{"id":29320,"date":"2024-11-14T10:04:47","date_gmt":"2024-11-14T02:04:47","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=21285"},"modified":"2024-11-14T10:04:47","modified_gmt":"2024-11-14T02:04:47","slug":"ebpf%e6%8a%80%e6%9c%af%e6%8e%a2%e7%a7%98%ef%bc%9a%e6%8f%90%e5%8d%87%e6%96%87%e4%bb%b6%e7%b3%bb%e7%bb%9f%e6%80%a7%e8%83%bd%e7%9a%84%e6%96%b0%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/29320.html","title":{"rendered":"eBPF\u6280\u672f\u63a2\u79d8\uff1a\u63d0\u5347\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u7684\u65b0\u65b9\u6cd5"},"content":{"rendered":"

\t\t\t\teBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09\u6280\u672f\u8fd1\u5e74\u6765\u5728Linux\u5185\u6838\u9886\u57df\u5d2d\u9732\u5934\u89d2\uff0c\u6210\u4e3a\u63d0\u5347\u7cfb\u7edf\u6027\u80fd\u548c\u76d1\u63a7\u80fd\u529b\u7684\u91cd\u8981\u5de5\u5177\u3002\u7279\u522b\u662f\u5728\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u65b9\u9762\uff0ceBPF<\/a>\u5c55\u73b0\u51fa\u72ec\u7279\u7684\u4f18\u52bf\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8eBPF\u6280\u672f\u53ca\u5176\u5728\u63d0\u5347\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u65b9\u9762\u7684\u5e94\u7528\uff0c\u63ed\u793a\u8fd9\u4e00\u65b0\u65b9\u6cd5\u80cc\u540e\u7684\u539f\u7406\u548c\u5b9e\u8df5\u3002<\/p>\n\n\n\n\n

eBPF\u6280\u672f\u6982\u8ff0<\/h3>\n\n\n\n\n

eBPF\u662fBPF\uff08Berkeley Packet Filter\uff09\u7684\u6269\u5c55\u7248\u672c\uff0c\u6700\u521d\u7528\u4e8e\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\u3002\u968f\u7740\u6280\u672f\u7684\u53d1\u5c55\uff0ceBPF\u7684\u5e94\u7528\u8303\u56f4\u6269\u5c55\u5230\u5185\u6838\u76d1\u63a7\u3001\u6027\u80fd\u5206\u6790\u548c\u5b89\u5168\u7b49\u9886\u57df\u3002eBPF\u7684\u6838\u5fc3\u601d\u60f3\u662f\u5141\u8bb8\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u8fd0\u884c\u7ecf\u8fc7\u9a8c\u8bc1\u7684\u4ee3\u7801\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u5185\u6838\u884c\u4e3a\u7684\u52a8\u6001\u4fee\u6539\u548c\u76d1\u63a7\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\u7531\u7528\u6237\u7a7a\u95f4\u7f16\u5199\uff0c\u7ecf\u8fc7\u7f16\u8bd1\u548c\u9a8c\u8bc1\u540e\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\u3002\u8fd9\u4e9b\u7a0b\u5e8f\u53ef\u4ee5\u5728\u5185\u6838\u7684\u5404\u79cd\u94a9\u5b50\u70b9\uff08\u5982\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u4e8b\u4ef6\u7b49\uff09\u6267\u884c\uff0c\u6536\u96c6\u6570\u636e\u6216\u4fee\u6539\u884c\u4e3a\u3002eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u73af\u5883\u7531\u5185\u6838\u63d0\u4f9b\uff0c\u786e\u4fdd\u4e86\u5b89\u5168\u6027\u548c\u6548\u7387\u3002<\/p>\n\n\n\n\n

eBPF\u67b6\u6784\u4e0e\u5de5\u4f5c\u539f\u7406<\/h3>\n\n\n\n\n

eBPF\u67b6\u6784\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u7ec4\u4ef6\uff1a<\/p>\n\n\n\n\n

