{"id":19884,"date":"2024-11-06T17:28:18","date_gmt":"2024-11-06T09:28:18","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=19884"},"modified":"2024-11-06T17:28:18","modified_gmt":"2024-11-06T09:28:18","slug":"ebpf%e6%a6%82%e8%bf%b0%ef%bc%9a%e4%b8%ba%e7%b3%bb%e7%bb%9f%e8%b0%83%e8%af%95%e5%b8%a6%e6%9d%a5%e7%9a%84%e4%be%bf%e5%88%a9","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/19884.html","title":{"rendered":"eBPF\u6982\u8ff0\uff1a\u4e3a\u7cfb\u7edf\u8c03\u8bd5\u5e26\u6765\u7684\u4fbf\u5229"},"content":{"rendered":"

\t\t\t\teBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6280\u672f\uff0c\u6700\u521d\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\uff0c\u4f46\u73b0\u5728\u5df2\u7ecf\u6269\u5c55\u5230\u7cfb\u7edf\u76d1\u63a7\u3001\u6027\u80fd\u5206\u6790\u548c\u5b89\u5168\u7b49\u9886\u57df\u3002eBPF<\/a>\u7684\u51fa\u73b0\u4e3a\u7cfb\u7edf\u8c03\u8bd5\u5e26\u6765\u4e86\u6781\u5927\u7684\u4fbf\u5229\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u548c\u7ba1\u7406\u5458\u80fd\u591f\u66f4\u6df1\u5165\u5730\u4e86\u89e3\u7cfb\u7edf\u7684\u8fd0\u884c\u72b6\u6001\uff0c\u5feb\u901f\u5b9a\u4f4d\u548c\u89e3\u51b3\u5404\u79cd\u95ee\u9898\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdeBPF\u7684\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u53ca\u5176\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u7684\u5177\u4f53\u4f18\u52bf\u3002<\/p>\n\n\n\n\n

eBPF\u7684\u57fa\u672c\u539f\u7406<\/h3>\n\n\n\n\n

eBPF\u7684\u6838\u5fc3\u601d\u60f3\u662f\u5c06\u7528\u6237\u7f16\u5199\u7684\u7a0b\u5e8f\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\uff0c\u5e76\u5728\u7279\u5b9a\u7684\u94a9\u5b50\u70b9\uff08hook points\uff09\u6267\u884c\u3002\u8fd9\u4e9b\u94a9\u5b50\u70b9\u53ef\u4ee5\u662f\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u4e8b\u4ef6\u3001\u8c03\u5ea6\u5668\u4e8b\u4ef6\u7b49\u3002eBPF\u7a0b\u5e8f\u5728\u6267\u884c\u524d\u4f1a\u7ecf\u8fc7\u4e25\u683c\u7684\u9a8c\u8bc1\uff0c\u4ee5\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u7a33\u5b9a\u6027\u9020\u6210\u5f71\u54cd\u3002<\/p>\n\n\n\n\n\n\n\n\n

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

eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u6d41\u7a0b<\/h4>\n\n\n\n\n
    \n\n\n
  1. \u7f16\u5199eBPF\u7a0b\u5e8f<\/strong>\uff1a\u4f7f\u7528C\u8bed\u8a00\u6216\u5176\u4ed6\u9ad8\u7ea7\u8bed\u8a00\u7f16\u5199eBPF\u7a0b\u5e8f\u3002<\/li>\n\n\n\n\n
  2. \u7f16\u8bd1<\/strong>\uff1a\u5c06eBPF\u7a0b\u5e8f\u7f16\u8bd1\u6210eBPF\u5b57\u8282\u7801\u3002<\/li>\n\n\n\n\n
  3. \u52a0\u8f7d<\/strong>\uff1a\u901a\u8fc7\u7528\u6237\u7a7a\u95f4\u5de5\u5177\uff08\u5982bcc\u3001libbpf\u7b49\uff09\u5c06eBPF\u5b57\u8282\u7801\u52a0\u8f7d\u5230\u5185\u6838\u3002<\/li>\n\n\n\n\n
  4. \u9a8c\u8bc1<\/strong>\uff1a\u5185\u6838\u7684eBPF\u9a8c\u8bc1\u5668\u5bf9\u52a0\u8f7d\u7684\u7a0b\u5e8f\u8fdb\u884c\u5b89\u5168\u6027\u68c0\u67e5\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83\u6216\u8d44\u6e90\u8017\u5c3d\u3002<\/li>\n\n\n\n\n
  5. \u6267\u884c<\/strong>\uff1a\u901a\u8fc7\u94a9\u5b50\u70b9\u89e6\u53d1eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u3002<\/li>\n\n\n\n\n
  6. \u6570\u636e\u6536\u96c6<\/strong>\uff1aeBPF\u7a0b\u5e8f\u53ef\u4ee5\u5c06\u6570\u636e\u5b58\u50a8\u5728\u5185\u6838\u7684\u6620\u5c04\uff08map\uff09\u4e2d\uff0c\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u53ef\u4ee5\u8bfb\u53d6\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u5206\u6790\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    eBPF\u7684\u5e94\u7528\u573a\u666f<\/h3>\n\n\n\n\n

