{"id":31896,"date":"2025-01-09T22:46:20","date_gmt":"2025-01-09T14:46:20","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=23805"},"modified":"2025-01-09T22:46:20","modified_gmt":"2025-01-09T14:46:20","slug":"ebpf%e5%9c%a8%e4%ba%91%e5%ad%98%e5%82%a8%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e5%85%b7%e4%bd%93%e5%ba%94%e7%94%a8%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/31896.html","title":{"rendered":"eBPF\u5728\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

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

\"eBPF\u5728\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u6709\u54ea\u4e9b\uff1f\"<\/p>\n\n<\/p>\n\n\n\n

\u5728\u5f53\u4eca\u4e91\u8ba1\u7b97\u548c\u5927\u6570\u636e\u65f6\u4ee3\uff0c\u4e91\u5b58\u50a8\u7cfb\u7edf\u5df2\u7ecf\u6210\u4e3a\u4f01\u4e1a\u6570\u636e\u7ba1\u7406\u7684\u6838\u5fc3\u57fa\u7840\u8bbe\u65bd\u3002\u7136\u800c\uff0c\u968f\u7740\u6570\u636e\u91cf\u7684\u7206\u70b8\u5f0f\u589e\u957f\u548c\u4e1a\u52a1\u9700\u6c42\u7684\u65e5\u76ca\u590d\u6742\uff0c\u4f20\u7edf\u7684\u76d1\u63a7\u548c\u4f18\u5316\u624b\u6bb5\u5df2\u7ecf\u96be\u4ee5\u6ee1\u8db3\u73b0\u4ee3\u4e91\u5b58\u50a8\u7cfb\u7edf\u7684\u9700\u6c42\u3002\u6b63\u662f\u5728\u8fd9\u6837\u7684\u80cc\u666f\u4e0b\uff0ceBPF\uff08Extended Berkeley Packet Filter\uff09\u6280\u672f\u5e94\u8fd0\u800c\u751f\uff0c\u4e3a\u4e91\u5b58\u50a8\u7cfb\u7edf\u7684\u6027\u80fd\u4f18\u5316\u3001\u5b89\u5168\u9632\u62a4\u548c\u6545\u969c\u8bca\u65ad\u5e26\u6765\u4e86\u9769\u547d\u6027\u7684\u7a81\u7834\u3002<\/p>\n\n\n\n\n

eBPF\u6700\u521d\u88ab\u8bbe\u8ba1\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u7684\u8fc7\u6ee4\u548c\u5206\u6790\uff0c\u4f46\u968f\u7740\u5176\u529f\u80fd\u7684\u4e0d\u65ad\u6269\u5c55\uff0c\u5b83\u5df2\u7ecf\u6f14\u53d8\u6210\u4e00\u4e2a\u5f3a\u5927\u7684\u5185\u6838\u7ea7\u7f16\u7a0b\u6846\u67b6\u3002\u901a\u8fc7eBPF\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u52a8\u6001\u5730\u5c06\u81ea\u5b9a\u4e49\u7a0b\u5e8f\u6ce8\u5165\u5230\u5185\u6838\u4e2d\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u884c\u4e3a\u7684\u6df1\u5ea6\u76d1\u63a7\u548c\u4f18\u5316\u3002\u8fd9\u79cd\u80fd\u529b\u4f7f\u5f97eBPF\u5728\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\u5c55\u73b0\u51fa\u5de8\u5927\u7684\u6f5c\u529b\u3002<\/p>\n\n\n\n\n

