{"id":9216,"date":"2024-09-13T13:17:38","date_gmt":"2024-09-13T05:17:38","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=9216"},"modified":"2024-09-13T13:17:38","modified_gmt":"2024-09-13T05:17:38","slug":"%e6%8e%a2%e8%ae%a8ebpf%e5%a6%82%e4%bd%95%e6%88%90%e4%b8%ba%e6%8f%90%e5%8d%87%e7%b3%bb%e7%bb%9f%e5%8f%af%e9%9d%a0%e6%80%a7%e7%9a%84%e5%85%b3%e9%94%ae%e5%9b%a0%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/9216.html","title":{"rendered":"\u63a2\u8ba8eBPF\u5982\u4f55\u6210\u4e3a\u63d0\u5347\u7cfb\u7edf\u53ef\u9760\u6027\u7684\u5173\u952e\u56e0\u7d20"},"content":{"rendered":"

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

\u3000\u3000\u63a2\u8ba8eBPF<\/a>\u5982\u4f55\u6210\u4e3a\u63d0\u5347\u7cfb\u7edf\u53ef\u9760\u6027\u7684\u5173\u952e\u56e0\u7d20<\/p>\n\n\n\n\n

\u3000\u3000\u5728\u5f53\u4eca\u6570\u5b57\u5316\u7684\u65f6\u4ee3\uff0c\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u6210\u4e3a\u4e86\u4f01\u4e1a\u8fd0\u8425\u548c\u4e1a\u52a1\u53d1\u5c55\u7684\u57fa\u77f3\u3002\u4efb\u4f55\u7cfb\u7edf\u6545\u969c\u6216\u6027\u80fd\u4e0b\u964d\u90fd\u53ef\u80fd\u5bfc\u81f4\u5de8\u5927\u7684\u7ecf\u6d4e\u635f\u5931\u548c\u58f0\u8a89\u635f\u5bb3\u3002\u56e0\u6b64\uff0c\u5bfb\u627e\u6709\u6548\u7684\u6280\u672f\u624b\u6bb5\u6765\u63d0\u5347\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u53d8\u5f97\u81f3\u5173\u91cd\u8981\u3002\u5728\u4f17\u591a\u7684\u65b0\u5174\u6280\u672f\u4e2d\uff0ceBPF<\/a>\uff08ExtendedBerkeleyPacketFilter\uff09\u8131\u9896\u800c\u51fa\uff0c\u6210\u4e3a\u4e86\u63d0\u5347\u7cfb\u7edf\u53ef\u9760\u6027\u7684\u5173\u952e\u56e0\u7d20\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8eBPF<\/a>\u662f\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e00\u91cd\u8981\u76ee\u6807\u7684\uff0c\u5e76\u7ed3\u5408\u4e91\u6749\u7f51\u7edc\u7684\u76f8\u5173\u89e3\u51b3\u65b9\u6848\uff0c\u4e3a\u60a8\u63ed\u793a\u5176\u80cc\u540e\u7684\u5965\u79d8\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e00\u3001eBPF\u6280\u672f\u6982\u8ff0<\/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\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\u3002\u4e0e\u4f20\u7edf\u7684\u5185\u6838\u6a21\u5757\u5f00\u53d1\u76f8\u6bd4\uff0ceBPF\u5177\u6709\u66f4\u4f4e\u7684\u5f00\u53d1\u95e8\u69db\u3001\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u548c\u66f4\u597d\u7684\u6027\u80fd\u3002\u901a\u8fc7eBPF\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5728\u5185\u6838\u4e2d\u5b9e\u73b0\u5404\u79cd\u529f\u80fd\uff0c\u5982\u7f51\u7edc\u76d1\u63a7\u3001\u6027\u80fd\u5206\u6790\u3001\u5b89\u5168\u68c0\u6d4b\u7b49\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e8c\u3001eBPF\u63d0\u5347\u7cfb\u7edf\u53ef\u9760\u6027\u7684\u65b9\u5f0f<\/strong><\/p>\n\n\n\n\n

    \n\n\n
  1. \u9ad8\u6548\u7684\u6027\u80fd\u76d1\u63a7<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u7cfb\u7edf\u6027\u80fd\u7684\u5b9e\u65f6\u76d1\u63a7\u5bf9\u4e8e\u53ca\u65f6\u53d1\u73b0\u6f5c\u5728\u95ee\u9898\u548c\u4f18\u5316\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002eBPF\u53ef\u4ee5\u5728\u4e0d\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\u7684\u524d\u63d0\u4e0b\uff0c\u6df1\u5165\u5185\u6838\u83b7\u53d6\u5404\u79cd\u6027\u80fd\u6307\u6807\uff0c\u5982CPU\u4f7f\u7528\u7387\u3001\u5185\u5b58\u5206\u914d\u3001\u78c1\u76d8I\/O\u7b49\u3002\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u6307\u6807\u7684\u5206\u6790\uff0c\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u4f18\u5316\u63aa\u65bd\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u4f8b\u5982\uff0c\u4f7f\u7528eBPF\u53ef\u4ee5\u68c0\u6d4b\u5230\u67d0\u4e2a\u8fdb\u7a0b\u8fc7\u5ea6\u5360\u7528CPU\u8d44\u6e90\uff0c\u4ece\u800c\u53ca\u65f6\u8c03\u6574\u5176\u4f18\u5148\u7ea7\u6216\u9650\u5236\u5176\u8d44\u6e90\u4f7f\u7528\uff0c\u907f\u514d\u7cfb\u7edf\u56e0\u5355\u4e2a\u8fdb\u7a0b\u7684\u5f02\u5e38\u884c\u4e3a\u800c\u5d29\u6e83\u3002<\/p>\n\n\n\n\n\n

