurality of communication channels acquired by the communication state acquisition unit, splits the difference information, which is acquired by the updating unit, so as to be related with each of the communication channels;
• and
• a transmission unit that transmits each of pieces of the difference information split by the difference information splitting unit to the another information processing device through the communication channels related with the pieces of the split difference information, respectively, wherein
• the communication state acquisition unit computes, as the communication state, transfer time period when transmitting information having a preset size, for each of the plurality of communication channels, and,
• based on a ratio of the transfer time period for each of the communication channels computed by the communication state acquisition unit, the difference information splitting unit splits the difference information, which is acquired by the updating unit, so as to be related with each of the communication channels.

An information processing method comprising:

• acquiring update information, updating data pre-stored in a storage unit, and acquiring difference information between the pre-update data and the post-update data;
• acquiring a communication state of each of a plurality of communication channels to communicate with another information processing device storing the pre-update data;
• based on the acquired communication state of each of the plurality of communication channels, splitting the acquired difference information so as to be related with each of the communication channels;
• transmitting pieces of the split difference information to the another information processing device through the communication channels related with the pieces of the difference information split while being associated with each of the communication channels, respectively;
• computing, as the communication state, transfer time period when transmitting information having a preset size, for each of the plurality of communication channels;
• and,
• based on a ratio of the computed transfer time period for each of the communication channels, splitting the acquired difference information so as to be related with the communication channels, respectively.