Speaker
Description
For the longest time, IT professionals have not properly distinguished the performance and efficiency of computer systems and software. There are good reasons for this conflation, but it is important to critically scrutinize the underlying assumptions to ensure the sustainable delivery of computing services in the near- and long-term future.
In this presentation I will discuss recent trends that imply the need to more clearly separate efficiency from performance and to understand the detailed trade-offs between both. I will present recent work in the Linux kernel network stack introducing a new hybrid mode of operation for packet retrieval that can operate at high efficiency while only minimally affecting peak performance. In the last part of the talk, I will offer a potential roadmap for studying performance vs. efficiency in system- and application-level software and services.
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