    eBPF\u7684\u5e94\u7528\u573a\u666f\u975e\u5e38\u5e7f\u6cdb\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n\n

    1. \u7f51\u7edc\u76d1\u63a7\u4e0e\u8c03\u8bd5<\/h4>\n\n\n\n\n

    eBPF\u53ef\u4ee5\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u7684\u6355\u83b7\u3001\u8fc7\u6ee4\u548c\u5206\u6790\u3002\u901a\u8fc7\u5728\u5185\u6838\u7684\u7f51\u7edc\u6808\u4e2d\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u7f51\u7edc\u6d41\u91cf\u7684\u5b9e\u65f6\u76d1\u63a7\u548c\u8c03\u8bd5\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528eBPF\u6765\u8ffd\u8e2a\u7279\u5b9a\u7aef\u53e3\u7684\u6d41\u91cf\u3001\u68c0\u6d4b\u7f51\u7edc\u653b\u51fb\u7b49\u3002<\/p>\n\n\n\n\n

    2. \u7cfb\u7edf\u6027\u80fd\u5206\u6790<\/h4>\n\n\n\n\n

    eBPF\u53ef\u4ee5\u7528\u4e8e\u7cfb\u7edf\u6027\u80fd\u7684\u5b9e\u65f6\u76d1\u63a7\u548c\u5206\u6790\u3002\u901a\u8fc7\u5728\u7cfb\u7edf\u8c03\u7528\u7684\u94a9\u5b50\u70b9\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8ffd\u8e2a\u7cfb\u7edf\u8c03\u7528\u7684\u9891\u7387\u3001\u8017\u65f6\u7b49\u4fe1\u606f\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u8bc6\u522b\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n\n

    3. \u5b89\u5168\u76d1\u63a7<\/h4>\n\n\n\n\n

    eBPF\u53ef\u4ee5\u7528\u4e8e\u5b89\u5168\u76d1\u63a7\u548c\u5165\u4fb5\u68c0\u6d4b\u3002\u901a\u8fc7\u76d1\u63a7\u7cfb\u7edf\u7684\u5173\u952e\u4e8b\u4ef6\uff08\u5982\u6587\u4ef6\u64cd\u4f5c\u3001\u8fdb\u7a0b\u521b\u5efa\u7b49\uff09\uff0c\u53ef\u4ee5\u53ca\u65f6\u53d1\u73b0\u5f02\u5e38\u884c\u4e3a\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n\n

    4. \u8c03\u5ea6\u5668\u8c03\u8bd5<\/h4>\n\n\n\n\n

    eBPF\u53ef\u4ee5\u7528\u4e8e\u8c03\u5ea6\u5668\u7684\u8c03\u8bd5\u548c\u4f18\u5316\u3002\u901a\u8fc7\u5728\u8c03\u5ea6\u5668\u7684\u94a9\u5b50\u70b9\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8ffd\u8e2a\u8fdb\u7a0b\u7684\u8c03\u5ea6\u60c5\u51b5\uff0c\u5206\u6790\u8c03\u5ea6\u5668\u7684\u6027\u80fd\u548c\u516c\u5e73\u6027\u3002<\/p>\n\n\n\n\n

    eBPF\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u7684\u4f18\u52bf<\/h3>\n\n\n\n\n

    eBPF\u6280\u672f\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u5177\u6709\u591a\u65b9\u9762\u7684\u4f18\u52bf\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n\n