  2. \u7cbe\u51c6\u7684\u6545\u969c\u8bca\u65ad<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u5f53\u7cfb\u7edf\u51fa\u73b0\u6545\u969c\u65f6\uff0c\u5feb\u901f\u51c6\u786e\u5730\u8bca\u65ad\u51fa\u95ee\u9898\u6240\u5728\u662f\u6062\u590d\u7cfb\u7edf\u6b63\u5e38\u8fd0\u884c\u7684\u5173\u952e\u3002eBPF\u80fd\u591f\u6355\u83b7\u5185\u6838\u4e2d\u7684\u5404\u79cd\u4e8b\u4ef6\u548c\u6570\u636e\uff0c\u4e3a\u6545\u969c\u8bca\u65ad\u63d0\u4f9b\u4e30\u5bcc\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u6bd4\u5982\uff0c\u5728\u7f51\u7edc\u901a\u4fe1\u4e2d\uff0c\u5982\u679c\u51fa\u73b0\u6570\u636e\u5305\u4e22\u5931\u6216\u5ef6\u8fdf\u8fc7\u9ad8\u7684\u60c5\u51b5\uff0ceBPF\u53ef\u4ee5\u8ffd\u8e2a\u6570\u636e\u5305\u7684\u4f20\u8f93\u8def\u5f84\uff0c\u627e\u51fa\u53ef\u80fd\u7684\u6545\u969c\u70b9\uff0c\u5982\u7f51\u7edc\u8bbe\u5907\u6545\u969c\u3001\u8def\u7531\u914d\u7f6e\u9519\u8bef\u7b49\u3002<\/p>\n\n\n\n\n\n

  3. \u589e\u5f3a\u7684\u5b89\u5168\u9632\u62a4<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u662f\u53ef\u9760\u6027\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002eBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u5165\u4fb5\u68c0\u6d4b\u3001\u6f0f\u6d1e\u5229\u7528\u9632\u62a4\u7b49\u5b89\u5168\u529f\u80fd\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u5b83\u53ef\u4ee5\u76d1\u63a7\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u8fde\u63a5\u7b49\u884c\u4e3a\uff0c\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u6d3b\u52a8\uff0c\u5e76\u91c7\u53d6\u963b\u6b62\u63aa\u65bd\uff0c\u9632\u6b62\u6076\u610f\u8f6f\u4ef6\u548c\u653b\u51fb\u8005\u5bf9\u7cfb\u7edf\u9020\u6210\u635f\u5bb3\u3002<\/p>\n\n\n\n\n\n

  4. \u4f18\u5316\u7684\u8d44\u6e90\u7ba1\u7406<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u5408\u7406\u7684\u8d44\u6e90\u5206\u914d\u548c\u7ba1\u7406\u662f\u786e\u4fdd\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\u7684\u57fa\u7840\u3002eBPF\u53ef\u4ee5\u5e2e\u52a9\u5b9e\u65f6\u76d1\u6d4b\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\uff0c\u5e76\u6839\u636e\u9884\u8bbe\u7684\u7b56\u7565\u8fdb\u884c\u52a8\u6001\u8c03\u6574\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u6bd4\u5982\uff0c\u5f53\u5185\u5b58\u4f7f\u7528\u63a5\u8fd1\u9608\u503c\u65f6\uff0ceBPF\u53ef\u4ee5\u89e6\u53d1\u6e05\u7406\u7f13\u5b58\u6216\u91ca\u653e\u4e0d\u5fc5\u8981\u7684\u8d44\u6e90\uff0c\u4ee5\u907f\u514d\u5185\u5b58\u6ea2\u51fa\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u4e09\u3001\u4e91\u6749\u7f51\u7edc\u4e0eeBPF\u7684\u7ed3\u5408<\/strong><\/p>\n\n\n\n\n

    \u3000\u3000\u4e91\u6749\u7f51\u7edc\u4f5c\u4e3a\u884c\u4e1a\u5185\u7684\u9886\u5148\u4f01\u4e1a\uff0c\u4e00\u76f4\u81f4\u529b\u4e8e\u4e3a\u5ba2\u6237\u63d0\u4f9b\u521b\u65b0\u7684\u7f51\u7edc\u89e3\u51b3\u65b9\u6848\u3002\u4e91\u6749\u7f51\u7edc\u5145\u5206\u5229\u7528eBPF\u6280\u672f\u7684\u4f18\u52bf\uff0c\u6253\u9020\u4e86\u4e00\u7cfb\u5217\u5f3a\u5927\u7684\u4ea7\u54c1\u548c\u670d\u52a1\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u4e86\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n\n

