{"id":34820,"date":"2025-03-11T14:49:31","date_gmt":"2025-03-11T06:49:31","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=34820"},"modified":"2025-03-11T14:49:31","modified_gmt":"2025-03-11T06:49:31","slug":"ebpf%e5%9c%a8%e6%97%a5%e5%bf%97%e8%81%9a%e5%90%88%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e9%ab%98%e6%95%88%e5%ba%94%e7%94%a8%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/34820.html","title":{"rendered":"eBPF\u5728\u65e5\u5fd7\u805a\u5408\u7cfb\u7edf\u4e2d\u7684\u9ad8\u6548\u5e94\u7528\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/www.yunshan.net\/blog\/wp-content\/uploads\/2025\/03\/FoUfx1P482.jpg\" alt=\"eBPF\u5728\u65e5\u5fd7\u805a\u5408\u7cfb\u7edf\u4e2d\u7684\u9ad8\u6548\u5e94\u7528\uff1f\" ><\/p>\n<\/p>\n<h2 id=\"\u5f53\u53ef\u89c2\u6d4b\u6027\u9047\u4e0a\u5185\u6838\u9769\u547d-ebpf\u5982\u4f55\u91cd\u5851\u65e5\u5fd7\u76d1\u63a7\u8303\u5f0f\">\u5f53\u53ef\u89c2\u6d4b\u6027\u9047\u4e0a\u5185\u6838\u9769\u547d\uff1a<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\u5982\u4f55\u91cd\u5851\u65e5\u5fd7\u76d1\u63a7\u8303\u5f0f<\/h2>\n<p>\u5728\u6bcf\u79d2\u5904\u7406\u767e\u4e07\u7ea7\u8bf7\u6c42\u7684\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\uff0c\u4e00\u4e2a\u5f02\u5e38\u7684TCP\u91cd\u4f20\u4e8b\u4ef6\u53ef\u80fd\u5bfc\u81f4\u6574\u4e2a\u5fae\u670d\u52a1\u96c6\u7fa4\u7684\u96ea\u5d29\u3002\u4f20\u7edf\u65e5\u5fd7\u7cfb\u7edf\u5f80\u5f80\u5728\u6545\u969c\u53d1\u751f\u6570\u5c0f\u65f6\u540e\u624d\u80fd\u63d0\u4f9b\u6709\u6548\u7ebf\u7d22\uff0c\u8fd9\u79cd\u5ef6\u8fdf\u5728\u5f53\u4eca\u4e91\u539f\u751f\u65f6\u4ee3\u6b63\u53d8\u5f97\u6108\u53d1\u4e0d\u53ef\u63a5\u53d7\u3002<strong><a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\u6280\u672f\u7684\u51fa\u73b0\uff0c\u4e3a\u65e5\u5fd7\u805a\u5408\u9886\u57df\u5e26\u6765\u4e86\u9769\u547d\u6027\u7684\u7a81\u7834<\/strong>\u2014\u2014\u901a\u8fc7\u5728\u5185\u6838\u5c42\u5b9e\u73b0\u7cbe\u51c6\u7684\u4e8b\u4ef6\u6355\u83b7\u4e0e\u6570\u636e\u5904\u7406\uff0c\u5b83\u4f7f\u5f97\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u4ece&rdquo;\u4e8b\u540e\u53d6\u8bc1&rdquo;\u8dc3\u5347\u4e3a&rdquo;\u5b9e\u65f6\u8bca\u65ad&rdquo;\u3002<\/p>\n<h3 