{"id":35185,"date":"2025-03-19T09:20:40","date_gmt":"2025-03-19T01:20:40","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=35185"},"modified":"2025-03-19T09:20:40","modified_gmt":"2025-03-19T01:20:40","slug":"ebpf%e5%9c%a8devops%e6%b5%81%e7%a8%8b%e4%b8%ad%e7%9a%84%e5%85%b7%e4%bd%93%e5%ba%94%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/35185.html","title":{"rendered":"eBPF\u5728DevOps\u6d41\u7a0b\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\n

\"eBPF\u5728DevOps\u6d41\u7a0b\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u662f\u4ec0\u4e48\uff1f\"<\/p>\n<\/p>\n

\u5728\u4e91\u539f\u751f\u4e0e\u5fae\u670d\u52a1\u67b6\u6784\u5e2d\u5377\u5168\u7403\u7684\u4eca\u5929\uff0c\u8fd0\u7ef4\u5de5\u7a0b\u5e08\u7684\u76d1\u63a7\u4eea\u8868\u76d8\u4e0a\u8df3\u52a8\u7740\u6570\u4ee5\u4e07\u8ba1\u7684\u6307\u6807\uff0c\u5f00\u53d1\u4eba\u5458\u7684\u4ee3\u7801\u4ed3\u5e93\u6bcf\u5c0f\u65f6\u90fd\u5728\u4ea7\u751f\u65b0\u7684\u63d0\u4ea4\u3002\u5f53\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\u96be\u4ee5\u7a7f\u900f\u5bb9\u5668\u5316\u7684\u8ff7\u96fe\uff0c\u5f53\u7f51\u7edc\u6545\u969c\u6392\u67e5\u53d8\u6210\u5927\u6d77\u635e\u9488\uff0c\u4e00\u9879\u8d77\u6e90\u4e8eLinux\u5185\u6838\u7684\u9769\u547d\u6027\u6280\u672f\u2014\u2014eBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09<\/strong>\uff0c\u6b63\u5728DevOps\u9886\u57df\u6380\u8d77\u4e00\u573a\u9759\u9ed8\u5374\u6df1\u523b\u7684\u89c2\u6d4b\u9769\u547d\u3002\u5b83\u4e0d\u4ec5\u91cd\u65b0\u5b9a\u4e49\u4e86\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u7684\u8fb9\u754c\uff0c\u66f4\u5c06\u8fd0\u7ef4\u54cd\u5e94\u901f\u5ea6\u63a8\u8fdb\u5230\u6beb\u79d2\u7ea7\u65f6\u4ee3\uff0c\u8ba9\u539f\u672c\u5272\u88c2\u7684\u5f00\u53d1\u4e0e\u8fd0\u7ef4\u771f\u6b63\u5b9e\u73b0\u4e86”\u4ee3\u7801\u5373\u76d1\u63a7”\u7684\u6df1\u5ea6\u878d\u5408\u3002<\/p>\n

\n

\u4e00\u3001\u4ece\u5185\u6838\u89c6\u89d2\u91cd\u6784\u53ef\u89c2\u6d4b\u6027\u4f53\u7cfb<\/h3>\n

\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\u5982Prometheus<\/a>\u3001Zabbix\u4f9d\u8d56\u7528\u6237\u6001\u4ee3\u7406\u91c7\u96c6\u6570\u636e\uff0c\u8fd9\u79cd\u67b6\u6784\u5728\u5bb9\u5668\u5316\u73af\u5883\u4e2d\u66b4\u9732\u51fa\u660e\u663e\u77ed\u677f\uff1a\u6bcf\u4e2a\u5bb9\u5668\u90fd\u9700\u8981\u90e8\u7f72\u4ee3\u7406\u7a0b\u5e8f\uff0c\u8d44\u6e90\u6d88\u8017\u5448\u6307\u6570\u7ea7\u589e\u957f\uff1b\u7f51\u7edc\u534f\u8bae\u6808\u7684\u5c42\u5c42\u62bd\u8c61\u5bfc\u81f4\u5173\u952e\u6307\u6807\u5931\u771f\uff1b\u7a81\u53d1\u6027\u6545\u969c\u53d1\u751f\u65f6\uff0c\u5386\u53f2\u6570\u636e\u56de\u6eaf\u5f80\u5f80\u9519\u5931\u5173\u952e\u73b0\u573a\u3002<\/p>\n

