{"id":23892,"date":"2025-01-09T23:41:06","date_gmt":"2025-01-09T15:41:06","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=23892"},"modified":"2025-01-09T23:41:06","modified_gmt":"2025-01-09T15:41:06","slug":"ebpf%e5%a6%82%e4%bd%95%e5%b8%ae%e5%8a%a9%e4%bc%98%e5%8c%96%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e8%b0%83%e4%bc%98%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/23892.html","title":{"rendered":"eBPF\u5982\u4f55\u5e2e\u52a9\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\uff1f"},"content":{"rendered":"

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

\"eBPF\u5982\u4f55\u5e2e\u52a9\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\uff1f\"<\/p>\n\n<\/p>\n\n\n\n

\u5728\u5f53\u4eca\u7684\u6570\u5b57\u5316\u65f6\u4ee3\uff0c\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\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\u5ea6\u7684\u589e\u52a0\uff0c\u4f20\u7edf\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\u548c\u65b9\u6cd5\u5f80\u5f80\u96be\u4ee5\u6ee1\u8db3\u9700\u6c42\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u7684\u573a\u666f\u4e0b\u3002eBPF\uff08Extended Berkeley Packet Filter\uff09\u4f5c\u4e3a\u4e00\u79cd\u9769\u547d\u6027\u7684\u6280\u672f\uff0c\u6b63\u5728\u6084\u7136\u6539\u53d8\u8fd9\u4e00\u5c40\u9762\u3002\u5b83\u4e0d\u4ec5\u80fd\u591f\u6df1\u5165\u5185\u6838\u5c42\u9762\u8fdb\u884c\u9ad8\u6548\u7684\u6570\u636e\u91c7\u96c6\u548c\u5206\u6790\uff0c\u8fd8\u5177\u5907\u6781\u9ad8\u7684\u7075\u6d3b\u6027\u548c\u5b89\u5168\u6027\uff0c\u6210\u4e3a\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\u7684\u5229\u5668\u3002<\/p>\n\n\n\n\n

eBPF\uff1a\u6027\u80fd\u8c03\u4f18\u7684\u65b0\u8303\u5f0f<\/h3>\n\n\n\n\n

eBPF\u6700\u521d\u8bbe\u8ba1\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u7684\u8fc7\u6ee4\uff0c\u4f46\u5b83\u7684\u80fd\u529b\u8fdc\u4e0d\u6b62\u4e8e\u6b64\u3002\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u8fd0\u884c\u5b89\u5168\u7684\u3001\u53ef\u7f16\u7a0b\u7684\u4ee3\u7801\uff0ceBPF\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u884c\u4e3a\u7684\u6df1\u5ea6\u76d1\u63a7\u548c\u4f18\u5316\u3002\u8fd9\u79cd\u201c\u65e0\u4fb5\u5165\u5f0f\u201d\u7684\u7279\u6027\u4f7f\u5f97eBPF\u6210\u4e3a\u6027\u80fd\u8c03\u4f18\u7684\u7406\u60f3\u5de5\u5177<\/strong>\uff0c\u5c24\u5176\u662f\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u907f\u514d\u4e86\u4f20\u7edf\u65b9\u6cd5\u53ef\u80fd\u5e26\u6765\u7684\u7cfb\u7edf\u4e0d\u7a33\u5b9a\u98ce\u9669\u3002<\/p>\n\n\n\n\n

\u5185\u6838\u7ea7\u522b\u7684\u6027\u80fd\u6d1e\u5bdf<\/h3>\n\n\n\n\n

\u4f20\u7edf\u7684\u6027\u80fd\u8c03\u4f18\u5de5\u5177\u901a\u5e38\u4f9d\u8d56\u4e8e\u7528\u6237\u7a7a\u95f4\u7684\u76d1\u63a7\uff0c\u8fd9\u79cd\u65b9\u5f0f\u867d\u7136\u7b80\u5355\uff0c\u4f46\u5f80\u5f80\u65e0\u6cd5\u6355\u6349\u5230\u5185\u6838\u7ea7\u522b\u7684\u6027\u80fd\u74f6\u9888\u3002eBPF\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u76f4\u63a5\u8fd0\u884c\u4ee3\u7801\uff0c\u80fd\u591f\u5b9e\u65f6\u6355\u83b7\u548c\u5206\u6790\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u6d41\u91cf\u3001\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\u7b49\u5173\u952e\u6307\u6807<\/strong>\u3002\u4f8b\u5982\uff0c\u4f7f\u7528eBPF\u53ef\u4ee5\u8f7b\u677e\u8ffd\u8e2a\u67d0\u4e2a\u8fdb\u7a0b\u7684\u7cfb\u7edf\u8c03\u7528\u8017\u65f6\uff0c\u6216\u8005\u5206\u6790\u7f51\u7edc\u6570\u636e\u5305\u7684\u4f20\u8f93\u8def\u5f84\uff0c\u4ece\u800c\u5feb\u901f\u5b9a\u4f4d\u6027\u80fd\u95ee\u9898\u7684\u6839\u6e90\u3002<\/p>\n\n\n\n\n