id=\"\u4e00-\u4f20\u7edf\u65e5\u5fd7\u805a\u5408\u7684\u4e09\u5927\u6548\u80fd\u74f6\u9888\">\u4e00\u3001\u4f20\u7edf\u65e5\u5fd7\u805a\u5408\u7684\u4e09\u5927\u6548\u80fd\u74f6\u9888<\/h3>\n<p>\u5728\u6df1\u5165\u63a2\u8ba8eBPF\u7684\u9769\u65b0\u4ef7\u503c\u524d\uff0c\u6211\u4eec\u9700\u8981\u6b63\u89c6\u4f20\u7edf\u65b9\u6848\u7684\u56fa\u6709\u7f3a\u9677\u3002\u57fa\u4e8esyslog\u6216\u6587\u4ef6\u91c7\u96c6\u7684\u65e5\u5fd7\u7cfb\u7edf\u5f80\u5f80\u9762\u4e34\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u6027\u80fd\u635f\u8017\u6096\u8bba<\/strong>\uff1a\u67d0\u4e91\u670d\u52a1\u5546\u7684\u6d4b\u8bd5\u6570\u636e\u663e\u793a\uff0c\u5f53\u65e5\u5fd7\u91c7\u96c6\u9891\u7387\u8d85\u8fc75000\u6761\/\u79d2\u65f6\uff0c\u57fa\u4e8e\u7528\u6237\u6001\u4ee3\u7406\u7684\u65b9\u6848\u4f1a\u5bfc\u81f4\u5e94\u7528\u541e\u5410\u91cf\u4e0b\u964d23%\u3002\u8fd9\u79cd\u4e3a\u83b7\u53d6\u53ef\u89c2\u6d4b\u6027\u800c\u727a\u7272\u4e1a\u52a1\u6027\u80fd\u7684\u56f0\u5883\uff0c\u5728\u5173\u952e\u7cfb\u7edf\u4e2d\u5c24\u4e3a\u7a81\u51fa\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6570\u636e\u5197\u4f59\u56f0\u5883<\/strong>\uff1a\u7f51\u7edc\u8bbe\u5907\u4ea7\u751f\u7684\u8fde\u63a5\u65e5\u5fd7\u4e2d\uff0c\u8d85\u8fc760%\u7684\u6761\u76ee\u8bb0\u5f55\u7684\u662f\u6b63\u5e38\u72b6\u6001\u53d8\u66f4\u3002\u67d0\u91d1\u878d\u79d1\u6280\u516c\u53f8\u66fe\u53d1\u73b0\u5176\u65e5\u5fd7\u5b58\u50a8\u6210\u672c\u4e2d\uff0c\u670945%\u6765\u81ea\u5bf9\u6b63\u5e38\u5fc3\u8df3\u5305\u7684\u91cd\u590d\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b9e\u65f6\u6027\u9e3f\u6c9f<\/strong>\uff1a\u5f53Kubernetes\u96c6\u7fa4\u53d1\u751fPod\u5f02\u5e38\u9a71\u9010\u65f6\uff0c\u4f20\u7edf\u65e5\u5fd7\u7ba1\u9053\u5e73\u5747\u9700\u898158\u79d2\u624d\u80fd\u5b8c\u6210\u65e5\u5fd7\u6536\u96c6\u3001\u4f20\u8f93\u3001\u7d22\u5f15\u7684\u5168\u6d41\u7a0b\u3002\u5728\u81ea\u52a8\u9a7e\u9a76\u6216\u9ad8\u9891\u4ea4\u6613\u573a\u666f\u4e2d\uff0c\u8fd9\u79cd\u5ef6\u8fdf\u8db3\u4ee5\u5f15\u53d1\u707e\u96be\u6027\u540e\u679c\u3002<\/p>\n<\/li>\n<\/ol>\n<h3 id=\"\u4e8c-ebpf\u7684\u6280\u672f\u7279\u6027\u4e0e\u65e5\u5fd7\u573a\u666f\u9002\u914d\">\u4e8c\u3001eBPF\u7684\u6280\u672f\u7279\u6027\u4e0e\u65e5\u5fd7\u573a\u666f\u9002\u914d<\/h3>\n<p>eBPF\uff08extended Berkeley Packet