1. \u6027\u80fd\u76d1\u63a7\u4e0e\u4f18\u5316<\/strong><\/h3>\n\n\n\n\n

\u5728\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u6027\u80fd\u74f6\u9888\u5f80\u5f80\u96be\u4ee5\u5b9a\u4f4d\uff0c\u5c24\u5176\u662f\u5728\u5206\u5e03\u5f0f\u73af\u5883\u4e0b\uff0c\u6570\u636e\u8bfb\u5199\u3001\u7f51\u7edc\u4f20\u8f93\u548c\u5b58\u50a8\u8bbe\u5907\u7684\u4ea4\u4e92\u90fd\u53ef\u80fd\u6210\u4e3a\u6027\u80fd\u7684\u5236\u7ea6\u56e0\u7d20\u3002eBPF\u901a\u8fc7\u5728\u5185\u6838\u5c42\u9762\u5b9e\u65f6\u91c7\u96c6\u7cfb\u7edf\u8c03\u7528\u3001\u6587\u4ef6\u64cd\u4f5c\u548c\u7f51\u7edc\u6d41\u91cf\u7b49\u5173\u952e\u6307\u6807\uff0c\u4e3a\u6027\u80fd\u5206\u6790\u63d0\u4f9b\u4e86\u524d\u6240\u672a\u6709\u7684\u7ec6\u7c92\u5ea6\u6570\u636e<\/strong>\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u8ddf\u8e2a\u6587\u4ef6\u7cfb\u7edf\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u5206\u6790\u5ef6\u8fdf\u5206\u5e03\uff0c\u8bc6\u522b\u51fa\u70ed\u70b9\u6587\u4ef6\u6216\u5f02\u5e38\u8bbf\u95ee\u6a21\u5f0f\u3002\u901a\u8fc7\u5c06\u8fd9\u4e9b\u6570\u636e\u4e0e\u4e0a\u5c42\u5e94\u7528\u7684\u884c\u4e3a\u5173\u8054\u8d77\u6765\uff0c\u8fd0\u7ef4\u56e2\u961f\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u6027\u80fd\u95ee\u9898\u7684\u6839\u6e90\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u5b58\u50a8\u7cfb\u7edf\u7684\u7f13\u5b58\u7b56\u7565\uff0c\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u7f13\u5b58\u5927\u5c0f\u6216\u66ff\u6362\u7b97\u6cd5\uff0c\u663e\u8457\u63d0\u5347\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n\n

2. \u5b89\u5168\u9632\u62a4\u4e0e\u5165\u4fb5\u68c0\u6d4b<\/strong><\/h3>\n\n\n\n\n

\u4e91\u5b58\u50a8\u7cfb\u7edf\u4f5c\u4e3a\u4f01\u4e1a\u6570\u636e\u7684\u6838\u5fc3\u8f7d\u4f53\uff0c\u9762\u4e34\u7740\u4e25\u5cfb\u7684\u5b89\u5168\u6311\u6218\u3002\u4f20\u7edf\u7684\u5b89\u5168\u9632\u62a4\u624b\u6bb5\u5f80\u5f80\u4f9d\u8d56\u4e8e\u5916\u90e8\u7684\u9632\u706b\u5899\u6216\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff0c\u96be\u4ee5\u5e94\u5bf9\u5185\u6838\u7ea7\u522b\u7684\u653b\u51fb\u3002eBPF\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u8fd0\u884c\u5b89\u5168\u68c0\u6d4b\u7a0b\u5e8f\uff0c\u80fd\u591f\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u7684\u654f\u611f\u64cd\u4f5c\uff0c\u5982\u6587\u4ef6\u8bbf\u95ee\u3001\u8fdb\u7a0b\u521b\u5efa\u548c\u7f51\u7edc\u8fde\u63a5\u7b49<\/strong>\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u68c0\u6d4b\u5230\u5f02\u5e38\u7684\u6587\u4ef6\u8bfb\u5199\u884c\u4e3a\uff0c\u5982\u672a\u7ecf\u6388\u6743\u7684\u6587\u4ef6\u5220\u9664\u6216\u52a0\u5bc6\u64cd\u4f5c\uff0c\u4ece\u800c\u53ca\u65f6\u963b\u6b62\u52d2\u7d22\u8f6f\u4ef6\u7684\u653b\u51fb\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u7528\u4e8e\u76d1\u63a7\u5bb9\u5668\u7684\u884c\u4e3a\uff0c\u9632\u6b62\u5bb9\u5668\u9003\u9038\u6216\u6076\u610f\u8fdb\u7a0b\u7684\u542f\u52a8\u3002\u8fd9\u79cd\u5185\u6838\u7ea7\u522b\u7684\u5b89\u5168\u9632\u62a4\u80fd\u529b\uff0c\u4f7f\u5f97eBPF\u6210\u4e3a\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u5b89\u5168\u5de5\u5177\u3002<\/p>\n\n\n\n\n

