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Would BPF count as "bypassing the kernel" or are you referring to hardware acceleration? e.g. https://blog.cloudflare.com/cloudflare-architecture-and-how-bpf-e

• eloff 7y ago
  BPF is more like moving your compute into the kernel, but it achieves the same effect - you avoid context switch overhead associated with syscalls. Kernel bypass is typically using ring buffers and a poll-mode network driver (e.g. DPDK, snabbswitch) and skipping the whole kernel network stack.