Filter\uff09\u901a\u8fc7\u6c99\u7bb1\u673a\u5236\u5728\u5185\u6838\u7a7a\u95f4\u8fd0\u884c\u9a8c\u8bc1\u8fc7\u7684\u7a0b\u5e8f\uff0c\u8fd9\u79cd\u67b6\u6784\u8d4b\u4e88\u5176\u72ec\u7279\u7684\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u96f6\u62f7\u8d1d\u6570\u636e\u6355\u83b7<\/strong>\uff1a\u5728\u5185\u6838\u5c42\u76f4\u63a5\u89e3\u6790\u7f51\u7edc\u5305\u6216\u7cfb\u7edf\u8c03\u7528\uff0c\u907f\u514d\u5c06\u6570\u636e\u590d\u5236\u5230\u7528\u6237\u6001\u7684\u5f00\u9500\u3002Facebook\u7684\u6d4b\u8bd5\u8868\u660e\uff0c\u8fd9\u79cd\u65b9\u6cd5\u80fd\u964d\u4f4e73%\u7684CPU\u5229\u7528\u7387\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u52a8\u6001\u63a2\u9488\u6280\u672f<\/strong>\uff1a\u65e0\u9700\u91cd\u542f\u670d\u52a1\u6216\u4fee\u6539\u4ee3\u7801\uff0c\u5373\u53ef\u5728\u5173\u952e\u51fd\u6570\u5165\u53e3\/\u51fa\u53e3\u6ce8\u5165\u89c2\u6d4b\u903b\u8f91\u3002\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u7ebf\u4e0a\u751f\u4ea7\u73af\u5883\u4e2d\u7684Go\u8bed\u8a00\u5fae\u670d\u52a1\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7cbe\u51c6\u4e8b\u4ef6\u8fc7\u6ee4<\/strong>\uff1a\u901a\u8fc7\u9884\u7f16\u8bd1\u7684BPF\u7a0b\u5e8f\uff0c\u53ef\u5728\u5185\u6838\u5c42\u5b8c\u6210\u65e5\u5fd7\u7684\u521d\u6b65\u7b5b\u9009\u3002\u67d0CDN\u5382\u5546\u5229\u7528\u6b64\u7279\u6027\uff0c\u5c06DDoS\u653b\u51fb\u65e5\u5fd7\u7684\u751f\u6210\u91cf\u964d\u4f4e\u4e86\u4e24\u4e2a\u6570\u91cf\u7ea7\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 id=\"\u4e09-ebpf\u65e5\u5fd7\u7cfb\u7edf\u7684\u67b6\u6784\u521b\u65b0\">\u4e09\u3001eBPF\u65e5\u5fd7\u7cfb\u7edf\u7684\u67b6\u6784\u521b\u65b0<\/h3>\n<p><strong>\u57fa\u4e8eeBPF\u7684\u65e5\u5fd7\u805a\u5408\u67b6\u6784\u6b63\u5728\u98a0\u8986\u4f20\u7edf\u8bbe\u8ba1\u8303\u5f0f<\/strong>\u3002\u5178\u578b\u5b9e\u73b0\u5305\u542b\u4e09\u4e2a\u6838\u5fc3\u7ec4\u4ef6\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u667a\u80fd\u91c7\u96c6\u5c42<\/strong>\uff1a\u5728\u5185\u6838\u7a7a\u95f4\u8fd0\u884c\u7684BPF\u7a0b\u5e8f\uff0c\u901a\u8fc7kprobe\/tracepoint\u6302\u8f7d\u5230\u5173\u952e\u7cfb\u7edf\u4e8b\u4ef6\u3002\u4f8b\u5982\u8ffd\u8e2aTCP\u91cd\u4f20\u4e8b\u4ef6\u65f6\uff0c\u53ea\u9700\u6355\u83b7skb_retransmit\u8fd9\u4e00\u7279\u5b9a\u51fd\u6570\u8c03\u7528\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6d41\u5f0f\u5904\u7406\u7ba1\u9053<\/strong>\uff1a\u5229\u7528\u73af\u5f62\u7f13\u51b2\u533a\uff08ring