{"id":32330,"date":"2025-03-04T09:57:20","date_gmt":"2025-03-04T01:57:20","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=32330"},"modified":"2025-03-04T09:57:20","modified_gmt":"2025-03-04T01:57:20","slug":"ebpf%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e8%99%9a%e6%8b%9f%e5%8c%96%e7%8e%af%e5%a2%83%e7%9a%84%e6%80%a7%e8%83%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/32330.html","title":{"rendered":"eBPF\u5982\u4f55\u63d0\u5347\u865a\u62df\u5316\u73af\u5883\u7684\u6027\u80fd\uff1f"},"content":{"rendered":"

\n

\"eBPF\u5982\u4f55\u63d0\u5347\u865a\u62df\u5316\u73af\u5883\u7684\u6027\u80fd\uff1f\"<\/p>\n<\/p>\n

\n

\u5728\u4e91\u8ba1\u7b97\u548c\u5bb9\u5668\u5316\u6280\u672f\u5e2d\u5377\u5168\u7403\u7684\u5341\u5e74\u95f4\uff0c\u865a\u62df\u5316\u73af\u5883\u5df2\u6210\u4e3a\u73b0\u4ee3\u57fa\u7840\u8bbe\u65bd\u7684\u57fa\u77f3\u3002\u7136\u800c\uff0c\u968f\u7740\u4e1a\u52a1\u5bf9\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u541e\u5410\u91cf\u7684\u9700\u6c42\u65e5\u76ca\u589e\u957f\uff0c\u4f20\u7edf\u865a\u62df\u5316\u67b6\u6784\u7684\u74f6\u9888\u9010\u6e10\u663e\u73b0\u2014\u2014\u7f51\u7edc\u534f\u8bae\u6808\u7684\u5197\u4f59\u5904\u7406\u3001\u76d1\u63a7\u5de5\u5177\u7684\u4fb5\u5165\u5f0f\u63a2\u9488\u3001\u5b89\u5168\u7b56\u7565\u7684\u5168\u5c40\u76f2\u533a\u7b49\u95ee\u9898\uff0c\u8ba9\u6027\u80fd\u4f18\u5316\u53d8\u5f97\u5982\u540c\u5728\u94a2\u4e1d\u4e0a\u8df3\u821e\u3002\u6b64\u65f6\uff0ceBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09<\/strong>\u51ed\u501f\u5176\u5185\u6838\u7ea7\u53ef\u7f16\u7a0b\u80fd\u529b<\/strong>\u548c\u96f6\u4fb5\u5165\u7279\u6027<\/strong>\uff0c\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u865a\u62df\u5316\u73af\u5883\u7684\u6280\u672f\u8fb9\u754c\u3002\u8fd9\u9879\u8bde\u751f\u4e8eLinux\u5185\u6838\u7684\u6280\u672f\uff0c\u4e0d\u4ec5\u8ba9\u5f00\u53d1\u8005\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u7801\u7684\u60c5\u51b5\u4e0b\u52a8\u6001\u6ce8\u5165\u903b\u8f91\uff0c\u66f4\u901a\u8fc7\u6d88\u9664\u6570\u636e\u590d\u5236<\/strong>\u3001\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u89c2\u6d4b<\/strong>\u3001\u6784\u5efa\u52a8\u6001\u5b89\u5168\u5c4f\u969c<\/strong>\u4e09\u5927\u6838\u5fc3\u8def\u5f84\uff0c\u4e3a\u865a\u62df\u5316\u6027\u80fd\u63d0\u5347\u5f00\u8f9f\u4e86\u65b0\u7684\u53ef\u80fd\u6027\u3002<\/p>\n

\n

\u4e00\u3001\u91cd\u6784\u7f51\u7edc\u534f\u8bae\u6808\uff1a\u4ece\u5197\u4f59\u5230\u96f6\u62f7\u8d1d\u7684\u8fdb\u5316<\/strong><\/h3>\n

