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Zero-Copy Optimization for DPDK vhost-user Receiving

Zero-Copy Optimization for DPDK vhost-user Receiving

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This tutorial will introduce the solution that offloads the vSwitch function into smart NICs and discuss the data transformation issue between vendor-specific interface and virtio-net. To fix the issue, a light-weight application based on DPDK is introduced to perform simple packet forwarding. To ensure high-performance and low latency, a zero-copy receiving approach is developed. NIC DMA packets received from the network are transmitted into guest memory directly. Th approach re-constructs the memory pool to make the zero-copy process transparent to both NIC and virtio-net drivers without modifying any NIC or virtio-net driver.
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