    \n\n\n
  1. eBPF\u7a0b\u5e8f<\/strong>\uff1a\u7528\u6237\u7f16\u5199\u7684C\u8bed\u8a00\u7a0b\u5e8f\uff0c\u7ecf\u8fc7\u7f16\u8bd1\u751f\u6210eBPF\u5b57\u8282\u7801\u3002<\/li>\n\n\n\n\n
  2. eBPF\u9a8c\u8bc1\u5668<\/strong>\uff1a\u5185\u6838\u4e2d\u7684\u7ec4\u4ef6\uff0c\u8d1f\u8d23\u9a8c\u8bc1eBPF\u7a0b\u5e8f\u7684\u5408\u6cd5\u6027\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bfc\u81f4\u5185\u6838\u5d29\u6e83\u6216\u5b89\u5168\u95ee\u9898\u3002<\/li>\n\n\n\n\n
  3. eBPF maps<\/strong>\uff1a\u7528\u4e8e\u5b58\u50a8eBPF\u7a0b\u5e8f\u6536\u96c6\u7684\u6570\u636e\uff0c\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5982\u54c8\u5e0c\u8868\u3001\u6570\u7ec4\u7b49\u3002<\/li>\n\n\n\n\n
  4. \u94a9\u5b50\u70b9\uff08Hooks\uff09<\/strong>\uff1a\u5185\u6838\u4e2d\u7684\u7279\u5b9a\u4f4d\u7f6e\uff0ceBPF\u7a0b\u5e8f\u53ef\u4ee5\u6302\u8f7d\u5728\u8fd9\u4e9b\u70b9\u4e0a\u6267\u884c\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    eBPF\u7a0b\u5e8f\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n

      \n\n\n
    1. \u7f16\u5199\u548c\u7f16\u8bd1<\/strong>\uff1a\u7528\u6237\u7f16\u5199eBPF\u7a0b\u5e8f\u5e76\u7f16\u8bd1\u751f\u6210eBPF\u5b57\u8282\u7801\u3002<\/li>\n\n\n\n\n
    2. \u52a0\u8f7d\u548c\u9a8c\u8bc1<\/strong>\uff1a\u901a\u8fc7\u7528\u6237\u7a7a\u95f4\u5de5\u5177\uff08\u5982bpftrace\u3001bcc\u7b49\uff09\u5c06\u5b57\u8282\u7801\u52a0\u8f7d\u5230\u5185\u6838\uff0ceBPF\u9a8c\u8bc1\u5668\u5bf9\u5176\u8fdb\u884c\u9a8c\u8bc1\u3002<\/li>\n\n\n\n\n
    3. \u6302\u8f7d\u548c\u6267\u884c<\/strong>\uff1a\u9a8c\u8bc1\u901a\u8fc7\u540e\uff0ceBPF\u7a0b\u5e8f\u6302\u8f7d\u5230\u6307\u5b9a\u7684\u94a9\u5b50\u70b9\uff0c\u5728\u5185\u6838\u4e8b\u4ef6\u89e6\u53d1\u65f6\u6267\u884c\u3002<\/li>\n\n\n\n\n
    4. \u6570\u636e\u6536\u96c6\u548c\u4ea4\u4e92<\/strong>\uff1aeBPF\u7a0b\u5e8f\u901a\u8fc7maps\u4e0e\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\u4ea4\u4e92\uff0c\u6536\u96c6\u548c\u4f20\u9012\u6570\u636e\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

      eBPF\u5728\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u4e2d\u7684\u5e94\u7528<\/h3>\n\n\n\n\n

      \u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u662f\u5f71\u54cd\u7cfb\u7edf\u6574\u4f53\u6027\u80fd\u7684\u91cd\u8981\u56e0\u7d20\u3002\u4f20\u7edf\u7684\u6587\u4ef6\u7cfb\u7edf\u4f18\u5316\u65b9\u6cd5\u5f80\u5f80\u4f9d\u8d56\u4e8e\u9759\u6001\u914d\u7f6e\u548c\u786c\u4ef6\u5347\u7ea7\uff0c\u96be\u4ee5\u5e94\u5bf9\u52a8\u6001\u53d8\u5316\u7684\u8d1f\u8f7d\u3002eBPF\u6280\u672f\u4e3a\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u4e86\u65b0\u7684\u601d\u8def\u548c\u65b9\u6cd5\u3002<\/p>\n\n\n\n\n