\u4f20\u7edf\u865a\u62df\u5316\u7f51\u7edc\u67b6\u6784\u4e2d\uff0c\u6570\u636e\u5305\u9700\u8981\u7a7f\u8d8a\u591a\u5c42\u7f51\u7edc\u6808\u2014\u2014\u4ece\u7269\u7406\u7f51\u5361\u5230\u5bbf\u4e3b\u673a\u5185\u6838\uff0c\u518d\u7ecf\u865a\u62df\u7f51\u5361\u4f20\u9012\u81f3\u865a\u62df\u673a\u6216\u5bb9\u5668\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0c\u591a\u6b21\u4e0a\u4e0b\u6587\u5207\u6362<\/strong>\u548c\u5185\u5b58\u62f7\u8d1d<\/strong>\u6d88\u8017\u4e86\u9ad8\u8fbe30%\u7684CPU\u8d44\u6e90\u3002\u800ceBPF<\/a>\u901a\u8fc7XDP\uff08eXpress Data Path\uff09\u548cTC\uff08Traffic Control\uff09\u5b50\u7cfb\u7edf\uff0c\u76f4\u63a5\u5728\u7f51\u5361\u9a71\u52a8\u5c42\u6216\u534f\u8bae\u6808\u5165\u53e3\u5904\u62e6\u622a\u6d41\u91cf\uff0c\u5b9e\u73b0\u65c1\u8def\u5904\u7406\uff08Bypass\uff09<\/strong>\u3002<\/p>\n

\u5728KVM\u865a\u62df\u5316\u573a\u666f\u4e2d\uff0ceBPF\u7a0b\u5e8f\u53ef\u5c06\u865a\u62df\u673a\u95f4\u7684\u901a\u4fe1\u6d41\u91cf\u76f4\u63a5\u4ece\u6e90vNIC\u91cd\u5b9a\u5411\u5230\u76ee\u6807vNIC<\/strong>\uff0c\u8df3\u8fc7\u4e86\u5bbf\u4e3b\u673a\u5185\u6838\u7684iptables\u3001\u8def\u7531\u8868\u7b49\u4f20\u7edf\u5904\u7406\u8def\u5f84\u3002Cloudflare\u7684\u5b9e\u8df5\u6570\u636e\u663e\u793a\uff0c\u8fd9\u79cd\u65b9\u6848\u5c06\u7f51\u7edc\u5ef6\u8fdf\u4ece\u6beb\u79d2\u7ea7\u964d\u81f3\u5fae\u79d2\u7ea7\uff0c\u540c\u65f6\u964d\u4f4e40%\u7684CPU\u5360\u7528\u3002\u66f4\u6fc0\u8fdb\u7684\u5e94\u7528\u5982Cilium\u9879\u76ee\uff0c\u901a\u8fc7eBPF\u66ff\u4ee3kube-proxy<\/strong>\uff0c\u5728Kubernetes\u96c6\u7fa4\u4e2d\u5b9e\u73b0\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff0c\u907f\u514d\u4e86iptables\u89c4\u5219\u7206\u70b8\u5e26\u6765\u7684\u6027\u80fd\u8870\u51cf\u3002<\/p>\n

\n

\u4e8c\u3001\u89c2\u6d4b\u80fd\u529b\u9769\u547d\uff1a\u4ece\u9ed1\u76d2\u5230\u900f\u660e\u5316\u7684\u8de8\u8d8a<\/strong><\/h3>\n

