{"id":28931,"date":"2024-11-06T17:50:49","date_gmt":"2024-11-06T09:50:49","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=20166"},"modified":"2024-11-06T17:50:49","modified_gmt":"2024-11-06T09:50:49","slug":"%e4%ba%86%e8%a7%a3ebpf%e5%a6%82%e4%bd%95%e5%a2%9e%e5%bc%ba%e7%b3%bb%e7%bb%9f%e7%9a%84%e5%8f%af%e8%a7%82%e6%b5%8b%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/28931.html","title":{"rendered":"\u4e86\u89e3eBPF\u5982\u4f55\u589e\u5f3a\u7cfb\u7edf\u7684\u53ef\u89c2\u6d4b\u6027"},"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\u5305\u8fc7\u6ee4\uff0c\u4f46\u8fd1\u5e74\u6765\u5176\u5e94\u7528\u8303\u56f4\u5df2\u5927\u5e45\u6269\u5c55\uff0c\u6210\u4e3a\u589e\u5f3a\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u7684\u5173\u952e\u5de5\u5177\u3002eBPF<\/a>\u7684\u6838\u5fc3\u4f18\u52bf\u5728\u4e8e\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u52a8\u6001\u5730\u63d2\u5165\u548c\u6267\u884c\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\u3002\u8fd9\u4f7f\u5f97\u5b83\u5728\u7cfb\u7edf\u76d1\u63a7\u3001\u6027\u80fd\u5206\u6790\u3001\u5b89\u5168\u68c0\u6d4b\u7b49\u9886\u57df\u5c55\u73b0\u51fa\u5de8\u5927\u7684\u6f5c\u529b\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8eBPF\u5982\u4f55\u589e\u5f3a\u7cfb\u7edf\u7684\u53ef\u89c2\u6d4b\u6027\uff0c\u6db5\u76d6\u5176\u6280\u672f\u539f\u7406\u3001\u5e94\u7528\u573a\u666f\u53ca\u5b9e\u9645\u6848\u4f8b\u5206\u6790\u3002<\/p>\n\n\n\n\n

eBPF\u7684\u6280\u672f\u539f\u7406<\/h3>\n\n\n\n\n

eBPF\u7684\u57fa\u672c\u601d\u60f3\u662f\u5c06\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\uff0c\u5e76\u5728\u7279\u5b9a\u7684\u94a9\u5b50\u70b9\uff08\u5982\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u4e8b\u4ef6\u7b49\uff09\u6267\u884c\u8fd9\u4e9b\u7a0b\u5e8f\u3002\u8fd9\u4e9b\u7a0b\u5e8f\u7ecf\u8fc7\u4e00\u4e2a\u4e25\u683c\u7684\u9a8c\u8bc1\u5668\uff0c\u786e\u4fdd\u5b83\u4eec\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u7a33\u5b9a\u6027\u9020\u6210\u5f71\u54cd\u3002\u4ee5\u4e0b\u662feBPF\u7684\u5173\u952e\u6280\u672f\u7ec4\u4ef6\uff1a<\/p>\n\n\n\n\n\n\n\n\n

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

    \n\n\n
  1. BPF\u7a0b\u5e8f<\/strong>\uff1a\u7528\u6237\u7f16\u5199\u7684eBPF\u7a0b\u5e8f\uff0c\u901a\u5e38\u7528C\u8bed\u8a00\u7f16\u5199\uff0c\u7136\u540e\u901a\u8fc7BPF\u7f16\u8bd1\u5668\u8f6c\u6362\u4e3aBPF\u6307\u4ee4\u3002<\/li>\n\n\n\n\n
  2. BPF\u9a8c\u8bc1\u5668<\/strong>\uff1a\u786e\u4fddBPF\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\uff0c\u9632\u6b62\u6076\u610f\u6216\u9519\u8bef\u7684\u7a0b\u5e8f\u5f71\u54cd\u5185\u6838\u7a33\u5b9a\u6027\u3002<\/li>\n\n\n\n\n
  3. BPF\u6620\u5c04\uff08Maps\uff09<\/strong>\uff1a\u7528\u4e8e\u5728\u7528\u6237\u7a7a\u95f4\u548c\u5185\u6838\u7a7a\u95f4\u4e4b\u95f4\u4f20\u9012\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\u9884\u5b9a\u4e49\u7684\u6267\u884c\u70b9\uff0cBPF\u7a0b\u5e8f\u53ef\u4ee5\u5728\u8fd9\u4e9b\u70b9\u4e0a\u88ab\u89e6\u53d1\u6267\u884c\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    eBPF\u589e\u5f3a\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u7684\u65b9\u5f0f<\/h3>\n\n\n\n\n