      1. I\/O\u8def\u5f84\u76d1\u63a7\u4e0e\u4f18\u5316<\/h4>\n\n\n\n\n

      eBPF\u7a0b\u5e8f\u53ef\u4ee5\u6302\u8f7d\u5230\u6587\u4ef6\u7cfb\u7edf\u7684I\/O\u8def\u5f84\u94a9\u5b50\u70b9\uff0c\u5b9e\u65f6\u76d1\u63a7I\/O\u8bf7\u6c42\u7684\u6267\u884c\u60c5\u51b5\u3002\u901a\u8fc7\u6536\u96c6I\/O\u5ef6\u8fdf\u3001\u8bf7\u6c42\u5927\u5c0f\u3001\u961f\u5217\u957f\u5ea6\u7b49\u6570\u636e\uff0ceBPF\u7a0b\u5e8f\u53ef\u4ee5\u5206\u6790\u6587\u4ef6\u7cfb\u7edf\u7684\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n\n

      \u4f8b\u5982\uff0c\u4f7f\u7528eBPF\u76d1\u63a7ext4\u6587\u4ef6\u7cfb\u7edf\u7684I\/O\u8bf7\u6c42\u5904\u7406\u6d41\u7a0b\uff0c\u53ef\u4ee5\u53d1\u73b0\u67d0\u4e9b\u78c1\u76d8\u533a\u57df\u7684\u9ad8\u5ef6\u8fdf\u95ee\u9898\u3002\u57fa\u4e8e\u8fd9\u4e9b\u6570\u636e\uff0c\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u7f13\u5b58\u7b56\u7565\u6216I\/O\u8c03\u5ea6\u7b97\u6cd5\uff0c\u4f18\u5316I\/O\u6027\u80fd\u3002<\/p>\n\n\n\n\n

      2. \u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\u5206\u6790<\/h4>\n\n\n\n\n

      \u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\u5bf9\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u6709\u91cd\u8981\u5f71\u54cd\u3002eBPF\u7a0b\u5e8f\u53ef\u4ee5\u76d1\u63a7\u6587\u4ef6\u8bbf\u95ee\u6a21\u5f0f\uff0c\u5982\u987a\u5e8f\u8bbf\u95ee\u3001\u968f\u673a\u8bbf\u95ee\u3001\u8bfb\u5199\u6bd4\u4f8b\u7b49\uff0c\u4e3a\u6587\u4ef6\u7cfb\u7edf\u4f18\u5316\u63d0\u4f9b\u4f9d\u636e\u3002<\/p>\n\n\n\n\n

      \u901a\u8fc7eBPF\u6536\u96c6\u7684\u8bbf\u95ee\u6a21\u5f0f\u6570\u636e\uff0c\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u9884\u8bfb\u7b56\u7565\u3001\u7f13\u5b58\u5927\u5c0f\u548c\u6dd8\u6c70\u7b97\u6cd5\uff0c\u63d0\u5347\u6587\u4ef6\u8bbf\u95ee\u6548\u7387\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4ee5\u987a\u5e8f\u8bbf\u95ee\u4e3a\u4e3b\u7684\u8d1f\u8f7d\uff0c\u53ef\u4ee5\u589e\u52a0\u9884\u8bfb\u5927\u5c0f\uff1b\u5bf9\u4e8e\u968f\u673a\u8bbf\u95ee\u4e3a\u4e3b\u7684\u8d1f\u8f7d\uff0c\u53ef\u4ee5\u4f18\u5316\u7f13\u5b58\u6dd8\u6c70\u7b56\u7565\u3002<\/p>\n\n\n\n\n

      3. \u6587\u4ef6\u7cfb\u7edf\u5143\u6570\u636e\u64cd\u4f5c\u4f18\u5316<\/h4>\n\n\n\n\n

      \u6587\u4ef6\u7cfb\u7edf\u7684\u5143\u6570\u636e\u64cd\u4f5c\uff08\u5982\u6587\u4ef6\u521b\u5efa\u3001\u5220\u9664\u3001\u76ee\u5f55\u904d\u5386\u7b49\uff09\u5bf9\u6027\u80fd\u5f71\u54cd\u8f83\u5927\u3002eBPF\u7a0b\u5e8f\u53ef\u4ee5\u76d1\u63a7\u5143\u6570\u636e\u64cd\u4f5c\u7684\u6027\u80fd\uff0c\u53d1\u73b0\u74f6\u9888\u5e76\u8fdb\u884c\u4f18\u5316\u3002<\/p>\n\n\n\n\n