\u865a\u62df\u5316\u73af\u5883\u7684\u590d\u6742\u6027\u4f7f\u5f97\u4f20\u7edf\u7684\u6027\u80fd\u76d1\u63a7\u5de5\u5177\uff08\u5982sar\u3001top\uff09\u96be\u4ee5\u6355\u6349\u7ec6\u7c92\u5ea6\u7684\u5f02\u5e38\u3002\u5f53\u591a\u4e2a\u865a\u62df\u673a\u5171\u4eab\u7269\u7406\u8d44\u6e90\u65f6\uff0c\u8d44\u6e90\u4e89\u7528\uff08Noisy Neighbor\uff09<\/strong>\u95ee\u9898\u5f80\u5f80\u9700\u8981\u6570\u5c0f\u65f6\u624d\u80fd\u5b9a\u4f4d\u3002eBPF\u901a\u8fc7\u4e24\u7c7b\u6838\u5fc3\u80fd\u529b\u7834\u89e3\u8fd9\u4e00\u56f0\u5c40\uff1a<\/p>\n

    \n
  1. \n

    \u52a8\u6001\u8ffd\u8e2a\uff08Dynamic Tracing\uff09<\/strong>
    \neBPF\u7a0b\u5e8f\u53ef\u4ee5\u6302\u94a9\u5230\u5185\u6838\u51fd\u6570\u3001\u7528\u6237\u6001\u51fd\u6570\u751a\u81f3\u786c\u4ef6\u4e8b\u4ef6\uff0c\u5b9e\u65f6\u6355\u83b7\u865a\u62df\u5316\u5c42\u7684\u8c03\u5ea6\u5ef6\u8fdf\u3001\u5185\u5b58\u5206\u914d\u3001\u78c1\u76d8I\/O\u7b49\u6307\u6807\u3002\u4f8b\u5982\uff0c\u5229\u7528kprobe<\/code>\u8ffd\u8e2aKVM\u7684kvm_exit<\/code>\u4e8b\u4ef6\uff0c\u80fd\u7cbe\u786e\u7edf\u8ba1\u865a\u62df\u673a\u9000\u51fa\u5230\u5bbf\u4e3b\u673a\u6a21\u5f0f\u7684\u9891\u7387\u548c\u539f\u56e0\uff0c\u5feb\u901f\u8bc6\u522b\u56e0\u9891\u7e41I\/O\u5bfc\u81f4\u7684\u6027\u80fd\u6296\u52a8\u3002<\/p>\n<\/li>\n

  2. \n

    \u706b\u7130\u56fe\u751f\u6210\uff08Flame Graph\uff09<\/strong>
    \nBPF\u5de5\u5177\u94fe\uff08\u5982BCC\u3001bpftrace\uff09\u80fd\u81ea\u52a8\u805a\u5408\u8c03\u7528\u6808\u4fe1\u606f\uff0c\u751f\u6210\u8de8\u865a\u62df\u673a\u3001\u5bb9\u5668\u548c\u5bbf\u4e3b\u7684\u7edf\u4e00\u706b\u7130\u56fe<\/strong>\u3002Meta\u516c\u53f8\u7684\u6848\u4f8b\u5206\u6790\u663e\u793a\uff0c\u8fd9\u79cd\u5168\u6808\u53ef\u89c6\u5316\u7684\u65b9\u5f0f\u5c06\u6545\u969c\u5e73\u5747\u5b9a\u4f4d\u65f6\u95f4\uff08MTTR\uff09\u4ece2\u5c0f\u65f6\u7f29\u77ed\u81f315\u5206\u949f\u3002<\/p>\n<\/li>\n<\/ol>\n

    \n

    \u4e09\u3001\u5b89\u5168\u4e0e\u6027\u80fd\u7684\u5171\u751f\uff1a\u4ece\u9759\u6001\u89c4\u5219\u5230\u52a8\u6001\u8fc7\u6ee4<\/strong><\/h3>\n

    \u5b89\u5168\u7b56\u7565\u7684\u5b9e\u65bd\u5f80\u5f80\u4ee5\u727a\u7272\u6027\u80fd\u4e3a\u4ee3\u4ef7\u3002\u4f20\u7edf\u865a\u62df\u5316\u9632\u706b\u5899\uff08\u5982iptables\uff09\u9700\u8981\u904d\u5386\u6570\u5343\u6761\u89c4\u5219\uff0c\u800c\u57fa\u4e8eeBPF\u7684\u89e3\u51b3\u65b9\u6848\u5982Tetragon<\/strong>\uff0c\u901a\u8fc7\u4ee5\u4e0b\u673a\u5236\u5b9e\u73b0\u6027\u80fd\u4e0e\u5b89\u5168\u7684\u53cc\u8d62\uff1a<\/p>\n

