How Intel's open source Data Plane Development Kit enables high-performance Linux networking - TechRepublic: "To utilize processors more efficiently in Linux, developers bypass the Linux kernel and dedicate CPU cores to network processing. The CloudFlare example used Linux kernel tools to pin processes to a set of cores and actively managed memory queues. It took a bit of programming discipline to send unprocessed packets between two systems. Add any packet processing, such as IPS, and the performance should drop significantly.
DPDK bypasses the Linux kernel and manages the NIC and CPU assignment directly. On a single Intel processor, it's possible to achieve throughput of up to 80Mpps or roughly 46Gbps using the smallest Ethernet Frames. I want to make sure I caveat the above comment and note that it was an Intel processor. DPDK is an open source project and currently has both Intel and ARM distributions."
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