Measuring and Evaluating TCP Splitting for Cloud Services

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Executive Summary

This paper examines the benefits of split-TCP proxies, deployed in an operational world-wide network, for accelerating cloud services. This paper considers a fraction of a network consisting of a large number of satellite datacenters, which host split-TCP proxies, and a smaller number of mega datacenters, which ultimately perform computation or provide storage. Using web search as an exemplary case study, the detailed measurements reveal that a vanilla TCP splitting solution deployed at the satellite DCs reduces the 95th percentile of latency by as much as 43% when compared to serving queries directly from the mega DCs.

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