      \n
    • \u5373\u65f6\u7f16\u8bd1\uff08JIT\uff09<\/strong>\uff1a\u5c06\u8fc7\u6ee4\u89c4\u5219\u7f16\u8bd1\u4e3a\u673a\u5668\u7801\uff0c\u907f\u514d\u89e3\u91ca\u6267\u884c\u7684\u6027\u80fd\u635f\u8017\n<\/li>\n
    • \u7b56\u7565\u52a8\u6001\u52a0\u8f7d<\/strong>\uff1a\u65e0\u9700\u91cd\u542f\u670d\u52a1\u5373\u53ef\u66f4\u65b0\u5b89\u5168\u89c4\u5219\uff0c\u6d88\u9664\u7ef4\u62a4\u7a97\u53e3\u7684\u505c\u673a\u6210\u672c\n<\/li>\n
    • \u4e0a\u4e0b\u6587\u611f\u77e5<\/strong>\uff1a\u7ed3\u5408\u8fdb\u7a0b\u6811\u3001\u5bb9\u5668\u6807\u7b7e\u3001\u7f51\u7edc\u4e94\u5143\u7ec4\u7b49\u591a\u7ef4\u4fe1\u606f\uff0c\u5b9e\u73b0\u7cbe\u51c6\u62e6\u622a\n<\/li>\n<\/ul>\n

      \u5728\u67d0\u91d1\u878d\u4e91\u5e73\u53f0\u7684\u5b9e\u6d4b\u4e2d\uff0ceBPF\u9632\u706b\u5899\u7684\u541e\u5410\u91cf\u8fbe\u5230iptables\u76846\u500d\uff0c\u540c\u65f6\u5c06\u8bef\u62a5\u7387\u4ece5%\u964d\u81f30.3%\u3002\u66f4\u503c\u5f97\u5173\u6ce8\u7684\u662f\uff0ceBPF\u652f\u6301\u5b89\u5168\u7b56\u7565\u7684\u5dee\u5f02\u5316\u914d\u7f6e<\/strong>\u2014\u2014\u4f8b\u5982\u4e3a\u5173\u952e\u4e1a\u52a1\u865a\u62df\u673a\u542f\u7528\u6df1\u5ea6\u5305\u68c0\u6d4b\uff08DPI\uff09\uff0c\u800c\u5bf9\u4f4e\u98ce\u9669\u73af\u5883\u4ec5\u505a\u57fa\u7840\u8fc7\u6ee4\uff0c\u8fd9\u79cd\u7075\u6d3b\u6027\u662f\u4f20\u7edf\u65b9\u6848\u96be\u4ee5\u4f01\u53ca\u7684\u3002<\/p>\n

      \n

      \u56db\u3001\u5bb9\u5668\u5316\u4e0e\u865a\u62df\u5316\u7684\u534f\u540c\uff1a\u6253\u7834\u8d44\u6e90\u9694\u79bb\u7684\u6b21\u5143\u58c1<\/strong><\/h3>\n

      \u867d\u7136\u5bb9\u5668\u4e0e\u865a\u62df\u673a\u5728\u9694\u79bb\u6027\u4e0a\u5b58\u5728\u5dee\u5f02\uff0c\u4f46\u6df7\u5408\u90e8\u7f72\u5df2\u6210\u5e38\u6001\u3002eBPF\u7684\u72ec\u7279\u4ef7\u503c\u5728\u4e8e\u8de8\u5c42\u7ea7\u8d44\u6e90\u8c03\u5ea6<\/strong>\uff1a<\/p>\n

