{"id":26387,"date":"2024-09-11T14:36:58","date_gmt":"2024-09-11T06:36:58","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=8657"},"modified":"2024-09-11T14:36:58","modified_gmt":"2024-09-11T06:36:58","slug":"ebpf%ef%bc%9a%e4%b8%ba%e4%ba%91%e8%ae%a1%e7%ae%97%e7%8e%af%e5%a2%83%e5%b8%a6%e6%9d%a5%e7%9a%84%e5%8d%93%e8%b6%8a%e6%80%a7%e8%83%bd%e6%94%b9%e8%bf%9b%e4%b8%8e%e4%bf%9d%e9%9a%9c","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/26387.html","title":{"rendered":"eBPF\uff1a\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u5e26\u6765\u7684\u5353\u8d8a\u6027\u80fd\u6539\u8fdb\u4e0e\u4fdd\u969c"},"content":{"rendered":"

\t\t\t\t<\/p>\n\n<\/p>\n\n\n\n

\u3000\u3000eBPF<\/a>\uff1a\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u5e26\u6765\u7684\u5353\u8d8a\u6027\u80fd\u6539\u8fdb\u4e0e\u4fdd\u969c<\/strong><\/p>\n\n\n\n\n

\u3000\u3000\u5728\u5f53\u4eca\u6570\u5b57\u5316\u65f6\u4ee3\uff0c\u4e91\u8ba1\u7b97\u5df2\u6210\u4e3a\u4f01\u4e1a\u548c\u7ec4\u7ec7\u4e0d\u53ef\u6216\u7f3a\u7684\u57fa\u7840\u8bbe\u65bd\u3002\u968f\u7740\u4e91\u8ba1\u7b97\u5e94\u7528\u7684\u4e0d\u65ad\u6269\u5c55\u548c\u6df1\u5165\uff0c\u5bf9\u6027\u80fd\u7684\u4f18\u5316\u548c\u4fdd\u969c\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u8981\u6c42\u3002\u5728\u8fd9\u4e2a\u80cc\u666f\u4e0b\uff0ceBPF<\/a>\uff08ExtendedBerkeleyPacketFilter\uff09\u6280\u672f\u5e94\u8fd0\u800c\u751f\uff0c\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u5e26\u6765\u4e86\u663e\u8457\u7684\u5353\u8d8a\u6027\u80fd\u6539\u8fdb\u4e0e\u4fdd\u969c\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e00\u3001eBPF<\/a>\u6280\u672f\u7b80\u4ecb<\/strong><\/p>\n\n\n\n\n

\u3000\u3000eBPF\u662f\u4e00\u9879\u9769\u547d\u6027\u7684\u5185\u6838\u6280\u672f\uff0c\u5b83\u5141\u8bb8\u5728\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e2d\u8fd0\u884c\u81ea\u5b9a\u4e49\u7684\u7a0b\u5e8f\u3002\u4f20\u7edf\u7684\u5185\u6838\u7f16\u7a0b\u9700\u8981\u5bf9\u5185\u6838\u8fdb\u884c\u4fee\u6539\u548c\u91cd\u65b0\u7f16\u8bd1\uff0c\u800ceBPF\u63d0\u4f9b\u4e86\u4e00\u79cd\u5b89\u5168\u3001\u9ad8\u6548\u4e14\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u6269\u5c55\u5185\u6838\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n\n

\u3000\u3000eBPF\u7a0b\u5e8f\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u9644\u52a0\u5230\u5404\u79cd\u5185\u6838\u4e8b\u4ef6\u4e0a\uff0c\u5982\u7f51\u7edc\u6570\u636e\u5305\u3001\u7cfb\u7edf\u8c03\u7528\u3001\u5185\u6838\u8ddf\u8e2a\u70b9\u7b49\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5b83\u80fd\u591f\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u884c\u4e3a\u7684\u5b9e\u65f6\u76d1\u6d4b\u548c\u63a7\u5236\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e8c\u3001eBPF\u5728\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u6027\u80fd\u6539\u8fdb<\/strong><\/p>\n\n\n\n\n