\u52a8\u6001\u63d2\u6869\u4e0e\u4f4e\u5f00\u9500\u76d1\u63a7<\/h3>\n\n\n\n\n

eBPF\u7684\u53e6\u4e00\u4e2a\u663e\u8457\u4f18\u52bf\u662f\u5176\u52a8\u6001\u63d2\u6869\u80fd\u529b<\/strong>\u3002\u4f20\u7edf\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\u901a\u5e38\u9700\u8981\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\u52a0\u8f7d\u7279\u5b9a\u7684\u6a21\u5757\u6216\u4fee\u6539\u5185\u6838\u914d\u7f6e\uff0c\u800ceBPF\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u6ce8\u5165\u76d1\u63a7\u4ee3\u7801\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4e0d\u4ec5\u51cf\u5c11\u4e86\u7cfb\u7edf\u91cd\u542f\u7684\u9700\u6c42\uff0c\u8fd8\u663e\u8457\u964d\u4f4e\u4e86\u76d1\u63a7\u7684\u5f00\u9500\u3002eBPF\u7a0b\u5e8f\u7ecf\u8fc7JIT\uff08\u5373\u65f6\u7f16\u8bd1\uff09\u4f18\u5316\u540e\uff0c\u8fd0\u884c\u6548\u7387\u63a5\u8fd1\u539f\u751f\u4ee3\u7801\uff0c\u51e0\u4e4e\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u6027\u80fd\u9020\u6210\u989d\u5916\u8d1f\u62c5<\/strong>\u3002<\/p>\n\n\n\n\n

\u5b9e\u9645\u5e94\u7528\u573a\u666f<\/h3>\n\n\n\n\n
    \n\n\n
  1. \n\n

    \u7f51\u7edc\u6027\u80fd\u4f18\u5316<\/strong>
    \n\u5728\u7f51\u7edc\u5bc6\u96c6\u578b\u5e94\u7528\u4e2d\uff0ceBPF\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u6df1\u5165\u5206\u6790\u7f51\u7edc\u6808\u7684\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u901a\u8fc7eBPF\u53ef\u4ee5\u8ffd\u8e2aTCP\u8fde\u63a5\u7684\u5efa\u7acb\u548c\u5173\u95ed\u8fc7\u7a0b\uff0c\u8bc6\u522b\u7f51\u7edc\u5ef6\u8fdf\u7684\u6839\u6e90\uff0c\u751a\u81f3\u4f18\u5316\u6570\u636e\u5305\u7684\u4f20\u8f93\u8def\u5f84\u3002Facebook\u548cGoogle\u7b49\u79d1\u6280\u5de8\u5934\u5df2\u7ecf\u5c06eBPF\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5176\u7f51\u7edc\u57fa\u7840\u8bbe\u65bd\u7684\u6027\u80fd\u8c03\u4f18\u4e2d<\/strong>\uff0c\u663e\u8457\u63d0\u5347\u4e86\u7cfb\u7edf\u7684\u541e\u5410\u91cf\u548c\u54cd\u5e94\u901f\u5ea6\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

  2. \n\n

    \u5b58\u50a8\u6027\u80fd\u5206\u6790<\/strong>
    \n\u5728\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0cI\/O\u6027\u80fd\u5f80\u5f80\u662f\u74f6\u9888\u6240\u5728\u3002eBPF\u53ef\u4ee5\u76d1\u63a7\u6587\u4ef6\u7cfb\u7edf\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u5206\u6790\u78c1\u76d8I\/O\u7684\u5ef6\u8fdf\u548c\u541e\u5410\u91cf\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u4f18\u5316\u5b58\u50a8\u7b56\u7565\u3002\u4f8b\u5982\uff0c\u4f7f\u7528eBPF\u53ef\u4ee5\u8bc6\u522b\u51fa\u54ea\u4e9b\u6587\u4ef6\u6216\u8fdb\u7a0b\u5bfc\u81f4\u4e86\u8fc7\u591a\u7684\u78c1\u76d8I\/O\uff0c\u4ece\u800c\u6709\u9488\u5bf9\u6027\u5730\u8fdb\u884c\u8c03\u6574<\/strong>\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

  3. \n\n

    \u5e94\u7528\u6027\u80fd\u8c03\u4f18<\/strong>
    \n\u5bf9\u4e8e\u590d\u6742\u7684\u5e94\u7528\u7a0b\u5e8f\uff0ceBPF\u53ef\u4ee5\u63d0\u4f9b\u4ece\u5185\u6838\u5230\u7528\u6237\u7a7a\u95f4\u7684\u5168\u9762\u6027\u80fd\u6d1e\u5bdf\u3002\u901a\u8fc7\u7ed3\u5408eBPF\u548c\u7528\u6237\u7a7a\u95f4\u7684\u6027\u80fd\u5206\u6790\u5de5\u5177\uff08\u5982perf\u6216BPF Compiler Collection\uff09\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6784\u5efa\u4e00\u4e2a\u5b8c\u6574\u7684\u6027\u80fd\u5206\u6790\u94fe\u8def\uff0c\u5feb\u901f\u5b9a\u4f4d\u5e76\u89e3\u51b3\u6027\u80fd\u95ee\u9898\u3002<\/p>\n\n\n<\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u4e0e\u73b0\u6709\u5de5\u5177\u7684\u96c6\u6210<\/h3>\n\n\n\n\n