    1. \u52a8\u6001\u8ffd\u8e2a<\/h4>\n\n\n\n\n

    eBPF\u6700\u76f4\u63a5\u7684\u5e94\u7528\u4e4b\u4e00\u662f\u52a8\u6001\u8ffd\u8e2a\u3002\u4f20\u7edf\u7684\u7cfb\u7edf\u8ffd\u8e2a\u5de5\u5177\u5982strace\u3001perf\u7b49\uff0c\u867d\u7136\u529f\u80fd\u5f3a\u5927\uff0c\u4f46\u5b58\u5728\u4e00\u5b9a\u7684\u5c40\u9650\u6027\uff0c\u5982\u6027\u80fd\u5f00\u9500\u5927\u3001\u529f\u80fd\u56fa\u5b9a\u7b49\u3002eBPF\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u52a8\u6001\u63d2\u5165\u8ffd\u8e2a\u70b9\uff0c\u80fd\u591f\u4ee5\u6781\u4f4e\u7684\u6027\u80fd\u5f00\u9500\u83b7\u53d6\u8be6\u7ec6\u7684\u7cfb\u7edf\u884c\u4e3a\u4fe1\u606f\u3002<\/p>\n\n\n\n\n

      \n\n\n
    • \u51fd\u6570\u8ffd\u8e2a<\/strong>\uff1a\u901a\u8fc7\u5728\u7279\u5b9a\u51fd\u6570\u5165\u53e3\u548c\u51fa\u53e3\u5904\u63d2\u5165BPF\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8bb0\u5f55\u51fd\u6570\u8c03\u7528\u7684\u65f6\u95f4\u3001\u53c2\u6570\u3001\u8fd4\u56de\u503c\u7b49\u4fe1\u606f\u3002<\/li>\n\n\n\n\n
    • \u4e8b\u4ef6\u8ffd\u8e2a<\/strong>\uff1a\u6355\u83b7\u7cfb\u7edf\u4e2d\u7684\u7279\u5b9a\u4e8b\u4ef6\uff0c\u5982\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u4e8b\u4ef6\u7b49\uff0c\u5e76\u8fdb\u884c\u5b9e\u65f6\u5206\u6790\u3002<\/li>\n\n\n<\/ul>\n\n\n\n\n

      2. \u6027\u80fd\u76d1\u63a7<\/h4>\n\n\n\n\n

      eBPF\u5728\u6027\u80fd\u76d1\u63a7\u65b9\u9762\u7684\u5e94\u7528\u4e5f\u975e\u5e38\u5e7f\u6cdb\u3002\u901a\u8fc7\u5b9e\u65f6\u6536\u96c6\u548c\u5206\u6790\u7cfb\u7edf\u7684\u6027\u80fd\u6570\u636e\uff0ceBPF\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n\n

        \n\n\n
      • CPU\u4f7f\u7528\u7387<\/strong>\uff1a\u76d1\u63a7\u5404\u4e2a\u8fdb\u7a0b\u7684CPU\u4f7f\u7528\u60c5\u51b5\uff0c\u8bc6\u522bCPU\u5bc6\u96c6\u578b\u4efb\u52a1\u3002<\/li>\n\n\n\n\n
      • \u5185\u5b58\u4f7f\u7528<\/strong>\uff1a\u8ffd\u8e2a\u5185\u5b58\u5206\u914d\u548c\u91ca\u653e\u60c5\u51b5\uff0c\u68c0\u6d4b\u5185\u5b58\u6cc4\u6f0f\u7b49\u95ee\u9898\u3002<\/li>\n\n\n\n\n
      • I\/O\u6027\u80fd<\/strong>\uff1a\u76d1\u63a7\u78c1\u76d8I\/O\u548c\u7f51\u7edcI\/O\u7684\u6027\u80fd\uff0c\u5206\u6790I\/O\u74f6\u9888\u3002<\/li>\n\n\n<\/ul>\n\n\n\n\n