      \n\n\n
    1. \u4e91\u6749\u7f51\u7edc\u7684\u6027\u80fd\u76d1\u63a7\u5e73\u53f0<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u57fa\u4e8eeBPF\u6280\u672f\uff0c\u4e91\u6749\u7f51\u7edc\u5f00\u53d1\u4e86\u6027\u80fd\u76d1\u63a7\u5e73\u53f0\uff0c\u80fd\u591f\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u6027\u80fd\u7684\u5168\u65b9\u4f4d\u3001\u5b9e\u65f6\u76d1\u63a7\u3002\u8be5\u5e73\u53f0\u4e0d\u4ec5\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6027\u80fd\u6307\u6807\u6570\u636e\uff0c\u8fd8\u5177\u5907\u667a\u80fd\u5206\u6790\u548c\u544a\u8b66\u529f\u80fd\uff0c\u5e2e\u52a9\u7528\u6237\u5728\u7b2c\u4e00\u65f6\u95f4\u53d1\u73b0\u5e76\u89e3\u51b3\u6027\u80fd\u95ee\u9898\u3002<\/p>\n\n\n\n\n\n

    2. \u4e91\u6749\u7f51\u7edc\u7684\u5b89\u5168\u9632\u62a4\u65b9\u6848<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u7ed3\u5408eBPF\uff0c\u4e91\u6749\u7f51\u7edc\u7684\u5b89\u5168\u9632\u62a4\u65b9\u6848\u80fd\u591f\u5b9e\u73b0\u66f4\u7cbe\u7ec6\u7684\u5165\u4fb5\u68c0\u6d4b\u548c\u9632\u62a4\u3002\u901a\u8fc7\u5bf9\u7cfb\u7edf\u5185\u6838\u884c\u4e3a\u7684\u6df1\u5ea6\u76d1\u63a7\uff0c\u6709\u6548\u963b\u6b62\u5404\u7c7b\u5b89\u5168\u5a01\u80c1\uff0c\u4fdd\u969c\u7cfb\u7edf\u7684\u5b89\u5168\u7a33\u5b9a\u8fd0\u884c\u3002<\/p>\n\n\n\n\n\n

    3. \u4e91\u6749\u7f51\u7edc\u7684\u8d44\u6e90\u4f18\u5316\u670d\u52a1<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u5229\u7528eBPF\u7684\u8d44\u6e90\u76d1\u6d4b\u548c\u7ba1\u7406\u80fd\u529b\uff0c\u4e91\u6749\u7f51\u7edc\u4e3a\u5ba2\u6237\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u8d44\u6e90\u4f18\u5316\u670d\u52a1\u3002\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u8d44\u6e90\u5206\u914d\uff0c\u63d0\u9ad8\u8d44\u6e90\u5229\u7528\u7387\uff0c\u964d\u4f4e\u7cfb\u7edf\u56e0\u8d44\u6e90\u4e0d\u8db3\u800c\u51fa\u73b0\u6545\u969c\u7684\u98ce\u9669\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u56db\u3001eBPF\u9762\u4e34\u7684\u6311\u6218\u4e0e\u672a\u6765\u5c55\u671b<\/strong><\/p>\n\n\n\n\n

      \u3000\u3000\u5c3d\u7ba1eBPF\u5728\u63d0\u5347\u7cfb\u7edf\u53ef\u9760\u6027\u65b9\u9762\u8868\u73b0\u51fa\u8272\uff0c\u4f46\u5b83\u4e5f\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u9996\u5148\uff0ceBPF\u6280\u672f\u76f8\u5bf9\u8f83\u65b0\uff0c\u5f00\u53d1\u4eba\u5458\u5bf9\u5176\u7684\u719f\u6089\u7a0b\u5ea6\u548c\u7ecf\u9a8c\u53ef\u80fd\u6709\u9650\uff0c\u9700\u8981\u66f4\u591a\u7684\u5b66\u4e60\u548c\u5b9e\u8df5\u6765\u5145\u5206\u53d1\u6325\u5176\u6f5c\u529b\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u5176\u6b21\uff0c\u7531\u4e8eeBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u8fd0\u884c\uff0c\u5176\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\uff0c\u9700\u8981\u4e25\u683c\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u7136\u800c\uff0c\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u5b8c\u5584\uff0ceBPF\u7684\u672a\u6765\u524d\u666f\u5341\u5206\u5e7f\u9614\u3002\u9884\u8ba1\u5728\u672a\u6765\uff0ceBPF\u5c06\u4e0e\u4eba\u5de5\u667a\u80fd\u3001\u5927\u6570\u636e\u7b49\u6280\u672f\u6df1\u5ea6\u878d\u5408\uff0c\u4e3a\u7cfb\u7edf\u53ef\u9760\u6027\u7684\u63d0\u5347\u5e26\u6765\u66f4\u591a\u521b\u65b0\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n\n

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