eBPF<\/a>\u901a\u8fc7\u5728\u5185\u6838\u5c42\u690d\u5165\u8f7b\u91cf\u7ea7\u7a0b\u5e8f<\/strong>\uff0c\u5b9e\u73b0\u4e86\u5bf9\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u6d41\u91cf\u3001\u51fd\u6570\u8c03\u7528\u7b49\u6838\u5fc3\u884c\u4e3a\u7684\u5b9e\u65f6\u89c2\u6d4b\u3002\u5728Kubernetes\u96c6\u7fa4\u4e2d\uff0c\u5de5\u7a0b\u5e08\u53ef\u4ee5\u7f16\u5199eBPF\u7a0b\u5e8f\u76f4\u63a5\u6355\u83b7Pod\u4e4b\u95f4\u7684TCP\u91cd\u4f20\u7387\uff0c\u7cbe\u786e\u5230\u5355\u4e2asocket\u8fde\u63a5\u7ea7\u522b\u7684\u65f6\u5ef6\u5206\u6790\uff0c\u8fd9\u79cd\u539f\u5b50\u7ea7\u7684\u89c2\u6d4b\u80fd\u529b\u4f7f\u5f97”\u670d\u52a1\u7f51\u683c\u5ef6\u8fdf\u7a81\u589e30ms”\u8fd9\u7c7b\u8fc7\u53bb\u9700\u8981\u6570\u5c0f\u65f6\u6392\u67e5\u7684\u95ee\u9898\uff0c\u73b0\u5728\u901a\u8fc7\u81ea\u52a8\u751f\u6210\u7684\u706b\u7130\u56fe\u5c31\u80fd\u5feb\u901f\u5b9a\u4f4d\u5f02\u5e38\u51fd\u6570\u3002<\/p>\n

\u67d0\u5934\u90e8\u7535\u5546\u5e73\u53f0\u7684\u6848\u4f8b\u9887\u5177\u4ee3\u8868\u6027\uff1a\u4ed6\u4eec\u5728Service Mesh\u67b6\u6784\u4e2d\u90e8\u7f72eBPF\u63a2\u9488\u540e\uff0cAPI\u7f51\u5173\u7684\u5f02\u5e38\u68c0\u6d4b\u54cd\u5e94\u65f6\u95f4\u4ece15\u5206\u949f\u7f29\u77ed\u81f38\u79d2\uff0c\u5185\u5b58\u5f00\u9500\u964d\u4f4e72%\uff0c\u76f4\u63a5\u907f\u514d\u4e86\u9ed1\u8272\u661f\u671f\u4e94\u671f\u95f4\u7684\u4ef7\u503c\u6570\u767e\u4e07\u7f8e\u5143\u635f\u5931\u3002<\/p>\n

\n

\u4e8c\u3001\u7f51\u7edc\u6027\u80fd\u4f18\u5316\u7684\u624b\u672f\u5200<\/h3>\n

\u5728\u5fae\u670d\u52a1\u67b6\u6784\u4e2d\uff0c\u7f51\u7edc\u5ef6\u8fdf\u5bf9\u7cfb\u7edf\u6574\u4f53\u6027\u80fd\u7684\u5f71\u54cd\u6743\u91cd\u5df2\u8d85\u8fc740%\u3002\u4f20\u7edftcpdump\u6293\u5305\u5206\u6790\u9700\u8981\u5168\u91cf\u62f7\u8d1d\u6570\u636e\u5305\uff0c\u572810Gbps\u7f51\u7edc\u73af\u5883\u4e0b\u4f1a\u4ea7\u751f\u8d85\u8fc730%\u7684\u6027\u80fd\u635f\u8017\u3002\u800ceBPF\u7684XDP\uff08Express Data Path\uff09\u6280\u672f\u80fd\u591f\u5728\u7f51\u5361\u9a71\u52a8\u5c42\u76f4\u63a5\u5904\u7406\u6570\u636e\u5305<\/strong>\uff0c\u5b9e\u73b0\u96f6\u62f7\u8d1d\u8fc7\u6ee4\u4e0e\u8f6c\u53d1\u3002<\/p>\n