3. \u6545\u969c\u8bca\u65ad\u4e0e\u6839\u56e0\u5206\u6790<\/strong><\/h3>\n\n\n\n\n

\u5728\u590d\u6742\u7684\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u6545\u969c\u7684\u53d1\u751f\u5f80\u5f80\u6d89\u53ca\u591a\u4e2a\u7ec4\u4ef6\u548c\u5c42\u6b21\uff0c\u4f20\u7edf\u7684\u65e5\u5fd7\u5206\u6790\u548c\u8c03\u8bd5\u5de5\u5177\u96be\u4ee5\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u7684\u6839\u672c\u539f\u56e0\u3002eBPF\u901a\u8fc7\u63d0\u4f9b\u5b9e\u65f6\u7684\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a\u548c\u5185\u6838\u4e8b\u4ef6\u76d1\u63a7\uff0c\u4e3a\u6545\u969c\u8bca\u65ad\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301<\/strong>\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0c\u5f53\u5b58\u50a8\u7cfb\u7edf\u51fa\u73b0\u6027\u80fd\u4e0b\u964d\u6216\u6570\u636e\u4e22\u5931\u65f6\uff0ceBPF\u53ef\u4ee5\u6355\u83b7\u5230\u76f8\u5173\u7684\u7cfb\u7edf\u8c03\u7528\u548c\u5185\u6838\u4e8b\u4ef6\uff0c\u5e2e\u52a9\u8fd0\u7ef4\u56e2\u961f\u5feb\u901f\u8bc6\u522b\u51fa\u95ee\u9898\u7684\u6839\u6e90\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u4e0e\u5206\u5e03\u5f0f\u8ffd\u8e2a\u7cfb\u7edf\u96c6\u6210\uff0c\u5c06\u5185\u6838\u7ea7\u522b\u7684\u76d1\u63a7\u6570\u636e\u4e0e\u5e94\u7528\u5c42\u7684\u8ffd\u8e2a\u4fe1\u606f\u7ed3\u5408\u8d77\u6765\uff0c\u5b9e\u73b0\u7aef\u5230\u7aef\u7684\u6545\u969c\u5206\u6790\u3002<\/p>\n\n\n\n\n

4. \u8d44\u6e90\u7ba1\u7406\u4e0e\u8c03\u5ea6\u4f18\u5316<\/strong><\/h3>\n\n\n\n\n

\u5728\u4e91\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u8d44\u6e90\u7684\u6709\u6548\u7ba1\u7406\u548c\u8c03\u5ea6\u662f\u786e\u4fdd\u7cfb\u7edf\u9ad8\u6548\u8fd0\u884c\u7684\u5173\u952e\u3002eBPF\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7CPU\u3001\u5185\u5b58\u3001\u78c1\u76d8\u548c\u7f51\u7edc\u7b49\u8d44\u6e90\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u4e3a\u8d44\u6e90\u8c03\u5ea6\u63d0\u4f9b\u4e86\u7cbe\u51c6\u7684\u6570\u636e\u652f\u6301<\/strong>\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u5206\u6790\u5b58\u50a8\u8282\u70b9\u7684\u8d1f\u8f7d\u60c5\u51b5\uff0c\u52a8\u6001\u8c03\u6574\u6570\u636e\u5206\u5e03\u548c\u526f\u672c\u7b56\u7565\uff0c\u907f\u514d\u70ed\u70b9\u8282\u70b9\u7684\u51fa\u73b0\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u7f51\u7edc\u5e26\u5bbd\u7684\u5206\u914d\uff0c\u786e\u4fdd\u5173\u952e\u4e1a\u52a1\u7684\u7f51\u7edc\u4f20\u8f93\u4f18\u5148\u7ea7\u3002\u8fd9\u79cd\u57fa\u4e8e\u5b9e\u65f6\u6570\u636e\u7684\u8d44\u6e90\u7ba1\u7406\u80fd\u529b\uff0c\u4f7f\u5f97\u4e91\u5b58\u50a8\u7cfb\u7edf\u80fd\u591f\u66f4\u597d\u5730\u5e94\u5bf9\u52a8\u6001\u53d8\u5316\u7684\u4e1a\u52a1\u9700\u6c42\u3002<\/p>\n\n\n\n\n

