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Today's data center servers are equipped with high speed and complex network adaptors, featuring an array of functions, e.g. hardware TX/RX queues, packet filters, rate limiters, etc. Recent work like IX, Arrakis, MultiStack has made us rekindle the user-level network stacks' innovation utilizing these commodity network adaptors. In this paper, we revisit the idea to move stacks' design from in-kernel...
Batch processing is an essential technique to improve packet rates under high-speed network, which has been widely used in high-performance packet IO frameworks. Conventionally, we need to make a tradeoff between high latency at low input loads and high throughput at high loads. In this work, we intend to leverage the smart batching mechanism to dynamically balance the input traffic rate and the available...
Overload detecting mechanisms are the prerequisites for admission controls and differentiated services. Conventional mechanisms are always coordinated with conventional network stacks. As the hardware evolution and applications' increasing demand, the architecture of conventional network stacks make themselves become the bottleneck. In this context, high performance network I/O frameworks have been...
DCTCP is a potential TCP replacement to satisfy the requirements of data center network. It receives wide concerns in both academic and industrial circles. However, DCTCP could only support tens of concurrent flows well and suffers timeouts and throughput collapse facing numerous concurrent flows. This is far from the requirement of data center network. Data centers employing partition/aggregation...
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