\u67d0\u89c6\u9891\u6d41\u5a92\u4f53\u5e73\u53f0\u7684\u5b9e\u8df5\u9a8c\u8bc1\u4e86\u5176\u4ef7\u503c\uff1a\u901a\u8fc7eBPF\u91cd\u5199\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\uff0c\u5c06\u89c6\u9891\u4f20\u8f93\u7684TCP\u63e1\u624b\u65f6\u5ef6\u4ece230ms\u538b\u7f29\u523080ms\uff0cQPS\u5cf0\u503c\u63d0\u53473.2\u500d\u3002\u66f4\u5173\u952e\u7684\u662f\uff0c\u8fd9\u4e9b\u4f18\u5316\u5b8c\u5168\u901a\u8fc7\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u52a8\u6001\u52a0\u8f7d\uff0c\u65e0\u9700\u91cd\u542f\u4efb\u4f55\u670d\u52a1\u8282\u70b9\uff0c\u5b8c\u7f8e\u5951\u5408DevOps\u8981\u6c42\u7684\u6301\u7eed\u4ea4\u4ed8\u7406\u5ff5\u3002<\/p>\n

\u5728Istio\u670d\u52a1\u7f51\u683c\u4e2d\uff0c\u5de5\u7a0b\u5e08\u6b63\u5229\u7528eBPF\u7ed5\u8fc7\u4f20\u7edf\u7684iptables\u89c4\u5219\u94fe\uff0c\u76f4\u63a5\u5c06\u7f51\u7edc\u7b56\u7565\u7f16\u8bd1\u6210BPF\u5b57\u8282\u7801\u6ce8\u5165\u5185\u6838\u3002\u8fd9\u79cd\u65b9\u6848\u5c06\u7b56\u7565\u6267\u884c\u65f6\u5ef6\u4ece\u6beb\u79d2\u7ea7\u964d\u81f3\u5fae\u79d2\u7ea7\uff0c\u540c\u65f6\u5c06CPU\u5229\u7528\u7387\u964d\u4f4e45%\uff0c\u4e3a5G\u65f6\u4ee3\u7684\u8d85\u4f4e\u5ef6\u8fdf\u901a\u4fe1\u94fa\u5e73\u4e86\u9053\u8def\u3002<\/p>\n

\n

\u4e09\u3001\u5b89\u5168\u9632\u62a4\u7684\u5b9e\u65f6\u514d\u75ab\u7cfb\u7edf<\/h3>\n

\u4f20\u7edf\u5b89\u5168\u9632\u62a4\u5b58\u5728\u81f4\u547d\u7684\u65f6\u95f4\u5dee\uff1a\u6f0f\u6d1e\u626b\u63cf\u5de5\u5177\u6309\u5468\u671f\u8fd0\u884c\uff0cWAF\u89c4\u5219\u66f4\u65b0\u9700\u8981\u4eba\u5de5\u4ecb\u5165\uff0c\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u7684\u8bef\u62a5\u7387\u5e38\u8d85\u8fc730%\u3002eBPF\u7684\u5b89\u5168\u76d1\u63a7\u65b9\u6848\u5b9e\u73b0\u4e86\u4ece”\u4e8b\u540e\u53d6\u8bc1”\u5230”\u5b9e\u65f6\u963b\u65ad”\u7684\u8de8\u8d8a<\/strong>\u3002<\/p>\n