buffer\uff09\u6216Perf\u4e8b\u4ef6\u673a\u5236\uff0c\u5b9e\u73b0\u4e9a\u6beb\u79d2\u7ea7\u7684\u4e8b\u4ef6\u4f20\u8f93\u3002\u914d\u5408eBPF\u7684\u805a\u5408\u7edf\u8ba1\u529f\u80fd\uff0c\u53ef\u5728\u6570\u636e\u5230\u8fbe\u7528\u6237\u6001\u524d\u5b8c\u6210\u521d\u6b65\u7684\u6307\u6807\u8ba1\u7b97\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e0a\u4e0b\u6587\u5173\u8054\u5f15\u64ce<\/strong>\uff1a\u901a\u8fc7\u83b7\u53d6\u8fdb\u7a0bID\u3001cgroup\u4fe1\u606f\u3001Kubernetes\u5143\u6570\u636e\u7b49\uff0c\u81ea\u52a8\u4e3a\u65e5\u5fd7\u6761\u76ee\u9644\u52a0\u4e30\u5bcc\u7684\u73af\u5883\u4e0a\u4e0b\u6587\u3002\u8fd9\u5728\u8c03\u8bd5\u5206\u5e03\u5f0f\u7cfb\u7edf\u65f6\uff0c\u663e\u8457\u63d0\u5347\u4e86\u6545\u969c\u5b9a\u4f4d\u6548\u7387\u3002<\/p>\n<\/li>\n<\/ol>\n<h3 id=\"\u56db-\u573a\u666f\u5316\u5e94\u7528\u5b9e\u8df5\">\u56db\u3001\u573a\u666f\u5316\u5e94\u7528\u5b9e\u8df5<\/h3>\n<p>\u5728\u5177\u4f53\u4e1a\u52a1\u573a\u666f\u4e2d\uff0ceBPF\u6280\u672f\u5c55\u73b0\u51fa\u60ca\u4eba\u7684\u9002\u5e94\u80fd\u529b\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u7f51\u7edc\u6545\u969c\u8bca\u65ad<\/strong>\uff1a\u67d0\u89c6\u9891\u6d41\u5a92\u4f53\u5e73\u53f0\u90e8\u7f72eBPF\u540e\uff0c\u6210\u529f\u5c06QUIC\u534f\u8bae\u63e1\u624b\u5931\u8d25\u7684\u6392\u67e5\u65f6\u95f4\u4ece\u5e73\u57474.2\u5c0f\u65f6\u7f29\u77ed\u81f311\u5206\u949f\u3002\u5173\u952e\u5728\u4e8e\u6355\u83b7\u4e86\u5185\u6838\u4e2dTLS\u63e1\u624b\u7684\u8be6\u7ec6\u72b6\u6001\u673a\u53d8\u8fc1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b89\u5168\u5ba1\u8ba1\u589e\u5f3a<\/strong>\uff1a\u901a\u8fc7\u76d1\u63a7execve\u7cfb\u7edf\u8c03\u7528\uff0c\u67d0\u94f6\u884c\u7684\u5b89\u5168\u56e2\u961f\u6784\u5efa\u4e86\u8fdb\u7a0b\u884c\u4e3a\u753b\u50cf\u7cfb\u7edf\u3002\u4e0e\u4f20\u7edf\u7684auditd\u65b9\u6848\u76f8\u6bd4\uff0cCPU\u5360\u7528\u7387\u964d\u4f4e82%\uff0c\u540c\u65f6\u68c0\u6d4b\u52303\u500d\u4ee5\u4e0a\u7684\u53ef\u7591\u884c\u4e3a\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5b58\u50a8\u6027\u80fd\u4f18\u5316<\/strong>\uff1a\u4e91\u5b58\u50a