      \u4f8b\u5982\uff0c\u901a\u8fc7eBPF\u76d1\u63a7\u53d1\u73b0ext4\u6587\u4ef6\u7cfb\u7edf\u5728\u76ee\u5f55\u904d\u5386\u64cd\u4f5c\u4e2d\u5b58\u5728\u9ad8\u5ef6\u8fdf\uff0c\u53ef\u4ee5\u4f18\u5316\u76ee\u5f55\u7d22\u5f15\u7ed3\u6784\u6216\u7f13\u5b58\u7b56\u7565\uff0c\u51cf\u5c11\u5143\u6570\u636e\u64cd\u4f5c\u7684\u5f00\u9500\u3002<\/p>\n\n\n\n\n

      4. \u5f02\u5e38\u884c\u4e3a\u68c0\u6d4b\u4e0e\u5904\u7406<\/h4>\n\n\n\n\n

      \u6587\u4ef6\u7cfb\u7edf\u7684\u5f02\u5e38\u884c\u4e3a\uff08\u5982\u78c1\u76d8\u6545\u969c\u3001\u6587\u4ef6\u635f\u574f\u7b49\uff09\u4f1a\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u7cfb\u7edf\u5d29\u6e83\u3002eBPF\u7a0b\u5e8f\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u6587\u4ef6\u7cfb\u7edf\u7684\u5f02\u5e38\u884c\u4e3a\uff0c\u53ca\u65f6\u53d1\u73b0\u5e76\u5904\u7406\u3002<\/p>\n\n\n\n\n

      \u4f8b\u5982\uff0c\u901a\u8fc7eBPF\u76d1\u63a7\u78c1\u76d8I\/O\u9519\u8bef\u7387\uff0c\u53ef\u4ee5\u5728\u9519\u8bef\u7387\u8fbe\u5230\u9608\u503c\u65f6\u89e6\u53d1\u544a\u8b66\u6216\u81ea\u52a8\u5207\u6362\u5230\u5907\u7528\u78c1\u76d8\uff0c\u786e\u4fdd\u7cfb\u7edf\u7a33\u5b9a\u8fd0\u884c\u3002<\/p>\n\n\n\n\n

      \u5b9e\u8df5\u6848\u4f8b\uff1a\u4f7f\u7528eBPF\u4f18\u5316ext4\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd<\/h3>\n\n\n\n\n

      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528eBPF\u4f18\u5316ext4\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u7684\u5b9e\u8df5\u6848\u4f8b\uff0c\u5c55\u793aeBPF\u6280\u672f\u5728\u6587\u4ef6\u7cfb\u7edf\u4f18\u5316\u4e2d\u7684\u5177\u4f53\u5e94\u7528\u3002<\/p>\n\n\n\n\n

      1. \u73af\u5883\u51c6\u5907<\/h4>\n\n\n\n\n
        \n\n\n
      • \u64cd\u4f5c\u7cfb\u7edf<\/strong>\uff1aLinux\u5185\u6838\u7248\u672c4.18\u53ca\u4ee5\u4e0a\uff08\u652f\u6301eBPF\uff09<\/li>\n\n\n\n\n
      • \u5de5\u5177<\/strong>\uff1abcc\uff08BPF Compiler Collection\uff09<\/li>\n\n\n\n\n
      • \u6587\u4ef6\u7cfb\u7edf<\/strong>\uff1aext4<\/li>\n\n\n<\/ul>\n\n\n\n\n

        2. \u7f16\u5199eBPF\u7a0b\u5e8f<\/h4>\n\n\n\n\n

        \u4f7f\u7528bcc\u7f16\u5199eBPF\u7a0b\u5e8f\uff0c\u76d1\u63a7ext4\u6587\u4ef6\u7cfb\u7edf\u7684I\/O\u8bf7\u6c42\u5904\u7406\u6d41\u7a0b\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684eBPF\u7a0b\u5e8f\u793a\u4f8b\uff1a<\/p>\n\n\n\n\n