    \n\n\n
  1. \u7f51\u7edc\u6027\u80fd\u4f18\u5316<\/strong>\n\u5728\u4e91\u8ba1\u7b97\u4e2d\uff0c\u7f51\u7edc\u6d41\u91cf\u7684\u9ad8\u6548\u5904\u7406\u81f3\u5173\u91cd\u8981\u3002eBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u667a\u80fd\u7684\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\u548c\u8def\u7531\uff0c\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u6570\u636e\u5305\u5904\u7406\uff0c\u4ece\u800c\u63d0\u9ad8\u7f51\u7edc\u541e\u5410\u91cf\u548c\u964d\u4f4e\u5ef6\u8fdf\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u4f8b\u5982\uff0c\u4e91\u6749\u7f51\u7edc\u5229\u7528eBPF\u6280\u672f\u5f00\u53d1\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u53ef\u4ee5\u6839\u636e\u7279\u5b9a\u7684\u89c4\u5219\u5feb\u901f\u7b5b\u9009\u51fa\u5173\u952e\u7684\u7f51\u7edc\u6d41\u91cf\uff0c\u5c06\u5176\u4f18\u5148\u5904\u7406\uff0c\u786e\u4fdd\u91cd\u8981\u4e1a\u52a1\u7684\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n

  2. \u8d44\u6e90\u5206\u914d\u4f18\u5316<\/strong>\n\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u8d44\u6e90\u5206\u914d\u662f\u4e00\u4e2a\u590d\u6742\u7684\u95ee\u9898\u3002eBPF\u53ef\u4ee5\u5b9e\u65f6\u76d1\u6d4b\u7cfb\u7edf\u7684\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u5982CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8I\/O\u7b49\uff0c\u5e76\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u52a8\u6001\u8c03\u6574\u8d44\u6e90\u5206\u914d\u7b56\u7565\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u901a\u8fc7\u7cbe\u786e\u7684\u8d44\u6e90\u76d1\u6d4b\u548c\u7075\u6d3b\u7684\u5206\u914d\u8c03\u6574\uff0ceBPF\u6709\u52a9\u4e8e\u63d0\u9ad8\u8d44\u6e90\u5229\u7528\u7387\uff0c\u907f\u514d\u8d44\u6e90\u6d6a\u8d39\uff0c\u4ece\u800c\u63d0\u5347\u4e91\u8ba1\u7b97\u73af\u5883\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n

  3. \u5e94\u7528\u6027\u80fd\u63d0\u5347<\/strong>\n\u5bf9\u4e8e\u8fd0\u884c\u5728\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u7684\u5e94\u7528\u7a0b\u5e8f\uff0ceBPF\u53ef\u4ee5\u8fdb\u884c\u6027\u80fd\u5256\u6790\u548c\u4f18\u5316\u3002\u5b83\u53ef\u4ee5\u8ddf\u8e2a\u5e94\u7528\u7a0b\u5e8f\u7684\u51fd\u6570\u8c03\u7528\u3001\u7cfb\u7edf\u8c03\u7528\u7b49\uff0c\u5e2e\u52a9\u5f00\u53d1\u4eba\u5458\u627e\u51fa\u6027\u80fd\u74f6\u9888\uff0c\u5e76\u9488\u5bf9\u6027\u5730\u8fdb\u884c\u4f18\u5316\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u4e09\u3001eBPF\u5bf9\u4e91\u8ba1\u7b97\u73af\u5883\u7684\u4fdd\u969c\u4f5c\u7528<\/strong><\/p>\n\n\n\n\n