    1. \u5b9e\u65f6\u6027<\/h4>\n\n\n\n\n

    eBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u76f4\u63a5\u6267\u884c\uff0c\u80fd\u591f\u5b9e\u65f6\u6355\u83b7\u548c\u5206\u6790\u7cfb\u7edf\u4e8b\u4ef6\u3002\u76f8\u6bd4\u4e8e\u4f20\u7edf\u7684\u8c03\u8bd5\u65b9\u6cd5\uff08\u5982\u65e5\u5fd7\u5206\u6790\u3001\u4e8b\u540e\u8c03\u8bd5\u7b49\uff09\uff0ceBPF\u80fd\u591f\u63d0\u4f9b\u66f4\u53ca\u65f6\u7684\u4fe1\u606f\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u3002<\/p>\n\n\n\n\n

    2. \u9ad8\u6548\u6027<\/h4>\n\n\n\n\n

    eBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u6267\u884c\uff0c\u907f\u514d\u4e86\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u9891\u7e41\u7684\u6570\u636e\u4ea4\u6362\uff0c\u51cf\u5c11\u4e86\u7cfb\u7edf\u5f00\u9500\u3002\u540c\u65f6\uff0ceBPF\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u975e\u5e38\u9ad8\uff0c\u5bf9\u7cfb\u7edf\u6027\u80fd\u7684\u5f71\u54cd\u6781\u5c0f\u3002<\/p>\n\n\n\n\n

    3. \u7075\u6d3b\u6027<\/h4>\n\n\n\n\n

    eBPF\u7a0b\u5e8f\u53ef\u4ee5\u52a8\u6001\u52a0\u8f7d\u548c\u5378\u8f7d\uff0c\u4e0d\u9700\u8981\u91cd\u542f\u7cfb\u7edf\u3002\u8fd9\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u9700\u8981\u7075\u6d3b\u5730\u6dfb\u52a0\u6216\u4fee\u6539\u8c03\u8bd5\u903b\u8f91\uff0c\u6781\u5927\u5730\u63d0\u5347\u4e86\u8c03\u8bd5\u7684\u7075\u6d3b\u6027\u3002<\/p>\n\n\n\n\n

    4. \u5b89\u5168\u6027<\/h4>\n\n\n\n\n

    eBPF\u7a0b\u5e8f\u5728\u52a0\u8f7d\u524d\u4f1a\u7ecf\u8fc7\u4e25\u683c\u7684\u9a8c\u8bc1\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u7a33\u5b9a\u6027\u9020\u6210\u5f71\u54cd\u3002\u76f8\u6bd4\u4e8e\u76f4\u63a5\u4fee\u6539\u5185\u6838\u4ee3\u7801\uff0c\u4f7f\u7528eBPF\u8fdb\u884c\u8c03\u8bd5\u66f4\u52a0\u5b89\u5168\u53ef\u9760\u3002<\/p>\n\n\n\n\n

    5. \u7ec6\u7c92\u5ea6\u63a7\u5236<\/h4>\n\n\n\n\n

    eBPF\u7a0b\u5e8f\u53ef\u4ee5\u9488\u5bf9\u7279\u5b9a\u7684\u7cfb\u7edf\u4e8b\u4ef6\u8fdb\u884c\u76d1\u63a7\u548c\u5206\u6790\uff0c\u63d0\u4f9b\u4e86\u7ec6\u7c92\u5ea6\u7684\u63a7\u5236\u80fd\u529b\u3002\u8fd9\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u7cbe\u786e\u5730\u5b9a\u4f4d\u95ee\u9898\uff0c\u907f\u514d\u5197\u4f59\u4fe1\u606f\u7684\u5e72\u6270\u3002<\/p>\n\n\n\n\n

    eBPF\u5de5\u5177\u94fe<\/h3>\n\n\n\n\n

    \u4e3a\u4e86\u66f4\u597d\u5730\u5229\u7528eBPF\u6280\u672f\u8fdb\u884c\u7cfb\u7edf\u8c03\u8bd5\uff0c\u793e\u533a\u5df2\u7ecf\u5f00\u53d1\u4e86\u4e00\u7cfb\u5217\u7684\u5de5\u5177\u94fe\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n\n\n\n\n