        #include <uapi\/linux\/ptrace.h>
        \n#include <linux\/fs.h>
        \n#include <bcc\/proto.h>
        \n
        \nBPF_HASH(start, struct request *);
        \n
        \nint trace_ext4_request_start(struct pt_regs *ctx, struct request *req) {
        \n    u64 ts = bpf_ktime_get_ns();
        \n    start.update(&req, &ts);
        \n    return 0;
        \n}
        \n
        \nint trace_ext4_request_end(struct pt_regs *ctx, struct request *req) {
        \n    u64 *tsp = start.lookup(&req);
        \n    if (tsp != NULL) {
        \n        u64 delta = bpf_ktime_get_ns() - *tsp;
        \n        bpf_trace_printk("ext4 I\/O request duration: %llu ns\\\\n", delta);
        \n        start.delete(&req);
        \n    }
        \n    return 0;
        \n}
        \n<\/code><\/pre>\n\n\n\n\n
        3. \u52a0\u8f7d\u548c\u8fd0\u884ceBPF\u7a0b\u5e8f<\/h4>\n\n\n\n\n
        \u4f7f\u7528bcc\u5de5\u5177\u52a0\u8f7d\u548c\u8fd0\u884ceBPF\u7a0b\u5e8f\uff1a<\/p>\n\n\n\n\n
        # \u7f16\u8bd1\u548c\u52a0\u8f7deBPF\u7a0b\u5e8f
        \nbcc -c ext4_monitor.c -o ext4_monitor.o
        \nbcc -p `pgrep -f ext4` ext4_monitor.o
        \n
        \n# \u67e5\u770b\u8f93\u51fa
        \ndmesg | grep "ext4 I\/O request duration"
        \n<\/code><\/pre>\n\n\n\n\n
        4. \u6570\u636e\u5206\u6790\u4e0e\u4f18\u5316<\/h4>\n\n\n\n\n
        \u901a\u8fc7\u5206\u6790eBPF\u7a0b\u5e8f\u6536\u96c6\u7684I\/O\u8bf7\u6c42\u5904\u7406\u65f6\u95f4\u6570\u636e\uff0c\u53ef\u4ee5\u53d1\u73b0\u6027\u80fd\u74f6\u9888\u3002\u4f8b\u5982\uff0c\u5982\u679c\u53d1\u73b0\u67d0\u4e9bI\/O\u8bf7\u6c42\u7684\u5904\u7406\u65f6\u95f4\u8fc7\u957f\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5206\u6790\u78c1\u76d8\u8d1f\u8f7d\u3001\u6587\u4ef6\u7cfb\u7edf\u914d\u7f6e\u7b49\u56e0\u7d20\uff0c\u8fdb\u884c\u9488\u5bf9\u6027\u7684\u4f18\u5316\u3002<\/p>\n\n\n\n\n
        5. \u52a8\u6001\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u914d\u7f6e<\/h4>\n\n\n\n\n
        \u57fa\u4e8eeBPF\u7a0b\u5e8f\u7684\u76d1\u63a7\u6570\u636e\uff0c\u53ef\u4ee5\u52a8\u6001\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u7684\u914d\u7f6e\u53c2\u6570\uff0c\u5982\u9884\u8bfb\u5927\u5c0f\u3001\u7f13\u5b58\u7b56\u7565\u7b49\uff0c\u4f18\u5316\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n\n\n\n\n
        eBPF\u6280\u672f\u7684\u4f18\u52bf\u4e0e\u6311\u6218<\/h3>\n\n\n\n\n
        \u4f18\u52bf<\/h4>\n\n\n\n\n
          \n\n\n
        1. \u52a8\u6001\u6027<\/strong>\uff1aeBPF\u7a0b\u5e8f\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a0\u8f7d\u548c\u66f4\u65b0\uff0c\u65e0\u9700\u91cd\u542f\u7cfb\u7edf\uff0c\u9002\u5e94\u52a8\u6001\u53d8\u5316\u7684\u8d1f\u8f7d\u3002<\/li>\n\n\n\n\n
        2. \u9ad8\u6548\u6027<\/strong>\uff1aeBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u6267\u884c\uff0c\u907f\u514d\u4e86\u7528\u6237\u7a7a\u95f4\u4e0e\u5185\u6838\u7a7a\u95f4\u9891\u7e41\u5207\u6362\u7684\u5f00\u9500\u3002<\/li>\n\n\n\n\n
        3. \u5b89\u5168\u6027<\/strong>\uff1aeBPF\u9a8c\u8bc1\u5668\u786e\u4fdd\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\uff0c\u9632\u6b62\u6076\u610f\u4ee3\u7801\u7834\u574f\u5185\u6838\u3002<\/li>\n\n\n\n\n