      \n\n\n
    1. \u5b89\u5168\u589e\u5f3a<\/strong>\n\u4e91\u8ba1\u7b97\u9762\u4e34\u7740\u5404\u79cd\u5b89\u5168\u5a01\u80c1\uff0c\u5982\u6076\u610f\u8f6f\u4ef6\u3001\u7f51\u7edc\u653b\u51fb\u7b49\u3002eBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u5165\u4fb5\u68c0\u6d4b\u3001\u9632\u706b\u5899\u89c4\u5219\u589e\u5f3a\u7b49\u5b89\u5168\u529f\u80fd\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u5b83\u80fd\u591f\u5728\u6570\u636e\u5305\u8fdb\u5165\u7cfb\u7edf\u4e4b\u524d\u8fdb\u884c\u6df1\u5ea6\u68c0\u67e5\uff0c\u53ca\u65f6\u53d1\u73b0\u5e76\u963b\u6b62\u6f5c\u5728\u7684\u5a01\u80c1\uff0c\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u63d0\u4f9b\u66f4\u5f3a\u5927\u7684\u5b89\u5168\u9632\u62a4\u3002<\/p>\n\n\n\n\n\n

    2. \u6545\u969c\u8bca\u65ad\u4e0e\u6392\u67e5<\/strong>\n\u5f53\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u5feb\u901f\u51c6\u786e\u5730\u8bca\u65ad\u548c\u6392\u67e5\u95ee\u9898\u81f3\u5173\u91cd\u8981\u3002eBPF\u53ef\u4ee5\u6536\u96c6\u4e30\u5bcc\u7684\u7cfb\u7edf\u8fd0\u884c\u6570\u636e\uff0c\u5e2e\u52a9\u8fd0\u7ef4\u4eba\u5458\u5feb\u901f\u5b9a\u4f4d\u6545\u969c\u6e90\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u4f8b\u5982\uff0c\u901a\u8fc7\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u548c\u5185\u6838\u4e8b\u4ef6\uff0c\u80fd\u591f\u53d1\u73b0\u5f02\u5e38\u7684\u7cfb\u7edf\u884c\u4e3a\uff0c\u4ece\u800c\u53ca\u65f6\u91c7\u53d6\u63aa\u65bd\u89e3\u51b3\u95ee\u9898\uff0c\u51cf\u5c11\u6545\u969c\u5bf9\u4e1a\u52a1\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n\n\n

    3. \u5408\u89c4\u6027\u4fdd\u969c<\/strong>\n\u8bb8\u591a\u884c\u4e1a\u5bf9\u4e91\u8ba1\u7b97\u7684\u4f7f\u7528\u6709\u4e25\u683c\u7684\u5408\u89c4\u8981\u6c42\u3002eBPF\u53ef\u4ee5\u7528\u4e8e\u76d1\u63a7\u548c\u5ba1\u8ba1\u7cfb\u7edf\u7684\u64cd\u4f5c\uff0c\u786e\u4fdd\u7b26\u5408\u6cd5\u89c4\u548c\u653f\u7b56\u7684\u8981\u6c42\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u56db\u3001eBPF\u4e0e\u4e91\u6749\u7f51\u7edc\u7684\u521b\u65b0\u5b9e\u8df5<\/strong><\/p>\n\n\n\n\n

      \u3000\u3000\u4e91\u6749\u7f51\u7edc\u4f5c\u4e3a\u5728\u4e91\u8ba1\u7b97\u9886\u57df\u7684\u9886\u5148\u4f01\u4e1a\uff0c\u79ef\u6781\u63a2\u7d22\u548c\u5e94\u7528eBPF\u6280\u672f\uff0c\u4e3a\u5ba2\u6237\u63d0\u4f9b\u66f4\u4f18\u8d28\u7684\u670d\u52a1\u548c\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u901a\u8fc7\u5c06eBPF\u4e0e\u81ea\u8eab\u7684\u6280\u672f\u79ef\u7d2f\u76f8\u7ed3\u5408\uff0c\u4e91\u6749\u7f51\u7edc\u5f00\u53d1\u4e86\u4e00\u7cfb\u5217\u5177\u6709\u521b\u65b0\u6027\u7684\u4ea7\u54c1\uff0c\u5982\u9ad8\u6027\u80fd\u7684\u4e91\u7f51\u7edc\u76d1\u63a7\u5de5\u5177\u3001\u667a\u80fd\u7684\u8d44\u6e90\u7ba1\u7406\u5e73\u53f0\u7b49\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u8fd9\u4e9b\u4ea7\u54c1\u5145\u5206\u53d1\u6325\u4e86eBPF\u7684\u4f18\u52bf\uff0c\u5e2e\u52a9\u5ba2\u6237\u5728\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u5b9e\u73b0\u4e86\u66f4\u51fa\u8272\u7684\u6027\u80fd\u3001\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u548c\u66f4\u597d\u7684\u8fd0\u7ef4\u7ba1\u7406\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u4e94\u3001eBPF\u9762\u4e34\u7684\u6311\u6218\u4e0e\u672a\u6765\u5c55\u671b<\/strong><\/p>\n\n\n\n\n