    1. BCC\uff08BPF Compiler Collection\uff09<\/h4>\n\n\n\n\n

    BCC\u662f\u4e00\u4e2a\u57fa\u4e8eeBPF\u7684\u5de5\u5177\u96c6\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5e93\u548c\u5de5\u5177\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u7f16\u5199\u548c\u90e8\u7f72eBPF\u7a0b\u5e8f\u3002BCC\u652f\u6301\u591a\u79cd\u8bed\u8a00\uff0c\u5305\u62ecC\u3001Python\u7b49\uff0c\u6781\u5927\u5730\u65b9\u4fbf\u4e86eBPF\u7a0b\u5e8f\u7684\u5f00\u53d1\u3002<\/p>\n\n\n\n\n

    2. libbpf<\/h4>\n\n\n\n\n

    libbpf\u662f\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u7684eBPF\u5e93\uff0c\u4e3b\u8981\u7528\u4e8e\u52a0\u8f7d\u548c\u64cd\u4f5ceBPF\u7a0b\u5e8f\u3002\u76f8\u6bd4\u4e8eBCC\uff0clibbpf\u66f4\u52a0\u8f7b\u91cf\uff0c\u9002\u5408\u9700\u8981\u9ad8\u6027\u80fd\u7684\u573a\u666f\u3002<\/p>\n\n\n\n\n

    3. bpftrace<\/h4>\n\n\n\n\n

    bpftrace\u662f\u4e00\u4e2a\u57fa\u4e8eeBPF\u7684\u9ad8\u6548\u8ffd\u8e2a\u5de5\u5177\uff0c\u7c7b\u4f3c\u4e8eawk\u3001sed\u7b49\u6587\u672c\u5904\u7406\u5de5\u5177\u3002bpftrace\u63d0\u4f9b\u4e86\u7b80\u6d01\u7684\u8bed\u6cd5\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u5feb\u901f\u7f16\u5199eBPF\u8ffd\u8e2a\u811a\u672c\u3002<\/p>\n\n\n\n\n

    eBPF\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u7684\u5b9e\u9645\u5e94\u7528<\/h3>\n\n\n\n\n

    \u4e0b\u9762\u901a\u8fc7\u51e0\u4e2a\u5177\u4f53\u7684\u6848\u4f8b\uff0c\u5c55\u793aeBPF\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n\n\n\n\n

    \u6848\u4f8b\u4e00\uff1a\u7f51\u7edc\u5ef6\u8fdf\u5206\u6790<\/h4>\n\n\n\n\n

    \u5047\u8bbe\u67d0\u4e2a\u670d\u52a1\u51fa\u73b0\u4e86\u7f51\u7edc\u5ef6\u8fdf\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528eBPF\u6765\u8ffd\u8e2a\u7f51\u7edc\u6570\u636e\u5305\u7684\u4f20\u8f93\u60c5\u51b5\u3002\u901a\u8fc7\u5728\u5185\u6838\u7684\u7f51\u7edc\u6808\u4e2d\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8bb0\u5f55\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u53d1\u9001\u548c\u63a5\u6536\u65f6\u95f4\uff0c\u4ece\u800c\u5206\u6790\u7f51\u7edc\u5ef6\u8fdf\u7684\u6765\u6e90\u3002<\/p>\n\n\n\n\n

