Session How to Serve a Billion Requests a Day with Perl Kevin Scaldeferri, Lead Developer, Yahoo/Overture Track: Perl Date: Wednesday, August 3rd, 2005 Time: 2:35pm - 3:20pm Location: Portland 256 This session discusses the challenges of building complex services that can handle very high query rates with low latency and high availability. Overture, the sponsored search division of Yahoo!, has developed a number of systems that have successfully scaled over several orders of magnitude in both data volume and query rate, and Scaldeferri will discuss the ideas behind some of these. General topics covered will include: - Caching using local and distributed caches - When and how to distribute your application across multiple machines - Use of asynchronous communication techniques to increase throughput and ensure acceptable response times Scaldeferri also discusses the interplay between different levels of abstraction, from high-level business logic, to practical Perl programming, to low-level OS and hardware behavior, and how all of these affect the design and architecture of such systems.

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