5. \u5bb9\u5668\u5316\u5b58\u50a8\u7cfb\u7edf\u7684\u652f\u6301<\/strong><\/h3>\n\n\n\n\n

\u968f\u7740\u5bb9\u5668\u6280\u672f\u7684\u666e\u53ca\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u4e91\u5b58\u50a8\u7cfb\u7edf\u5f00\u59cb\u91c7\u7528\u5bb9\u5668\u5316\u90e8\u7f72\u3002\u7136\u800c\uff0c\u5bb9\u5668\u5316\u73af\u5883\u4e0b\u7684\u5b58\u50a8\u7ba1\u7406\u9762\u4e34\u7740\u72ec\u7279\u7684\u6311\u6218\uff0c\u5982\u5b58\u50a8\u5377\u7684\u52a8\u6001\u6302\u8f7d\u3001\u7f51\u7edc\u9694\u79bb\u548c\u6027\u80fd\u9694\u79bb\u7b49\u3002eBPF\u901a\u8fc7\u63d0\u4f9b\u5bb9\u5668\u7ea7\u522b\u7684\u76d1\u63a7\u548c\u4f18\u5316\u80fd\u529b\uff0c\u4e3a\u5bb9\u5668\u5316\u5b58\u50a8\u7cfb\u7edf\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301<\/strong>\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u76d1\u63a7\u5bb9\u5668\u7684\u5b58\u50a8\u5377\u8bbf\u95ee\u884c\u4e3a\uff0c\u5206\u6790\u5176\u6027\u80fd\u7279\u5f81\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u9700\u6c42\u52a8\u6001\u8c03\u6574\u5b58\u50a8\u8d44\u6e90\u7684\u5206\u914d\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u5bb9\u5668\u7f51\u7edc\u7684\u6027\u80fd\uff0c\u901a\u8fc7\u51cf\u5c11\u7f51\u7edc\u5ef6\u8fdf\u548c\u63d0\u5347\u5e26\u5bbd\u5229\u7528\u7387\uff0c\u663e\u8457\u63d0\u5347\u5bb9\u5668\u5316\u5b58\u50a8\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n\n

6. \u6570\u636e\u4e00\u81f4\u6027\u4e0e\u53ef\u9760\u6027\u4fdd\u969c<\/strong><\/h3>\n\n\n\n\n

\u5728\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u6570\u636e\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002eBPF\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u6570\u636e\u526f\u672c\u7684\u540c\u6b65\u72b6\u6001\u548c\u4e00\u81f4\u6027\u534f\u8bae\u7684\u8fd0\u884c\u60c5\u51b5\uff0c\u4e3a\u6570\u636e\u53ef\u9760\u6027\u63d0\u4f9b\u4e86\u6709\u529b\u7684\u4fdd\u969c<\/strong>\u3002<\/p>\n\n\n\n\n

\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u68c0\u6d4b\u5230\u6570\u636e\u526f\u672c\u4e4b\u95f4\u7684\u5ef6\u8fdf\u6216\u4e22\u5931\uff0c\u53ca\u65f6\u89e6\u53d1\u4fee\u590d\u64cd\u4f5c\uff0c\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u53ef\u4ee5\u7528\u4e8e\u76d1\u63a7\u5206\u5e03\u5f0f\u9501\u7684\u4f7f\u7528\u60c5\u51b5\uff0c\u9632\u6b62\u6b7b\u9501\u6216\u7ade\u4e89\u6761\u4ef6\u7684\u53d1\u751f\u3002\u8fd9\u79cd\u5b9e\u65f6\u76d1\u63a7\u548c\u81ea\u52a8\u4fee\u590d\u7684\u80fd\u529b\uff0c\u4f7f\u5f97eBPF\u5728\u4fdd\u969c\u6570\u636e\u53ef\u9760\u6027\u65b9\u9762\u53d1\u6325\u4e86\u91cd\u8981\u4f5c\u7528\u3002<\/p>\n\n\n\n\n

7. \u672a\u6765\u5c55\u671b<\/strong><\/h3>\n\n\n\n\n

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