        3. \u7f51\u7edc\u76d1\u63a7<\/h4>\n\n\n\n\n

        eBPF\u5728\u7f51\u7edc\u76d1\u63a7\u65b9\u9762\u7684\u5e94\u7528\u540c\u6837\u51fa\u8272\u3002\u5b83\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u7f51\u7edc\u534f\u8bae\u6808\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u73b0\u5bf9\u7f51\u7edc\u6d41\u91cf\u7684\u5b9e\u65f6\u76d1\u63a7\u548c\u5206\u6790\u3002<\/p>\n\n\n\n\n

          \n\n\n
        • \u6d41\u91cf\u5206\u6790<\/strong>\uff1a\u6355\u83b7\u548c\u5206\u6790\u7f51\u7edc\u6d41\u91cf\uff0c\u8bc6\u522b\u5f02\u5e38\u6d41\u91cf\u6a21\u5f0f\u3002<\/li>\n\n\n\n\n
        • \u7f51\u7edc\u5ef6\u8fdf<\/strong>\uff1a\u6d4b\u91cf\u7f51\u7edc\u5ef6\u8fdf\uff0c\u5206\u6790\u7f51\u7edc\u6027\u80fd\u95ee\u9898\u3002<\/li>\n\n\n\n\n
        • \u5b89\u5168\u68c0\u6d4b<\/strong>\uff1a\u68c0\u6d4b\u7f51\u7edc\u653b\u51fb\u884c\u4e3a\uff0c\u5982DDoS\u653b\u51fb\u3001\u6076\u610f\u6d41\u91cf\u7b49\u3002<\/li>\n\n\n<\/ul>\n\n\n\n\n

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

          eBPF\u5728\u5b89\u5168\u76d1\u63a7\u9886\u57df\u7684\u5e94\u7528\u4e5f\u9010\u6e10\u53d7\u5230\u91cd\u89c6\u3002\u901a\u8fc7\u76d1\u63a7\u7cfb\u7edf\u7684\u5173\u952e\u884c\u4e3a\uff0ceBPF\u53ef\u4ee5\u5e2e\u52a9\u68c0\u6d4b\u548c\u9632\u5fa1\u5404\u79cd\u5b89\u5168\u5a01\u80c1\u3002<\/p>\n\n\n\n\n

            \n\n\n
          • \u7cfb\u7edf\u8c03\u7528\u76d1\u63a7<\/strong>\uff1a\u76d1\u63a7\u7cfb\u7edf\u8c03\u7528\u884c\u4e3a\uff0c\u68c0\u6d4b\u5f02\u5e38\u6216\u6076\u610f\u64cd\u4f5c\u3002<\/li>\n\n\n\n\n
          • \u8fdb\u7a0b\u884c\u4e3a\u5206\u6790<\/strong>\uff1a\u5206\u6790\u8fdb\u7a0b\u7684\u884c\u4e3a\u6a21\u5f0f\uff0c\u8bc6\u522b\u6076\u610f\u8fdb\u7a0b\u3002<\/li>\n\n\n\n\n
          • \u6587\u4ef6\u7cfb\u7edf\u76d1\u63a7<\/strong>\uff1a\u76d1\u63a7\u6587\u4ef6\u7cfb\u7edf\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u884c\u4e3a\uff0c\u68c0\u6d4b\u6587\u4ef6\u7be1\u6539\u7b49\u5b89\u5168\u4e8b\u4ef6\u3002<\/li>\n\n\n<\/ul>\n\n\n\n\n

