{"id":23934,"date":"2025-01-10T00:05:24","date_gmt":"2025-01-09T16:05:24","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=23934"},"modified":"2025-01-10T00:05:24","modified_gmt":"2025-01-09T16:05:24","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87ebpf%e5%ae%9e%e7%8e%b0%e9%ab%98%e6%95%88%e7%9a%84%e7%bd%91%e7%bb%9c%e6%b5%81%e9%87%8f%e6%95%b4%e5%bd%a2%e5%92%8c%e8%b0%83%e5%ba%a6%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/23934.html","title":{"rendered":"\u5982\u4f55\u901a\u8fc7eBPF\u5b9e\u73b0\u9ad8\u6548\u7684\u7f51\u7edc\u6d41\u91cf\u6574\u5f62\u548c\u8c03\u5ea6\uff1f"},"content":{"rendered":"

\t\t\t\t\n\n

\"\u5982\u4f55\u901a\u8fc7eBPF\u5b9e\u73b0\u9ad8\u6548\u7684\u7f51\u7edc\u6d41\u91cf\u6574\u5f62\u548c\u8c03\u5ea6\uff1f\"<\/p>\n\n<\/p>\n\n\n\n

\u5728\u5f53\u4eca\u7684\u4e92\u8054\u7f51\u65f6\u4ee3\uff0c\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u5df2\u6210\u4e3a\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u9762\u4e34\u7684\u6838\u5fc3\u6311\u6218\u4e4b\u4e00\u3002\u968f\u7740\u5e94\u7528\u590d\u6742\u6027\u548c\u7528\u6237\u9700\u6c42\u7684\u4e0d\u65ad\u589e\u957f\uff0c\u4f20\u7edf\u7684\u7f51\u7edc\u6d41\u91cf\u63a7\u5236\u65b9\u6cd5\u9010\u6e10\u663e\u5f97\u529b\u4e0d\u4ece\u5fc3\u3002\u5982\u4f55\u5728\u4fdd\u8bc1\u9ad8\u6548\u4f20\u8f93\u7684\u540c\u65f6\uff0c\u5b9e\u73b0\u7cbe\u7ec6\u5316\u7684\u6d41\u91cf\u8c03\u5ea6\u548c\u6574\u5f62\uff0c\u6210\u4e3a\u4e86\u6280\u672f\u9886\u57df\u7684\u70ed\u95e8\u8bdd\u9898\u3002\u800ceBPF\uff08Extended Berkeley Packet Filter\uff09\u4f5c\u4e3a\u4e00\u79cd\u65b0\u5174\u7684\u6280\u672f\uff0c\u6b63\u5728\u4e3a\u8fd9\u4e00\u96be\u9898\u63d0\u4f9b\u5168\u65b0\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n\n\n\n\n

eBPF\u6700\u521d\u88ab\u8bbe\u8ba1\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u7684\u8fc7\u6ee4\uff0c\u4f46\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u5176\u80fd\u529b\u5df2\u7ecf\u8fdc\u8fdc\u8d85\u51fa\u4e86\u6700\u521d\u7684\u8303\u7574\u3002\u5982\u4eca\uff0ceBPF\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u7f51\u7edc\u6d41\u91cf\u7684\u76d1\u63a7\u548c\u5206\u6790\uff0c\u8fd8\u80fd\u901a\u8fc7\u7f16\u7a0b\u7684\u65b9\u5f0f\u5b9e\u73b0\u9ad8\u6548\u7684\u6d41\u91cf\u6574\u5f62\u548c\u8c03\u5ea6\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u5229\u7528eBPF\u6280\u672f\uff0c\u5728\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u4e2d\u5b9e\u73b0\u66f4\u9ad8\u7684\u6548\u7387\u548c\u7075\u6d3b\u6027\u3002<\/p>\n\n\n\n\n

