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    <title>Virtio-Net on Head First eBPF</title>
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      <title>XDP 更早掉包不等于更省 CPU：veth &#43;1.7% vs 虚拟驱动 virtio-net 周期约 −28%</title>
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      <pubDate>Mon, 02 Nov 2026 23:05:14 +0800</pubDate>
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      <description>本文地址：https://www.ebpf.top/post/xdp-vs-tc-benchmark 1. 口号与实测：更早掉包，不等于更少干活 2. 测量口径：同一 drop，两种挂点，两种拓扑 3. Run1 · veth：出栈了，周期却贵约 1.7% 4. 机制：veth 在 XDP 之前已经建好 skb 5. Run2 · virtio-net：</description>
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