        4. \u7075\u6d3b\u6027<\/strong>\uff1aeBPF\u652f\u6301\u591a\u79cd\u6570\u636e\u7ed3\u6784\u548c\u94a9\u5b50\u70b9\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u5185\u6838\u76d1\u63a7\u548c\u4f18\u5316\u573a\u666f\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n
          \u6311\u6218<\/h4>\n\n\n\n\n
            \n\n\n
          1. \u590d\u6742\u6027<\/strong>\uff1aeBPF\u7a0b\u5e8f\u7684\u7f16\u5199\u548c\u8c03\u8bd5\u76f8\u5bf9\u590d\u6742\uff0c\u9700\u8981\u6df1\u5165\u4e86\u89e3\u5185\u6838\u673a\u5236\u3002<\/li>\n\n\n\n\n
          2. \u517c\u5bb9\u6027<\/strong>\uff1a\u4e0d\u540c\u7248\u672c\u7684Linux\u5185\u6838\u5bf9eBPF\u7684\u652f\u6301\u7a0b\u5ea6\u4e0d\u540c\uff0c\u53ef\u80fd\u5b58\u5728\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/li>\n\n\n\n\n
          3. \u6027\u80fd\u5f00\u9500<\/strong>\uff1a\u867d\u7136eBPF\u7a0b\u5e8f\u9ad8\u6548\uff0c\u4f46\u5728\u9ad8\u8d1f\u8f7d\u60c5\u51b5\u4e0b\u4ecd\u53ef\u80fd\u5f15\u5165\u4e00\u5b9a\u7684\u6027\u80fd\u5f00\u9500\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n
            \u672a\u6765\u5c55\u671b<\/h3>\n\n\n\n\n
            eBPF\u6280\u672f\u5728\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u65b9\u9762\u5c55\u73b0\u51fa\u5de8\u5927\u7684\u6f5c\u529b\uff0c\u672a\u6765\u6709\u671b\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u8fdb\u4e00\u6b65\u53d1\u5c55\uff1a<\/p>\n\n\n\n\n
              \n\n\n
            1. \u667a\u80fd\u5316\u4f18\u5316<\/strong>\uff1a\u7ed3\u5408\u673a\u5668\u5b66\u4e60\u6280\u672f\uff0c\u57fa\u4e8eeBPF\u6536\u96c6\u7684\u6570\u636e\u81ea\u52a8\u8c03\u6574\u6587\u4ef6\u7cfb\u7edf\u914d\u7f6e\uff0c\u5b9e\u73b0\u667a\u80fd\u5316\u6027\u80fd\u4f18\u5316\u3002<\/li>\n\n\n\n\n
            2. \u8de8\u5e73\u53f0\u652f\u6301<\/strong>\uff1a\u6269\u5c55eBPF\u6280\u672f\u5230\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\uff0c\u63d0\u5347\u5176\u901a\u7528\u6027\u548c\u5e94\u7528\u8303\u56f4\u3002<\/li>\n\n\n\n\n
            3. \u793e\u533a\u751f\u6001\u5efa\u8bbe<\/strong>\uff1a\u52a0\u5f3aeBPF\u793e\u533a\u7684\u534f\u4f5c\uff0c\u63a8\u52a8\u66f4\u591aeBPF\u5de5\u5177\u548c\u5e93\u7684\u5f00\u53d1\uff0c\u964d\u4f4e\u4f7f\u7528\u95e8\u69db\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n
              \u603b\u4e4b\uff0ceBPF\u6280\u672f\u4e3a\u6587\u4ef6\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u4e86\u65b0\u7684\u65b9\u6cd5\u548c\u601d\u8def\uff0c\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u548c\u52a8\u6001\u8c03\u6574\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u5347\u6587\u4ef6\u7cfb\u7edf\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u5e94\u7528\u573a\u666f\u7684\u62d3\u5c55\uff0ceBPF\u5c06\u5728\u7cfb\u7edf\u6027\u80fd\u4f18\u5316\u9886\u57df\u53d1\u6325\u8d8a\u6765\u8d8a\u91cd\u8981\u7684\u4f5c\u7528\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":21286,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-29320","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\/29320","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=29320"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/29320\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/21286"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=29320"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=29320"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=29320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}