eBPF\u7684\u6838\u5fc3\u4f18\u52bf<\/h3>\n\n\n\n\n

eBPF\u7684\u6838\u5fc3\u4f18\u52bf\u5728\u4e8e\u5176\u7075\u6d3b\u6027\u548c\u9ad8\u6027\u80fd<\/strong>\u3002\u4e0e\u4f20\u7edf\u7684\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u5de5\u5177\u76f8\u6bd4\uff0ceBPF\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u5185\u6838\u7a7a\u95f4\u4e2d\u76f4\u63a5\u8fd0\u884c\u81ea\u5b9a\u4e49\u7684\u7a0b\u5e8f\uff0c\u800c\u65e0\u9700\u4fee\u6539\u5185\u6838\u4ee3\u7801\u3002\u8fd9\u79cd\u80fd\u529b\u4f7f\u5f97eBPF\u80fd\u591f\u4ee5\u6781\u4f4e\u7684\u5ef6\u8fdf\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\uff0c\u540c\u65f6\u907f\u514d\u4e86\u7528\u6237\u6001\u548c\u5185\u6838\u6001\u4e4b\u95f4\u7684\u9891\u7e41\u5207\u6362\uff0c\u4ece\u800c\u663e\u8457\u63d0\u5347\u4e86\u6027\u80fd\u3002<\/p>\n\n\n\n\n

\u6b64\u5916\uff0ceBPF\u8fd8\u652f\u6301\u52a8\u6001\u52a0\u8f7d\u548c\u5378\u8f7d\u7a0b\u5e8f\uff0c\u8fd9\u610f\u5473\u7740\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u5b9e\u65f6\u8c03\u6574\u6d41\u91cf\u7ba1\u7406\u7b56\u7565\u3002\u4f8b\u5982\uff0c\u5728\u6d41\u91cf\u9ad8\u5cf0\u671f\uff0c\u53ef\u4ee5\u901a\u8fc7eBPF\u7a0b\u5e8f\u5feb\u901f\u5b9e\u65bd\u9650\u901f\u6216\u4f18\u5148\u7ea7\u8c03\u5ea6\uff0c\u800c\u5728\u6d41\u91cf\u4f4e\u8c37\u671f\u5219\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u7b56\u7565\u4ee5\u4f18\u5316\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n\n\n\n\n

\u7f51\u7edc\u6d41\u91cf\u6574\u5f62\u7684\u5b9e\u73b0<\/h3>\n\n\n\n\n

\u7f51\u7edc\u6d41\u91cf\u6574\u5f62\u7684\u6838\u5fc3\u76ee\u6807\u662f\u901a\u8fc7\u63a7\u5236\u6570\u636e\u5305\u7684\u53d1\u9001\u901f\u7387\u548c\u4f18\u5148\u7ea7\uff0c\u786e\u4fdd\u7f51\u7edc\u8d44\u6e90\u7684\u5408\u7406\u5206\u914d\u3002\u4f20\u7edf\u7684\u6d41\u91cf\u6574\u5f62\u65b9\u6cd5\u901a\u5e38\u4f9d\u8d56\u4e8e\u786c\u4ef6\u8bbe\u5907\u6216\u590d\u6742\u7684\u8f6f\u4ef6\u914d\u7f6e\uff0c\u800ceBPF\u5219\u63d0\u4f9b\u4e86\u4e00\u79cd\u66f4\u4e3a\u7075\u6d3b\u548c\u9ad8\u6548\u7684\u5b9e\u73b0\u65b9\u5f0f\u3002<\/p>\n\n\n\n\n

\u901a\u8fc7eBPF\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u7f16\u5199\u7a0b\u5e8f\u6765\u5b9e\u65f6\u76d1\u63a7\u7f51\u7edc\u6d41\u91cf<\/strong>\uff0c\u5e76\u6839\u636e\u9884\u5b9a\u4e49\u7684\u89c4\u5219\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u5904\u7406\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u57fa\u4e8e\u6570\u636e\u5305\u7684\u6765\u6e90\u3001\u76ee\u6807\u5730\u5740\u6216\u534f\u8bae\u7c7b\u578b\uff0c\u52a8\u6001\u8c03\u6574\u5176\u53d1\u9001\u901f\u7387\u6216\u4f18\u5148\u7ea7\u3002\u8fd9\u79cd\u7cbe\u7ec6\u5316\u7684\u63a7\u5236\u80fd\u529b\u4f7f\u5f97eBPF\u5728\u7f51\u7edc\u6d41\u91cf\u6574\u5f62\u4e2d\u8868\u73b0\u51fa\u8272\u3002<\/p>\n\n\n\n\n