      \u3000\u3000\u5c3d\u7ba1eBPF\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u5e26\u6765\u4e86\u8bf8\u591a\u4f18\u52bf\uff0c\u4f46\u4e5f\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u9996\u5148\uff0ceBPF\u7a0b\u5e8f\u7684\u5f00\u53d1\u9700\u8981\u4e00\u5b9a\u7684\u6280\u672f\u95e8\u69db\uff0c\u9700\u8981\u5f00\u53d1\u4eba\u5458\u5bf9\u5185\u6838\u548c\u7cfb\u7edf\u7f16\u7a0b\u6709\u6df1\u5165\u7684\u4e86\u89e3\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u5176\u6b21\uff0c\u7531\u4e8eeBPF\u5728\u5185\u6838\u4e2d\u8fd0\u884c\uff0c\u9700\u8981\u786e\u4fdd\u7a0b\u5e8f\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\uff0c\u907f\u514d\u5bf9\u7cfb\u7edf\u9020\u6210\u4e0d\u826f\u5f71\u54cd\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u7136\u800c\uff0c\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u793e\u533a\u7684\u4e0d\u65ad\u58ee\u5927\uff0c\u8fd9\u4e9b\u6311\u6218\u6b63\u5728\u9010\u6b65\u5f97\u5230\u89e3\u51b3\u3002\u672a\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u671f\u5f85eBPF\u5728\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\u53d1\u6325\u66f4\u52a0\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u4e3a\u4f01\u4e1a\u548c\u7ec4\u7ec7\u5e26\u6765\u66f4\u591a\u7684\u4ef7\u503c\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u603b\u4e4b\uff0ceBPF\u4f5c\u4e3a\u4e00\u9879\u5f3a\u5927\u7684\u6280\u672f\uff0c\u4e3a\u4e91\u8ba1\u7b97\u73af\u5883\u5e26\u6765\u4e86\u663e\u8457\u7684\u6027\u80fd\u6539\u8fdb\u548c\u4fdd\u969c\u3002\u4e91\u6749\u7f51\u7edc\u7b49\u884c\u4e1a\u9886\u5bfc\u8005\u7684\u79ef\u6781\u63a2\u7d22\u548c\u5e94\u7528\uff0c\u5c06\u63a8\u52a8eBPF\u6280\u672f\u4e0d\u65ad\u53d1\u5c55\u548c\u5b8c\u5584\uff0c\u4e3a\u4e91\u8ba1\u7b97\u7684\u672a\u6765\u53d1\u5c55\u6ce8\u5165\u65b0\u7684\u6d3b\u529b\u3002\u5728\u4e91\u8ba1\u7b97\u65e5\u76ca\u666e\u53ca\u7684\u4eca\u5929\uff0c\u5145\u5206\u5229\u7528eBPF\u7684\u4f18\u52bf\uff0c\u5c06\u6709\u52a9\u4e8e\u4f01\u4e1a\u6784\u5efa\u66f4\u9ad8\u6548\u3001\u66f4\u5b89\u5168\u3001\u66f4\u53ef\u9760\u7684\u4e91\u8ba1\u7b97\u73af\u5883\uff0c\u4ece\u800c\u5728\u6570\u5b57\u5316\u7ade\u4e89\u4e2d\u5360\u636e\u4f18\u52bf\u5730\u4f4d\u3002<\/p>\n\n\n]]>\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

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