            \u5e94\u7528\u573a\u666f\u6848\u4f8b\u5206\u6790<\/h3>\n\n\n\n\n

            1. \u4f7f\u7528eBPF\u8fdb\u884c\u51fd\u6570\u8ffd\u8e2a<\/h4>\n\n\n\n\n

            \u5047\u8bbe\u6211\u4eec\u9700\u8981\u8ffd\u8e2a\u67d0\u4e2a\u5173\u952e\u7cfb\u7edf\u8c03\u7528\uff08\u5982open<\/code>\uff09\u7684\u884c\u4e3a\u3002\u901a\u8fc7\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684eBPF\u7a0b\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728open<\/code>\u7cfb\u7edf\u8c03\u7528\u7684\u5165\u53e3\u548c\u51fa\u53e3\u5904\u63d2\u5165\u94a9\u5b50\uff0c\u8bb0\u5f55\u8c03\u7528\u7684\u65f6\u95f4\u3001\u6587\u4ef6\u8def\u5f84\u3001\u8fd4\u56de\u503c\u7b49\u4fe1\u606f\u3002<\/p>\n\n\n\n\n

            #include <bpf\/bpf_helpers.h>
            \n
            \nstruct {
            \n    __uint(type, BPF_MAP_TYPE_RINGBUF);
            \n    __uint(max_entries, 256 * 1024);
            \n} ringbuf SEC(".maps");
            \n
            \nSEC("tracepoint\/syscalls\/sys_enter_open")
            \nint handle_sys_enter_open(struct trace_event_raw_sys_enter *ctx) {
            \n    struct event {
            \n        char comm[16];
            \n        int pid;
            \n        char filename[256];
            \n    } __attribute__((packed)) event;
            \n
            \n    bpf_get_current_comm(event.comm, sizeof(event.comm));
            \n    event.pid = bpf_get_current_pid_tgid() >> 32;
            \n    bpf_probe_read_user_str(event.filename, sizeof(event.filename), (void *)ctx->args[0]);
            \n
            \n    bpf_ringbuf_output(&ringbuf, &event, sizeof(event), 0);
            \n    return 0;
            \n}
            \n
            \nchar _license[] SEC("license") = "GPL";
            \n<\/code><\/pre>\n\n\n\n\n
            \u901a\u8fc7\u8fd9\u4e2aBPF\u7a0b\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u65f6\u6355\u83b7\u6240\u6709open<\/code>\u7cfb\u7edf\u8c03\u7528\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5e76\u901a\u8fc7ringbuf\u6620\u5c04\u5c06\u6570\u636e\u4f20\u9012\u5230\u7528\u6237\u7a7a\u95f4\u8fdb\u884c\u5206\u6790\u3002<\/p>\n\n\n\n\n
            2. \u4f7f\u7528eBPF\u8fdb\u884c\u7f51\u7edc\u6d41\u91cf\u5206\u6790<\/h4>\n\n\n\n\n
            \u5047\u8bbe\u6211\u4eec\u9700\u8981\u5206\u6790\u67d0\u4e2a\u7279\u5b9a\u7aef\u53e3\u7684\u7f51\u7edc\u6d41\u91cf\u3002\u901a\u8fc7\u7f16\u5199\u4e00\u4e2aeBPF\u7a0b\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u7f51\u7edc\u5305\u5904\u7406\u7684\u94a9\u5b50\u70b9\uff08\u5982skb_recv<\/code>\uff09\u63d2\u5165\u7a0b\u5e8f\uff0c\u6355\u83b7\u548c\u5206\u6790\u7279\u5b9a\u7aef\u53e3\u7684\u6d41\u91cf\u3002<\/p>\n\n\n\n\n
            #include <bpf\/bpf_helpers.h>
            \n#include <bpf\/bpf_endian.h>
            \n
            \nstruct {
            \n    __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
            \n    __uint(max_entries, 1);
            \n    __type(value, long);
            \n} port_stats SEC(".maps");
            \n
            \nSEC("xdp")
            \nint monitor_port(struct xdp_md *ctx) {
            \n    void *data = (void *)(long)ctx->data;
            \n    void *data_end = (void *)(long)ctx->data_end;