\u901a\u8fc7\u5728\u5185\u6838\u5173\u952e\u8def\u5f84\u63d2\u5165\u63a2\u9488\uff0c\u53ef\u4ee5\u5b9e\u65f6\u6355\u83b7\u53ef\u7591\u7684fork()\u8c03\u7528\u94fe\u3001\u5f02\u5e38\u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\uff0c\u751a\u81f3\u68c0\u6d4b\u5230\u57fa\u4e8eeBPF\u81ea\u8eab\u6f0f\u6d1e\u7684\u653b\u51fb\u884c\u4e3a\u3002\u5728\u5bb9\u5668\u9003\u9038\u9632\u62a4\u573a\u666f\u4e2d\uff0ceBPF\u7a0b\u5e8f\u80fd\u591f\u4ee5\u4f4e\u4e8e1ms\u7684\u5ef6\u8fdf\u963b\u65ad\u975e\u5e38\u89c4\u7684mount\u7cfb\u7edf\u8c03\u7528\uff0c\u8fd9\u79cd\u7c92\u5ea6\u7684\u9632\u62a4\u662f\u4f20\u7edfseccomp\u65e0\u6cd5\u4f01\u53ca\u7684\u3002<\/p>\n

\u67d0\u91d1\u878d\u79d1\u6280\u516c\u53f8\u7684\u7ea2\u84dd\u5bf9\u6297\u6d4b\u8bd5\u663e\u793a\uff1a\u90e8\u7f72eBPF\u8fd0\u884c\u65f6\u9632\u62a4\u540e\uff0c\u6f0f\u6d1e\u5229\u7528\u5c1d\u8bd5\u7684\u963b\u65ad\u6210\u529f\u7387\u8fbe\u523099.7%\uff0c\u8bef\u62a5\u7387\u4ec50.03%\uff0c\u5b89\u5168\u56e2\u961f\u7684\u5e94\u6025\u54cd\u5e94\u5de5\u5355\u91cf\u4e0b\u964d89%\u3002\u66f4\u503c\u5f97\u5173\u6ce8\u7684\u662f\uff0c\u8fd9\u4e9b\u5b89\u5168\u89c4\u5219\u4e0eCI\/CD\u7ba1\u9053\u6df1\u5ea6\u96c6\u6210\uff0c\u5f00\u53d1\u4eba\u5458\u5728\u4ee3\u7801\u63d0\u4ea4\u9636\u6bb5\u5c31\u80fd\u83b7\u5f97\u6f5c\u5728\u98ce\u9669\u9884\u8b66\u3002<\/p>\n

\n

\u56db\u3001\u6301\u7eed\u4ea4\u4ed8\u7684\u95ed\u73af\u9a8c\u8bc1<\/h3>\n

\u5728DevOps\u7684\u6301\u7eed\u90e8\u7f72\u6d41\u6c34\u7ebf\u4e2d\uff0c\u6700\u8106\u5f31\u7684\u73af\u8282\u5f80\u5f80\u51fa\u73b0\u5728\u751f\u4ea7\u73af\u5883\u9a8c\u8bc1\u9636\u6bb5\u3002\u6df7\u6c8c\u5de5\u7a0b\u867d\u7136\u80fd\u6a21\u62df\u90e8\u5206\u6545\u969c\u573a\u666f\uff0c\u4f46\u96be\u4ee5\u8986\u76d6\u771f\u5b9e\u6d41\u91cf\u7684\u957f\u5c3e\u6548\u5e94\u3002eBPF\u9a71\u52a8\u7684\u52a8\u6001\u63d2\u6869\u6280\u672f<\/strong>\uff0c\u4e3a\u8fd9\u4e2a\u95ee\u9898\u63d0\u4f9b\u4e86\u521b\u65b0\u89e3\u6cd5\u3002<\/p>\n

\u901a\u8fc7\u5728\u751f\u4ea7\u73af\u5883\u52a8\u6001\u6ce8\u5165\u8f7b\u91cf\u7ea7\u8ffd\u8e2a\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u9a8c\u8bc1\u65b0\u7248\u672c\u670d\u52a1\u7684\u4e0a\u4e0b\u6e38\u4f9d\u8d56\u517c\u5bb9\u6027\u3001\u6027\u80fd\u57fa\u7ebf\u7b26\u5408\u5ea6\u7b49\u5173\u952e\u6307\u6807\u3002\u5f53\u91d1\u4e1d\u96c0\u53d1\u5e03\u51fa\u73b0JVM\u5806\u5185\u5b58\u5f02\u5e38\u589e\u957f\u65f6\uff0ceBPF\u7684BCC\u5de5\u5177\u80fd\u7acb\u5373\u751f\u6210\u5185\u5b58\u5206\u914d\u7684\u8c03\u7528\u6808\u706b\u7130\u56fe\uff0c\u8fd9\u79cd\u5373\u65f6\u8bca\u65ad\u80fd\u529b\u4f7f\u5f97\u529f\u80fd\u56de\u6eda\u51b3\u7b56\u65f6\u95f4\u7f29\u77ed80%\u3002<\/p>\n

