Textures in Second Life: Measurement and Analysis

13 years 10 months ago

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We collected packet traces from Second Life client sessions and analyzed the packet contents. We observed that textures constitute a majority of the network trafﬁc. We further characterized the textures from three selected regions in Second Life in terms of their size and spatial distributions. We found that textures in these regions exhibit a diﬀerent size distribution from ﬁles on a ﬁle system or documents on the Web. We also veriﬁed the intuition that texture objects are spatially non-uniformly distributed. Surprisingly, we found that the selected Second Life regions can contain up to hundreds of megabytes of textures, and there exist locations in these regions that encompass a large portion of these textures within their area-of-interest. Our work motivates the need to manage textures carefully and eﬃciently in the design of networked virtual environments such as Second Life, and hints at the amount of storage and bandwidth required at a peer if peer-to-peer techniques...

Huiguang Liang, Mehul Motani, Wei Tsang Ooi

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