In general, network cards rely on the CPU to process network application services, which could take up much CPU resources, slowing down performance for other tasks.
However, the emergence of smart network cards improves the performance of application and virtualization and realizes many advantages of software-defined networking (SDN) and network function virtualization (NFV). Removing network virtualization, load balancing, and other low-level functions from the CPU in a server can result in the provision of maximum processing power for applications and improving the efficiency of system and network operations
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