            \n    struct ethhdr *eth = data;
            \n    struct iphdr *ip;
            \n    struct udphdr *udp;
            \n
            \n    if (data + sizeof(*eth) > data_end)
            \n        return XDP_PASS;
            \n
            \n    if (eth->h_proto != bpf_htons(ETH_P_IP))
            \n        return XDP_PASS;
            \n
            \n    ip = data + sizeof(*eth);
            \n    if (data + sizeof(*eth) + sizeof(*ip) > data_end)
            \n        return XDP_PASS;
            \n
            \n    if (ip->protocol != IPPROTO_UDP)
            \n        return XDP_PASS;
            \n
            \n    udp = data + sizeof(*eth) + sizeof(*ip);
            \n    if (data + sizeof(*eth) + sizeof(*ip) + sizeof(*udp) > data_end)
            \n        return XDP_PASS;
            \n
            \n    if (bpf_ntohs(udp->dest) == 12345) { \/\/ \u76d1\u63a7\u76ee\u6807\u7aef\u53e3
            \n        long *value = bpf_map_lookup_elem(&port_stats, &zero);
            \n        if (value)
            \n            __sync_fetch_and_add(value, 1);
            \n    }
            \n
            \n    return XDP_PASS;
            \n}
            \n
            \nchar _license[] SEC("license") = "GPL";
            \n<\/code><\/pre>\n\n\n\n\n
            \u901a\u8fc7\u8fd9\u4e2aBPF\u7a0b\u5e8f\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u65f6\u7edf\u8ba1\u76ee\u6807\u7aef\u53e3\u7684UDP\u6d41\u91cf\uff0c\u5e76\u901a\u8fc7percpu\u6570\u7ec4\u6620\u5c04\u5c06\u7edf\u8ba1\u7ed3\u679c\u4f20\u9012\u5230\u7528\u6237\u7a7a\u95f4\u3002<\/p>\n\n\n\n\n
            eBPF\u5de5\u5177\u548c\u751f\u6001\u7cfb\u7edf<\/h3>\n\n\n\n\n
            \u968f\u7740eBPF\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u6d8c\u73b0\u51fa\u8bb8\u591a\u4f18\u79c0\u7684eBPF\u5de5\u5177\u548c\u6846\u67b6\uff0c\u8fdb\u4e00\u6b65\u7b80\u5316\u4e86eBPF\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u5e94\u7528\u3002<\/p>\n\n\n\n\n
              \n\n\n
            • BCC\uff08BPF Compiler Collection\uff09<\/strong>\uff1a\u4e00\u4e2a\u5f00\u6e90\u7684eBPF\u5de5\u5177\u96c6\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5e93\u548c\u793a\u4f8b\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u5feb\u901f\u7f16\u5199\u548c\u90e8\u7f72eBPF\u7a0b\u5e8f\u3002<\/li>\n\n\n\n\n
            • bpftrace<\/strong>\uff1a\u4e00\u4e2a\u9ad8\u6548\u7684eBPF\u8ffd\u8e2a\u5de5\u5177\uff0c\u7c7b\u4f3c\u4e8eawk\u3001sed\u7b49\u6587\u672c\u5904\u7406\u5de5\u5177\uff0c\u9002\u7528\u4e8e\u5feb\u901f\u8fdb\u884c\u7cfb\u7edf\u8ffd\u8e2a\u548c\u5206\u6790\u3002<\/li>\n\n\n\n\n
            • Cilium<\/strong>\uff1a\u4e00\u4e2a\u57fa\u4e8eeBPF\u7684\u7f51\u7edc\u548c\u5b89\u5168\u89e3\u51b3\u65b9\u6848\uff0c\u4e3b\u8981\u7528\u4e8e\u5bb9\u5668\u73af\u5883\uff0c\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7f51\u7edc\u76d1\u63a7\u548c\u5b89\u5168\u529f\u80fd\u3002<\/li>\n\n\n\n\n
            • Falco<\/strong>\uff1a\u4e00\u4e2a\u5f00\u6e90\u7684\u5bb9\u5668\u5b89\u5168\u76d1\u63a7\u5de5\u5177\uff0c\u5229\u7528eBPF\u6280\u672f\u8fdb\u884c\u7cfb\u7edf\u8c03\u7528\u76d1\u63a7\u548c\u884c\u4e3a\u5206\u6790\uff0c\u68c0\u6d4b\u5f02\u5e38\u548c\u6076\u610f\u884c\u4e3a\u3002<\/li>\n\n\n<\/ul>\n\n\n\n\n