        \n
      • cgroup v2\u96c6\u6210<\/strong>\uff1a\u901a\u8fc7\u6302\u94a9cgroup\u7684\u8bfb\u5199\u4e8b\u4ef6\uff0c\u52a8\u6001\u8c03\u6574\u865a\u62df\u673a\u4e0e\u5bb9\u5668\u7684CPU\u914d\u989d\n<\/li>\n
      • RDMA\u52a0\u901f<\/strong>\uff1a\u5728\u652f\u6301SR-IOV\u7684\u7f51\u5361\u4e0a\uff0ceBPF\u7a0b\u5e8f\u53ef\u76f4\u63a5\u5c06\u865a\u62df\u673a\u7684RDMA\u961f\u5217\u6620\u5c04\u5230\u5bb9\u5668\u8fdb\u7a0b\n<\/li>\n
      • \u6df7\u5408\u5b58\u50a8\u6c60\u7ba1\u7406<\/strong>\uff1a\u5229\u7528BPF\u6620\u5c04\uff08BPF Map\uff09\u8ddf\u8e2a\u5757\u8bbe\u5907\u7684I\/O\u6a21\u5f0f\uff0c\u4e3a\u865a\u62df\u673a\u548c\u5bb9\u5668\u667a\u80fd\u5206\u914d\u672c\u5730NVMe\u4e0e\u5206\u5e03\u5f0f\u5b58\u50a8\n<\/li>\n<\/ul>\n

        \u963f\u91cc\u4e91\u7684\u6d4b\u8bd5\u8868\u660e\uff0c\u8fd9\u79cd\u534f\u540c\u7b56\u7565\u8ba9\u6df7\u5408\u8d1f\u8f7d\u7684\u8d44\u6e90\u5229\u7528\u7387\u63d0\u5347\u4e8622%\uff0c\u540c\u65f6\u4fdd\u8bc1\u5173\u952e\u865a\u62df\u673a\u7684\u5c3e\u5ef6\u8fdf\uff08Tail Latency\uff09\u7a33\u5b9a\u5728SLA\u8303\u56f4\u5185\u3002<\/p>\n

        \n

        \u4e94\u3001\u8de8\u73af\u5883\u6d41\u91cf\u6cbb\u7406\uff1a\u4ece\u788e\u7247\u5316\u5230\u7edf\u4e00\u63a7\u5236\u5e73\u9762<\/strong><\/h3>\n

        \u5728\u6df7\u5408\u4e91\u67b6\u6784\u4e2d\uff0c\u865a\u62df\u673a\u53ef\u80fd\u5206\u5e03\u5728\u672c\u5730\u6570\u636e\u4e2d\u5fc3\u548c\u591a\u4e2a\u516c\u6709\u4e91\u4e4b\u95f4\u3002eBPF\u7684\u8de8\u5e73\u53f0\u7279\u6027\uff08Linux\u5185\u6838\u7248\u672c\u22654.1\u652f\u6301\uff09\u4f7f\u5176\u6210\u4e3a\u7406\u60f3\u7684\u6d41\u91cf\u6cbb\u7406\u5de5\u5177\uff1a<\/p>\n

          \n
        • \u52a0\u5bc6\u6d41\u91cf\u5206\u6790<\/strong>\uff1a\u501f\u52a9eBPF\u7684TLS\/SSL\u89e3\u6790\u5e93\uff0c\u65e0\u9700\u89e3\u5bc6\u5373\u53ef\u76d1\u63a7\u8de8\u865a\u62df\u673a\u7684\u52a0\u5bc6\u6d41\u91cf\u5143\u6570\u636e\n<\/li>\n
        • \u5168\u5c40\u8d1f\u8f7d\u5747\u8861<\/strong>\uff1a\u901a\u8fc7BPF Map\u540c\u6b65\u5404\u8282\u70b9\u7684\u670d\u52a1\u5065\u5eb7\u72b6\u6001\uff0c\u5b9e\u73b0\u8de8\u4e91\u6d41\u91cf\u8c03\u5ea6\n<\/li>\n
        • \u5e26\u5bbd\u5206\u7ea7\u4fdd\u969c<\/strong>\uff1a\u5bf9\u91d1\u878d\u4ea4\u6613\u7c7b\u865a\u62df\u673a\u5b9e\u65bd\u786c\u6027\u5e26\u5bbd\u9884\u7559\uff0c\u5bf9\u5f00\u53d1\u6d4b\u8bd5\u73af\u5883\u91c7\u7528\u5f39\u6027\u9650\u6d41\n<\/li>\n<\/ul>\n

