C++Now 2014

Yandex is one of the biggest internet companies in Russia, providing network interactive services, such as web search, e-mail, maps, photo hosting, and so on. Our team develops the e-mail backend, which receives, processes, and sends more than 50 million messages per day for over 6 million active users.

In this talk, we examine a series of Boost-based solutions to tackle these tasks and their effect on performance. We start with a simple Asio + Spirit implementation, discuss its problems and limitations, and then propose workarounds and optimizations. In particular, we show how various reactor patterns affect performance and how the use of coroutines and our specially crafted smart streambufs can help save memory and CPU resources.

(We wish to acknowledge the efforts of Alexander Drachevskiy, who was instrumental in creating this presentation and the code on which it is based, and was to deliver the presentation, but was unable to attend the conference.)