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Creators/Authors contains: "Zhao, Zhipeng"

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  1. ; ; ; ; ; ; ; (, HotOS '21: Proceedings of the Workshop on Hot Topics in Operating Systems)
    null (Ed.)
    Kernel-bypass network APIs, which allow applications to circumvent the kernel and interface directly with the NIC hardware, have recently emerged as one of the main tools for improving application network performance. However, allowing applications to circumvent the kernel makes it impossible to use tools (e.g., tcpdump) or impose policies (e.g., QoS and filters) that need to consider traffic sent by different applications running on a host. This makes maintainability and manageability a challenge for kernel-bypass applications. In response we propose Kernel On-Path Interposition (KOPI), in which traditional kernel dataplane functionality is retained but implemented in a fully programmable SmartNIC. We hypothesize that KOPI can support the same tools and policies as the kernel stack while retaining the performance benefits of kernel bypass. 
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