    #include <bcc\/proto.h>
    \n
    \nint trace_packet(struct __sk_buff *skb) {
    \n    u64 timestamp = bpf_ktime_get_ns();
    \n    bpf_trace_printk("Packet received at %llu\\n", timestamp);
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    \u4f7f\u7528BCC\u5de5\u5177\u52a0\u8f7d\u4e0a\u8ff0eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u7f51\u7edc\u6570\u636e\u5305\u7684\u63a5\u6536\u65f6\u95f4\uff0c\u5e2e\u52a9\u5b9a\u4f4d\u7f51\u7edc\u5ef6\u8fdf\u95ee\u9898\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\u4e8c\uff1a\u7cfb\u7edf\u8c03\u7528\u5206\u6790<\/h4>\n\n\n\n\n
    \u5047\u8bbe\u67d0\u4e2a\u670d\u52a1\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4e86\u6027\u80fd\u74f6\u9888\uff0c\u53ef\u4ee5\u4f7f\u7528eBPF\u6765\u8ffd\u8e2a\u7cfb\u7edf\u8c03\u7528\u7684\u6267\u884c\u60c5\u51b5\u3002\u901a\u8fc7\u5728\u7cfb\u7edf\u8c03\u7528\u7684\u94a9\u5b50\u70b9\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8bb0\u5f55\u6bcf\u4e2a\u7cfb\u7edf\u8c03\u7528\u7684\u6267\u884c\u65f6\u95f4\u548c\u9891\u7387\u3002<\/p>\n\n\n\n\n
    #include <uapi\/linux\/ptrace.h>
    \n#include <linux\/sched.h>
    \n
    \nBPF_HASH(start, u32);
    \n
    \nint syscall_enter(struct pt_regs *ctx) {
    \n    u32 pid = bpf_get_current_pid_tgid();
    \n    u64 timestamp = bpf_ktime_get_ns();
    \n    start.update(&pid, &timestamp);
    \n    return 0;
    \n}
    \n
    \nint syscall_exit(struct pt_regs *ctx) {
    \n    u32 pid = bpf_get_current_pid_tgid();
    \n    u64 *tsp = start.lookup(&pid);
    \n    if (tsp != 0) {
    \n        u64 duration = bpf_ktime_get_ns() - *tsp;
    \n        bpf_trace_printk("Syscall duration: %llu\\n", duration);
    \n        start.delete(&pid);
    \n    }
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    \u4f7f\u7528BCC\u5de5\u5177\u52a0\u8f7d\u4e0a\u8ff0eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u7cfb\u7edf\u8c03\u7528\u7684\u6267\u884c\u65f6\u95f4\uff0c\u5e2e\u52a9\u8bc6\u522b\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n\n
    \u6848\u4f8b\u4e09\uff1a\u6587\u4ef6\u64cd\u4f5c\u76d1\u63a7<\/h4>\n\n\n\n\n
    \u5047\u8bbe\u9700\u8981\u76d1\u63a7\u67d0\u4e2a\u670d\u52a1\u7684\u6587\u4ef6\u64cd\u4f5c\u884c\u4e3a\uff0c\u53ef\u4ee5\u4f7f\u7528eBPF\u6765\u8ffd\u8e2a\u6587\u4ef6\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u901a\u8fc7\u5728\u6587\u4ef6\u7cfb\u7edf\u7684\u94a9\u5b50\u70b9\u63d2\u5165eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8bb0\u5f55\u6bcf\u6b21\u6587\u4ef6\u64cd\u4f5c\u7684\u65f6\u95f4\u3001\u8def\u5f84\u7b49\u4fe1\u606f\u3002<\/p>\n\n\n\n\n
    #include <uapi\/linux\/ptrace.h>
    \n#include <linux\/fs.h>
    \n
    \nint trace_file_open(struct pt_regs *ctx, struct file *file) {
    \n    char *filename = file->f_path.dentry->d_name.name;
    \n    bpf_trace_printk("File opened: %s\\n", filename);
    \n    return 0;
    \n}
    \n<\/code><\/pre>\n\n\n\n\n
    \u4f7f\u7528BCC\u5de5\u5177\u52a0\u8f7d\u4e0a\u8ff0eBPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u6587\u4ef6\u7684\u6253\u5f00\u64cd\u4f5c\uff0c\u5e2e\u52a9\u5206\u6790\u6587\u4ef6\u8bbf\u95ee\u884c\u4e3a\u3002<\/p>\n\n\n\n\n
    eBPF\u7684\u672a\u6765\u53d1\u5c55<\/h3>\n\n\n\n\n
    eBPF\u6280\u672f\u6b63\u5904\u4e8e\u5feb\u901f\u53d1\u5c55\u9636\u6bb5\uff0c\u672a\u6765\u6709\u671b\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u53d6\u5f97\u66f4\u5927\u7684\u7a81\u7834\uff1a<\/p>\n\n\n\n\n
    1. \u66f4\u5e7f\u6cdb\u7684\u5e94\u7528\u573a\u666f<\/h4>\n\n\n\n\n
