Bringing Reconfigurability to the Network Stack.
CoRR(2023)
摘要
Reconfiguring the network stack allows applications to specialize the
implementations of communication libraries depending on where they run, the
requests they serve, and the performance they need to provide. Specializing
applications in this way is challenging because developers need to choose the
libraries they use when writing a program and cannot easily change them at
runtime. This paper introduces Bertha, which allows these choices to be changed
at runtime without limiting developer flexibility in the choice of network and
communication functions. Bertha allows applications to safely use optimized
communication primitives (including ones with deployment limitations) without
limiting deployability. Our evaluation shows cases where this results in 16x
higher throughput and 63% lower latency than current portable approaches while
imposing minimal overheads when compared to a hand-optimized versions that use
deployment-specific communication primitives.
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