Harsha Madhyastha‘s paper “Moving Beyond End-to-End Path Information to Optimize CDN Performance” won the best paper award at IMC 2009. The paper presents measurements information from Google’s production CDN to show that redirecting clients to the nearest CDN node will not necessarily result in the lowest latency. Harsha and his colleagues built a tool called WhyHigh in production use at Google that uses a series of active measurements to diagnose the cause of inflated latency to the relatively large number of clients that experience poor latency to individual CDN nodes. Definitely a worthwhile read.
Congratulations Harsha!
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