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Middleboxes are ubiquitous in today's networks. They perform deep packet processing such as content-based filtering and transformation, which requires multiple categories of resources (e.g., CPU, memory bandwidth, and link bandwidth). Depending on the processing requirement of traffic, packet processing for different flows may consume vastly different amounts of resources. Multi-resource fair queueing...
We investigate the problem of scheduling parallel I/O operations on systems that provide data replication. The objective is to direct each compute node to access data from an I/O node where the data is duplicated, in such a way that requests for data are evenly distributed among I/O nodes. We identify a necessary and sufficient condition on whether the current data request pattern can be improved,...
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