\u4e00\u4e2a\u5178\u578b\u7684\u5e94\u7528\u573a\u666f\u662f\u670d\u52a1\u8d28\u91cf\uff08QoS\uff09\u7ba1\u7406<\/strong>\u3002\u901a\u8fc7eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u4e3a\u4e0d\u540c\u7c7b\u578b\u7684\u6d41\u91cf\u5206\u914d\u4e0d\u540c\u7684\u4f18\u5148\u7ea7\u3002\u4f8b\u5982\uff0c\u5b9e\u65f6\u89c6\u9891\u6d41\u53ef\u4ee5\u88ab\u8d4b\u4e88\u66f4\u9ad8\u7684\u4f18\u5148\u7ea7\uff0c\u4ee5\u786e\u4fdd\u5176\u4f20\u8f93\u7684\u6d41\u7545\u6027\uff0c\u800c\u666e\u901a\u7684\u6570\u636e\u4f20\u8f93\u5219\u53ef\u4ee5\u9002\u5f53\u964d\u4f4e\u4f18\u5148\u7ea7\uff0c\u4ee5\u907f\u514d\u5bf9\u5173\u952e\u4e1a\u52a1\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n\n

\u7f51\u7edc\u6d41\u91cf\u8c03\u5ea6\u7684\u4f18\u5316<\/h3>\n\n\n\n\n

\u9664\u4e86\u6d41\u91cf\u6574\u5f62\uff0ceBPF\u5728\u7f51\u7edc\u6d41\u91cf\u8c03\u5ea6\u65b9\u9762\u4e5f\u5c55\u73b0\u51fa\u4e86\u5f3a\u5927\u7684\u6f5c\u529b\u3002\u4f20\u7edf\u7684\u8c03\u5ea6\u7b97\u6cd5\u901a\u5e38\u4f9d\u8d56\u4e8e\u56fa\u5b9a\u7684\u89c4\u5219\uff0c\u96be\u4ee5\u5e94\u5bf9\u590d\u6742\u7684\u7f51\u7edc\u73af\u5883\u548c\u52a8\u6001\u53d8\u5316\u7684\u6d41\u91cf\u6a21\u5f0f\u3002\u800ceBPF\u5219\u53ef\u4ee5\u901a\u8fc7\u7f16\u7a0b\u7684\u65b9\u5f0f\u5b9e\u73b0\u52a8\u6001\u8c03\u5ea6\u7b56\u7565<\/strong>\uff0c\u4ece\u800c\u66f4\u597d\u5730\u9002\u5e94\u5b9e\u9645\u9700\u6c42\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7eBPF\u7a0b\u5e8f\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861<\/strong>\uff0c\u5c06\u6d41\u91cf\u52a8\u6001\u5206\u914d\u5230\u591a\u4e2a\u7f51\u7edc\u63a5\u53e3\u6216\u670d\u52a1\u5668\u4e0a\u3002\u8fd9\u79cd\u52a8\u6001\u8c03\u5ea6\u4e0d\u4ec5\u80fd\u591f\u63d0\u9ad8\u7f51\u7edc\u7684\u6574\u4f53\u541e\u5410\u91cf\uff0c\u8fd8\u80fd\u6709\u6548\u907f\u514d\u5355\u70b9\u6545\u969c\u5bfc\u81f4\u7684\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n\n

\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u62e5\u585e\u63a7\u5236<\/strong>\u3002\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u7f51\u7edc\u72b6\u6001\uff0ceBPF\u7a0b\u5e8f\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u6570\u636e\u5305\u7684\u53d1\u9001\u901f\u7387\uff0c\u4ece\u800c\u907f\u514d\u7f51\u7edc\u62e5\u585e\u7684\u53d1\u751f\u3002\u8fd9\u79cd\u4e3b\u52a8\u5f0f\u7684\u62e5\u585e\u63a7\u5236\u673a\u5236\u6bd4\u4f20\u7edf\u7684\u88ab\u52a8\u5f0f\u65b9\u6cd5\u66f4\u52a0\u9ad8\u6548\uff0c\u80fd\u591f\u663e\u8457\u63d0\u5347\u7f51\u7edc\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n\n\n\n\n