    \u968f\u7740eBPF\u6280\u672f\u7684\u4e0d\u65ad\u6210\u719f\uff0c\u5176\u5e94\u7528\u573a\u666f\u5c06\u8fdb\u4e00\u6b65\u6269\u5c55\u3002\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u7528\u4e8e\u5bb9\u5668\u76d1\u63a7\u3001\u5fae\u670d\u52a1\u8ffd\u8e2a\u7b49\u9886\u57df\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u66f4\u597d\u5730\u7ba1\u7406\u548c\u4f18\u5316\u5206\u5e03\u5f0f\u7cfb\u7edf\u3002<\/p>\n\n\n\n\n
    2. \u66f4\u9ad8\u6548\u7684\u6267\u884c\u5f15\u64ce<\/h4>\n\n\n\n\n
    \u5185\u6838\u7684eBPF\u6267\u884c\u5f15\u64ce\u5c06\u8fdb\u4e00\u6b65\u4f18\u5316\uff0c\u63d0\u5347eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u3002\u540c\u65f6\uff0ceBPF\u9a8c\u8bc1\u5668\u7684\u529f\u80fd\u4e5f\u5c06\u4e0d\u65ad\u5b8c\u5584\uff0c\u786e\u4fddeBPF\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n\n
    3. \u66f4\u4e30\u5bcc\u7684\u5de5\u5177\u94fe<\/h4>\n\n\n\n\n
    \u793e\u533a\u5c06\u7ee7\u7eed\u5f00\u53d1\u548c\u5b8c\u5584eBPF\u5de5\u5177\u94fe\uff0c\u63d0\u4f9b\u66f4\u591a\u4fbf\u6377\u7684\u5de5\u5177\u548c\u5e93\uff0c\u964d\u4f4eeBPF\u7a0b\u5e8f\u7684\u5f00\u53d1\u95e8\u69db\u3002\u4f8b\u5982\uff0c\u672a\u6765\u7684eBPF\u5de5\u5177\u53ef\u80fd\u652f\u6301\u66f4\u9ad8\u7ea7\u7684\u8bed\u8a00\u7279\u6027\uff0c\u63d0\u4f9b\u66f4\u53cb\u597d\u7684\u8c03\u8bd5\u754c\u9762\u3002<\/p>\n\n\n\n\n
    4. \u66f4\u7d27\u5bc6\u7684\u751f\u6001\u6574\u5408<\/h4>\n\n\n\n\n
    eBPF\u6280\u672f\u5c06\u4e0e\u73b0\u6709\u7684\u7cfb\u7edf\u76d1\u63a7\u3001\u6027\u80fd\u5206\u6790\u5de5\u5177\u66f4\u7d27\u5bc6\u5730\u6574\u5408\uff0c\u5f62\u6210\u5b8c\u6574\u7684\u751f\u6001\u7cfb\u7edf\u3002\u4f8b\u5982\uff0ceBPF\u53ef\u4ee5\u4e0ePrometheus<\/a>\u3001Grafana\u7b49\u76d1\u63a7\u5de5\u5177\u7ed3\u5408\uff0c\u63d0\u4f9b\u66f4\u5168\u9762\u7684\u7cfb\u7edf\u89c6\u56fe\u3002<\/p>\n\n\n\n\n
    \u603b\u7ed3<\/h3>\n\n\n\n\n
    eBPF\u4f5c\u4e3a\u4e00\u79cd\u65b0\u5174\u7684\u6280\u672f\uff0c\u4e3a\u7cfb\u7edf\u8c03\u8bd5\u5e26\u6765\u4e86\u6781\u5927\u7684\u4fbf\u5229\u3002\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u6267\u884c\u7528\u6237\u7f16\u5199\u7684\u7a0b\u5e8f\uff0ceBPF\u80fd\u591f\u5b9e\u65f6\u6355\u83b7\u548c\u5206\u6790\u7cfb\u7edf\u4e8b\u4ef6\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u5b9a\u4f4d\u548c\u89e3\u51b3\u95ee\u9898\u3002eBPF\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u7684\u4f18\u52bf\u4e3b\u8981\u4f53\u73b0\u5728\u5b9e\u65f6\u6027\u3001\u9ad8\u6548\u6027\u3001\u7075\u6d3b\u6027\u3001\u5b89\u5168\u6027\u548c\u7ec6\u7c92\u5ea6\u63a7\u5236\u7b49\u65b9\u9762\u3002\u968f\u7740eBPF\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u5b8c\u5584\uff0c\u5176\u5728\u7cfb\u7edf\u8c03\u8bd5\u4e2d\u7684\u5e94\u7528\u5c06\u66f4\u52a0\u5e7f\u6cdb\u548c\u6df1\u5165\uff0c\u4e3a\u5f00\u53d1\u8005\u548c\u7ba1\u7406\u5458\u63d0\u4f9b\u66f4\u5f3a\u5927\u7684\u5de5\u5177\u548c\u624b\u6bb5\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":19885,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-19884","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\/19884","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=19884"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/19884\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/19885"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=19884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=19884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=19884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}