    eBPF\u5e76\u4e0d\u662f\u8981\u53d6\u4ee3\u73b0\u6709\u7684\u6027\u80fd\u8c03\u4f18\u5de5\u5177\uff0c\u800c\u662f\u4e0e\u5b83\u4eec\u5f62\u6210\u4e92\u8865\u3002\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u4e0ePrometheus\u3001Grafana\u7b49\u76d1\u63a7\u7cfb\u7edf\u96c6\u6210\uff0c\u63d0\u4f9b\u66f4\u7ec6\u7c92\u5ea6\u7684\u6027\u80fd\u6570\u636e<\/strong>\u3002\u6b64\u5916\uff0ceBPF\u8fd8\u652f\u6301\u4e0eLinux\u5185\u6838\u7684\u5176\u4ed6\u5b50\u7cfb\u7edf\uff08\u5982cgroups\u3001namespaces\uff09\u65e0\u7f1d\u534f\u4f5c\uff0c\u8fdb\u4e00\u6b65\u6269\u5c55\u5176\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n\n

    \u5b89\u5168\u6027\u4e0e\u53ef\u6269\u5c55\u6027<\/h3>\n\n\n\n\n

    eBPF\u7684\u8bbe\u8ba1\u5145\u5206\u8003\u8651\u4e86\u5b89\u5168\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u6240\u6709\u7684eBPF\u7a0b\u5e8f\u5728\u52a0\u8f7d\u5230\u5185\u6838\u4e4b\u524d\u90fd\u4f1a\u7ecf\u8fc7\u4e25\u683c\u7684\u9a8c\u8bc1\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u9020\u6210\u5371\u5bb3<\/strong>\u3002\u6b64\u5916\uff0ceBPF\u7684\u6a21\u5757\u5316\u8bbe\u8ba1\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u8f7b\u677e\u6269\u5c55\u5176\u529f\u80fd\uff0c\u6ee1\u8db3\u4e0d\u540c\u573a\u666f\u4e0b\u7684\u9700\u6c42\u3002<\/p>\n\n\n\n\n

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

    \u968f\u7740eBPF\u751f\u6001\u7cfb\u7edf\u7684\u4e0d\u65ad\u5b8c\u5584\uff0c\u5176\u5728\u6027\u80fd\u8c03\u4f18\u9886\u57df\u7684\u5e94\u7528\u524d\u666f\u6108\u53d1\u5e7f\u9614\u3002\u4ece\u4e91\u8ba1\u7b97\u5230\u8fb9\u7f18\u8ba1\u7b97\uff0c\u4ece\u7f51\u7edc\u4f18\u5316\u5230\u5b89\u5168\u76d1\u63a7\uff0ceBPF\u6b63\u5728\u6210\u4e3a\u73b0\u4ee3\u7cfb\u7edf\u67b6\u6784\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206<\/strong>\u3002\u5bf9\u4e8e\u5f00\u53d1\u8005\u548c\u8fd0\u7ef4\u4eba\u5458\u6765\u8bf4\uff0c\u638c\u63e1eBPF\u6280\u672f\u4e0d\u4ec5\u80fd\u591f\u63d0\u5347\u7cfb\u7edf\u6027\u80fd\uff0c\u8fd8\u80fd\u4e3a\u672a\u6765\u7684\u6280\u672f\u6311\u6218\u505a\u597d\u5145\u5206\u51c6\u5907\u3002<\/p>\n\n\n\n\n

    \u901a\u8fc7\u4ee5\u4e0a\u5206\u6790\u53ef\u4ee5\u770b\u51fa\uff0ceBPF\u51ed\u501f\u5176\u5f3a\u5927\u7684\u5185\u6838\u7ea7\u76d1\u63a7\u80fd\u529b\u3001\u4f4e\u5f00\u9500\u7684\u52a8\u6001\u63d2\u6869\u7279\u6027\u4ee5\u53ca\u5e7f\u6cdb\u7684\u5e94\u7528\u573a\u666f\uff0c\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\u7684\u65b9\u5f0f<\/strong>\u3002\u65e0\u8bba\u662f\u7f51\u7edc\u3001\u5b58\u50a8\u8fd8\u662f\u5e94\u7528\u6027\u80fd\u4f18\u5316\uff0ceBPF\u90fd\u5c55\u73b0\u51fa\u4e86\u65e0\u53ef\u66ff\u4ee3\u7684\u4ef7\u503c\u3002<\/p>\n\n\n ]]>\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

    \t\t\t\t\t\t<\/p>\n","protected":false},"author":5,"featured_media":23893,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-23892","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-discussion"],"_links":{"self":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/23892","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/comments?post=23892"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/23892\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/23893"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=23892"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=23892"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=23892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}