\u5728A\/B\u6d4b\u8bd5\u573a\u666f\u4e2d\uff0c\u5de5\u7a0b\u5e08\u6b63\u5728\u5c1d\u8bd5\u7528eBPF\u5b9e\u73b0\u6d41\u91cf\u7279\u5f81\u7684\u57fa\u56e0\u7ea7\u6807\u8bb0\uff1a\u4e0d\u4ec5\u8bb0\u5f55\u8bf7\u6c42\u7684HTTP\u5934\u4fe1\u606f\uff0c\u66f4\u80fd\u8ffd\u8e2a\u5b8c\u6574\u7684TCP\u4f1a\u8bdd\u4e0a\u4e0b\u6587\u3002\u8fd9\u79cd\u6df1\u5ea6\u53ef\u89c1\u6027\u5e2e\u52a9\u67d0\u793e\u4ea4\u5e73\u53f0\u5c06\u5b9e\u9a8c\u8bef\u5dee\u7387\u4ece5.6%\u964d\u81f30.8%\uff0c\u529f\u80fd\u8fed\u4ee3\u901f\u5ea6\u63d0\u53473\u500d\u3002<\/p>\n

\n

\u4e94\u3001\u67b6\u6784\u6f14\u8fdb\u7684\u50ac\u5316\u5242<\/h3>\n

\u5f53eBPF\u9047\u89c1Service Mesh\uff0c\u4f20\u7edfsidecar\u6a21\u5f0f\u6b63\u5728\u53d1\u751f\u6839\u672c\u6027\u53d8\u9769\u3002Cilium\u9879\u76ee\u5df2\u8bc1\u660e\uff0c\u901a\u8fc7eBPF\u5b9e\u73b0\u7684\u670d\u52a1\u95f4\u901a\u4fe1\u63a7\u5236\uff0c\u80fd\u591f\u6d88\u9664Envoy\u4ee3\u7406\u5e26\u6765\u7684\u989d\u5916\u5ef6\u8fdf\uff0c\u5c06\u670d\u52a1\u7f51\u683c\u7684\u6570\u636e\u9762\u5f00\u9500\u4ece98ms\u964d\u81f313ms\u3002\u8fd9\u79cd\u6027\u80fd\u7a81\u7834\u4f7f\u5f97\u670d\u52a1\u7f51\u683c\u80fd\u591f\u771f\u6b63\u652f\u6491\u8d77\u5343\u4e07\u7ea7QPS\u7684\u7269\u8054\u7f51\u573a\u666f\u3002<\/p>\n

\u5728Serverless\u9886\u57df\uff0ceBPF\u7684\u51fd\u6570\u7ea7\u8ffd\u8e2a\u80fd\u529b\u6b63\u5728\u91cd\u5851\u51b7\u542f\u52a8\u4f18\u5316\u65b9\u6848\u3002\u901a\u8fc7\u5206\u6790\u5185\u6838\u8c03\u5ea6\u5668\u4e0e\u5185\u5b58\u7ba1\u7406\u5668\u7684\u4ea4\u4e92\u6a21\u5f0f\uff0c\u67d0\u4e91\u5382\u5546\u5c06\u51fd\u6570\u8ba1\u7b97\u5b9e\u4f8b\u7684\u542f\u52a8\u65f6\u95f4\u538b\u7f29\u4e86200ms\uff0c\u8fd9\u5bf9\u4e8e\u9ad8\u9891\u89e6\u53d1\u7684\u4e8b\u4ef6\u9a71\u52a8\u578b\u5e94\u7528\u610f\u5473\u7740\u6bcf\u5e74\u8282\u7701\u6570\u767e\u4e07\u7f8e\u5143\u7684\u8ba1\u7b97\u6210\u672c\u3002<\/p>\n

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