\u5b9e\u9645\u5e94\u7528\u6848\u4f8b<\/h3>\n\n\n\n\n

\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3eBPF\u5728\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u4e2d\u7684\u5e94\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u53c2\u8003\u4e00\u4e9b\u5b9e\u9645\u6848\u4f8b\u3002\u4f8b\u5982\uff0c\u67d0\u5927\u578b\u4e91\u670d\u52a1\u63d0\u4f9b\u5546\u5229\u7528eBPF\u6280\u672f\u5b9e\u73b0\u4e86\u9ad8\u6548\u7684\u7f51\u7edc\u6d41\u91cf\u76d1\u63a7\u548c\u8c03\u5ea6<\/strong>\u3002\u901a\u8fc7\u90e8\u7f72eBPF\u7a0b\u5e8f\uff0c\u8be5\u516c\u53f8\u80fd\u591f\u5b9e\u65f6\u5206\u6790\u7f51\u7edc\u6d41\u91cf\uff0c\u5e76\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u52a8\u6001\u8c03\u6574\u6d41\u91cf\u7b56\u7565\u3002\u8fd9\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u6574\u4f53\u6027\u80fd\uff0c\u8fd8\u663e\u8457\u964d\u4f4e\u4e86\u8fd0\u7ef4\u6210\u672c\u3002<\/p>\n\n\n\n\n

\u53e6\u4e00\u4e2a\u6848\u4f8b\u662f\u67d0\u89c6\u9891\u6d41\u5a92\u4f53\u5e73\u53f0\uff0c\u8be5\u5e73\u53f0\u5229\u7528eBPF\u6280\u672f\u5b9e\u73b0\u4e86\u7cbe\u7ec6\u5316\u7684\u6d41\u91cf\u6574\u5f62<\/strong>\u3002\u901a\u8fc7\u4e3a\u4e0d\u540c\u7c7b\u578b\u7684\u89c6\u9891\u6d41\u5206\u914d\u4e0d\u540c\u7684\u4f18\u5148\u7ea7\uff0c\u8be5\u5e73\u53f0\u6210\u529f\u89e3\u51b3\u4e86\u9ad8\u5cf0\u671f\u6d41\u91cf\u62e5\u585e\u7684\u95ee\u9898\uff0c\u4ece\u800c\u63d0\u5347\u4e86\u7528\u6237\u7684\u89c2\u770b\u4f53\u9a8c\u3002<\/p>\n\n\n\n\n

\u672a\u6765\u5c55\u671b<\/h3>\n\n\n\n\n

\u968f\u7740eBPF\u6280\u672f\u7684\u4e0d\u65ad\u6210\u719f\uff0c\u5176\u5728\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u4e2d\u7684\u5e94\u7528\u524d\u666f\u5c06\u66f4\u52a0\u5e7f\u9614\u3002\u672a\u6765\uff0c\u6211\u4eec\u53ef\u4ee5\u9884\u89c1eBPF\u5c06\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u53d1\u6325\u66f4\u5927\u7684\u4f5c\u7528\uff1a<\/p>\n\n\n\n\n

    \n\n\n
  1. \u667a\u80fd\u5316\u6d41\u91cf\u7ba1\u7406<\/strong>\uff1a\u901a\u8fc7\u7ed3\u5408\u673a\u5668\u5b66\u4e60\u548c\u4eba\u5de5\u667a\u80fd\u6280\u672f\uff0ceBPF\u53ef\u4ee5\u5b9e\u73b0\u66f4\u52a0\u667a\u80fd\u5316\u7684\u6d41\u91cf\u7ba1\u7406\u7b56\u7565\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u63d0\u5347\u7f51\u7edc\u7684\u6548\u7387\u548c\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n\n
  2. \u8de8\u5e73\u53f0\u652f\u6301<\/strong>\uff1a\u968f\u7740eBPF\u5728Linux\u4e4b\u5916\u7684\u5e73\u53f0\u4e0a\u5f97\u5230\u652f\u6301\uff0c\u5176\u5e94\u7528\u8303\u56f4\u5c06\u8fdb\u4e00\u6b65\u6269\u5927\uff0c\u4e3a\u66f4\u591a\u7684\u4f01\u4e1a\u548c\u5f00\u53d1\u8005\u63d0\u4f9b\u9ad8\u6548\u7684\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\u3002<\/li>\n\n\n\n\n
  3. \u751f\u6001\u7cfb\u7edf\u5b8c\u5584<\/strong>\uff1a\u968f\u7740eBPF\u751f\u6001\u7cfb\u7edf\u7684\u4e0d\u65ad\u5b8c\u5584\uff0c\u5f00\u53d1\u8005\u5c06\u80fd\u591f\u66f4\u52a0\u4fbf\u6377\u5730\u4f7f\u7528eBPF\u6280\u672f\uff0c\u4ece\u800c\u52a0\u901f\u5176\u5728\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u4e2d\u7684\u666e\u53ca\u548c\u5e94\u7528\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

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