          \u5fae\u8f6fAzure\u7684SDN\u56e2\u961f\u66fe\u516c\u5f00\u5206\u4eab\uff0c\u57fa\u4e8eeBPF\u7684\u6d41\u91cf\u63a7\u5236\u65b9\u6848\u5c06\u8de8\u5730\u57df\u865a\u62df\u673a\u7684TCP\u91cd\u4f20\u7387\u964d\u4f4e\u4e8658%\uff0c\u540c\u65f6\u51cf\u5c11\u4e86\u4e13\u7ebf\u5e26\u5bbd\u7684\u91c7\u8d2d\u6210\u672c\u3002<\/p>\n

          \n

          \u968f\u7740eBPF\u751f\u6001\u7684\u7206\u53d1\u5f0f\u589e\u957f\u2014\u2014\u4eceLinux\u5185\u6838\u5230Windows eBPF for Windows\u7684\u8de8\u754c\u652f\u6301\uff0c\u4ece\u89c2\u6d4b\u5de5\u5177Kindling\u5230\u5b89\u5168\u5f15\u64ceFalco\u7684\u6df1\u5ea6\u6574\u5408\u2014\u2014\u8fd9\u9879\u6280\u672f\u6b63\u5728\u91cd\u5851\u865a\u62df\u5316\u6027\u80fd\u4f18\u5316\u7684\u65b9\u6cd5\u8bba\u3002\u5b83\u4e0d\u4ec5\u89e3\u51b3\u4e86\u4f20\u7edf\u65b9\u6848\u201c\u89c2\u6d4b\u3001\u5b89\u5168\u3001\u7f51\u7edc\u4e0d\u53ef\u517c\u5f97\u201d\u7684\u4e09\u89d2\u56f0\u5883\uff0c\u66f4\u901a\u8fc7\u7a0b\u5e8f\u5316\u5185\u6838\u63a5\u53e3<\/strong>\u6253\u5f00\u4e86\u6301\u7eed\u521b\u65b0\u7684\u901a\u9053\u3002\u5f53\u865a\u62df\u5316\u73af\u5883\u8fc8\u5165100Gbps\u7f51\u7edc\u4e0e\u03bcs\u7ea7\u5ef6\u8fdf\u7684\u65f6\u4ee3\uff0ceBPF\u6216\u8bb8\u6b63\u662f\u90a3\u628a\u89e3\u5f00\u6027\u80fd\u67b7\u9501\u7684\u94a5\u5319\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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\u5728KVM\u865a\u62df\u5316\u573a\u666f\u4e2d\uff0ceBPF\u7a0b\u5e8f\u53ef\u5c06\u865a\u62df\u673a\u95f4\u7684\u901a\u4fe1\u6d41\u91cf\u76f4\u63a5\u4ece\u6e90vNIC\u91cd\u5b9a\u5411\u5230\u76ee\u6807vNIC\uff0c\u8df3\u8fc7\u4e86\u5bbf\u4e3b\u673a\u5185\u6838\u7684iptables\u3001\u8def\u7531\u8868\u7b49\u4f20\u7edf\u5904\u7406\u8def\u5f84\u3002Cloudflare\u7684\u5b9e\u8df5\u6570\u636e\u663e\u793a\uff0c\u8fd9\u79cd\u65b9\u6848\u5c06\u7f51\u7edc\u5ef6\u8fdf\u4ece\u6beb\u79d2\u7ea7\u964d\u81f3\u5fae\u79d2\u7ea7\uff0c\u540c\u65f6\u964d\u4f4e40%\u7684CPU\u5360\u7528\u3002\u66f4\u6fc0\u8fdb\u7684\u5e94\u7528\u5982Cilium\u9879\u76ee\uff0c\u901a\u8fc7eBPF\u66ff\u4ee3kube-proxy\uff0c\u5728Kubernetes\u96c6\u7fa4\u4e2d\u5b9e\u73b0\u670d\u52a1\u53d1\u73b0\u548c\u8d1f\u8f7d\u5747\u8861\uff0c\u907f\u514d\u4e86iptables\u89c4\u5219\u7206\u70b8\u5e26\u6765\u7684\u6027\u80fd\u8870\u51cf\u3002 \u4e8c\u3001\u89c2\u6d4b\u80fd\u529b\u9769\u547d\uff1a\u4ece\u9ed1\u76d2\u5230\u900f\u660e\u5316\u7684\u8de8\u8d8a 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BPF\u5de5\u5177\u94fe\uff08\u5982BCC\u3001bpftrace\uff09\u80fd\u81ea\u52a8\u805a\u5408\u8c03\u7528\u6808\u4fe1\u606f\uff0c\u751f\u6210\u8de8\u865a\u62df\u673a\u3001\u5bb9\u5668\u548c\u5bbf\u4e3b\u7684\u7edf\u4e00\u706b\u7130\u56fe\u3002Meta\u516c\u53f8\u7684\u6848\u4f8b\u5206\u6790\u663e\u793a\uff0c\u8fd9\u79cd\u5168\u6808\u53ef\u89c6\u5316\u7684\u65b9\u5f0f\u5c06\u6545\u969c\u5e73\u5747\u5b9a\u4f4d\u65f6\u95f4\uff08MTTR\uff09\u4ece2\u5c0f\u65f6\u7f29\u77ed\u81f315\u5206\u949f\u3002 \u4e09\u3001\u5b89\u5168\u4e0e\u6027\u80fd\u7684\u5171\u751f\uff1a\u4ece\u9759\u6001\u89c4\u5219\u5230\u52a8\u6001\u8fc7\u6ee4 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\u56db\u3001\u5bb9\u5668\u5316\u4e0e\u865a\u62df\u5316\u7684\u534f\u540c\uff1a\u6253\u7834\u8d44\u6e90\u9694\u79bb\u7684\u6b21\u5143\u58c1 \u867d\u7136\u5bb9\u5668\u4e0e\u865a\u62df\u673a\u5728\u9694\u79bb\u6027\u4e0a\u5b58\u5728\u5dee\u5f02\uff0c\u4f46\u6df7\u5408\u90e8\u7f72\u5df2\u6210\u5e38\u6001\u3002eBPF\u7684\u72ec\u7279\u4ef7\u503c\u5728\u4e8e\u8de8\u5c42\u7ea7\u8d44\u6e90\u8c03\u5ea6\uff1a cgroup v2\u96c6\u6210\uff1a\u901a\u8fc7\u6302\u94a9cgroup\u7684\u8bfb\u5199\u4e8b\u4ef6\uff0c\u52a8\u6001\u8c03\u6574\u865a\u62df\u673a\u4e0e\u5bb9\u5668\u7684CPU\u914d\u989d RDMA\u52a0\u901f\uff1a\u5728\u652f\u6301SR-IOV\u7684\u7f51\u5361\u4e0a\uff0ceBPF\u7a0b\u5e8f\u53ef\u76f4\u63a5\u5c06\u865a\u62df\u673a\u7684RDMA\u961f\u5217\u6620\u5c04\u5230\u5bb9\u5668\u8fdb\u7a0b \u6df7\u5408\u5b58\u50a8\u6c60\u7ba1\u7406\uff1a\u5229\u7528BPF\u6620\u5c04\uff08BPF 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