              eBPF\u7684\u672a\u6765\u53d1\u5c55<\/h3>\n\n\n\n\n
              eBPF\u6280\u672f\u5728\u4e0d\u65ad\u589e\u5f3a\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u7684\u540c\u65f6\uff0c\u4e5f\u5728\u4e0d\u65ad\u6f14\u8fdb\u548c\u53d1\u5c55\u3002\u672a\u6765\u7684eBPF\u53ef\u80fd\u4f1a\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u53d6\u5f97\u66f4\u591a\u7a81\u7834\uff1a<\/p>\n\n\n\n\n
                \n\n\n
              1. \u6027\u80fd\u4f18\u5316<\/strong>\uff1a\u8fdb\u4e00\u6b65\u63d0\u5347eBPF\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\uff0c\u964d\u4f4e\u6027\u80fd\u5f00\u9500\u3002<\/li>\n\n\n\n\n
              2. \u529f\u80fd\u6269\u5c55<\/strong>\uff1a\u652f\u6301\u66f4\u591a\u7684\u5185\u6838\u94a9\u5b50\u70b9\u548c\u6570\u636e\u7ed3\u6784\uff0c\u6269\u5c55eBPF\u7684\u5e94\u7528\u8303\u56f4\u3002<\/li>\n\n\n\n\n
              3. \u6613\u7528\u6027\u63d0\u5347<\/strong>\uff1a\u7b80\u5316eBPF\u7a0b\u5e8f\u7684\u5f00\u53d1\u548c\u90e8\u7f72\u6d41\u7a0b\uff0c\u964d\u4f4e\u4f7f\u7528\u95e8\u69db\u3002<\/li>\n\n\n\n\n
              4. \u6807\u51c6\u5316\u548c\u517c\u5bb9\u6027<\/strong>\uff1a\u63a8\u52a8eBPF\u6280\u672f\u7684\u6807\u51c6\u5316\uff0c\u63d0\u9ad8\u4e0d\u540c\u5185\u6838\u7248\u672c\u548c\u64cd\u4f5c\u7cfb\u7edf\u4e4b\u95f4\u7684\u517c\u5bb9\u6027\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n
                \u603b\u7ed3<\/h3>\n\n\n\n\n
                eBPF\u4f5c\u4e3a\u4e00\u79cd\u65b0\u5174\u7684\u6280\u672f\uff0c\u4ee5\u5176\u72ec\u7279\u7684\u4f18\u52bf\u5728\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u9886\u57df\u5c55\u73b0\u51fa\u5de8\u5927\u7684\u6f5c\u529b\u3002\u901a\u8fc7\u52a8\u6001\u63d2\u5165\u548c\u6267\u884c\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\uff0ceBPF\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u884c\u4e3a\u7684\u7cbe\u7ec6\u5316\u76d1\u63a7\u548c\u5206\u6790\u3002\u65e0\u8bba\u662f\u5728\u52a8\u6001\u8ffd\u8e2a\u3001\u6027\u80fd\u76d1\u63a7\u3001\u7f51\u7edc\u76d1\u63a7\u8fd8\u662f\u5b89\u5168\u76d1\u63a7\u65b9\u9762\uff0ceBPF\u90fd\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5de5\u5177\u548c\u89e3\u51b3\u65b9\u6848\u3002\u968f\u7740eBPF\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u751f\u6001\u7cfb\u7edf\u7684\u65e5\u76ca\u5b8c\u5584\uff0c\u6211\u4eec\u6709\u7406\u7531\u76f8\u4fe1\uff0ceBPF\u5c06\u5728\u672a\u6765\u6210\u4e3a\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u7684\u6838\u5fc3\u6280\u672f\u4e4b\u4e00\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":20167,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-28931","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\/28931","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=28931"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/28931\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/20167"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=28931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=28931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=28931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}