A load balancing scheme for massively multiplayer online games

  • Authors:
  • Carlos Eduardo Bezerra;Cláudio Fernando Geyer

  • Affiliations:
  • Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil 9500;Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil 9500

  • Venue:
  • Multimedia Tools and Applications
  • Year:
  • 2009

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Abstract

In a distributed MMOG (massively multiplayer online game) server architecture, the server nodes may become easily overloaded by the high demand from the players for state updates. Many works propose algorithms to distribute the load on the server nodes, but this load is usually defined as the number of players on each server, what is not an ideal measure. Also, the possible heterogeneity of the system is frequently overlooked. We propose a balancing scheme with two main goals: allocate load on server nodes proportionally to each one's power and reduce the inter-server communication overhead, considering the load as the occupied bandwidth of each server. Four algorithms were proposed, from which ProGReGA is the best for overhead reduction and ProGReGA-KF is the most suited for reducing player migrations between servers. We also make a review of related works and some comparisons were made, where our approach performed better.