8\u670d\u52a1\u5546\u4f7f\u7528eBPF\u8ddf\u8e2a\u5757\u8bbe\u5907IO\u6808\uff0c\u53d1\u73b0ext4\u6587\u4ef6\u7cfb\u7edf\u7684\u65e5\u5fd7\u63d0\u4ea4\u5b58\u5728\u6279\u91cf\u5408\u5e76\u7f3a\u9677\u3002\u8fd9\u4e2a\u53d1\u73b0\u5e2e\u52a9\u5176\u5c06\u968f\u673a\u5199\u541e\u5410\u91cf\u63d0\u5347\u4e8637%\u3002<\/p>\n<\/li>\n<\/ul>\n<h3 id=\"\u4e94-\u5de5\u7a0b\u5316\u843d\u5730\u7684\u5173\u952e\u8003\u91cf\">\u4e94\u3001\u5de5\u7a0b\u5316\u843d\u5730\u7684\u5173\u952e\u8003\u91cf<\/h3>\n<p>\u5c3d\u7ba1eBPF\u4f18\u52bf\u663e\u8457\uff0c\u4f46\u5728\u751f\u4ea7\u73af\u5883\u90e8\u7f72\u65f6\u4ecd\u9700\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u5185\u6838\u7248\u672c\u9002\u914d<\/strong>\uff1a\u5229\u7528CO-RE\uff08Compile Once &#8211; Run Everywhere\uff09\u6280\u672f\uff0c\u901a\u8fc7BTF\u7c7b\u578b\u4fe1\u606f\u5b9e\u73b0\u8de8\u5185\u6838\u7248\u672c\u517c\u5bb9\u3002\u9700\u8981\u7279\u522b\u5173\u6ce84.18\u4e4b\u540e\u7684\u4e3b\u8981\u7248\u672c\u7279\u6027\u5dee\u5f02\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8d44\u6e90\u914d\u989d\u7ba1\u7406<\/strong>\uff1a\u8bbe\u7f6e\u5408\u7406\u7684CPU\u548c\u5185\u5b58\u9650\u5236\uff0c\u9632\u6b62\u5f02\u5e38BPF\u7a0b\u5e8f\u5bfc\u81f4\u5185\u6838\u9501\u5b9a\u3002\u63a8\u8350\u91c7\u7528libbpf\u7684\u81ea\u52a8\u8d44\u6e90\u56de\u6536\u673a\u5236\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u53ef\u89c6\u5316\u74f6\u9888\u7a81\u7834<\/strong>\uff1a\u5f53\u5904\u7406\u6bcf\u79d2\u767e\u4e07\u7ea7\u4e8b\u4ef6\u65f6\uff0c\u9700\u8981\u91c7\u7528\u77e2\u91cf\u5316\u7684\u65e5\u5fd7\u7f16\u7801\u65b9\u6848\u3002\u4f8b\u5982\u5c06\u540c\u7c7b\u4e8b\u4ef6\u805a\u5408\u4e3a\u76f4\u65b9\u56fe\u6216\u8ba1\u6570\u5668\uff0c\u518d\u5468\u671f\u6027\u5bfc\u51fa\u5230<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u968f\u7740Linux 6.0\u5185\u6838\u5f15\u5165BPF trampoline\u7b49\u65b0\u7279\u6027\uff0ceBPF\u5728\u65e5\u5fd7\u9886\u57df\u7684\u6f5c\u529b\u4ecd\u5728\u6301\u7eed\u91ca\u653e\u3002\u4ece\u5185\u6838\u6001\u7684\u9ad8\u6548\u6293\u53d6\u5230\u667a\u80fd\u5316\u7684\u65e5\u5fd7\u9884\u5904\u7406\uff0c\u8fd9\u9879\u6280\u672f\u6b63\u5728\u91cd\u65b0\u5b9a\u4e49\u53ef\u89c2\u6d4b\u6027\u7cfb\u7edf\u7684\u6027\u80fd\u57fa\u51c6\u3002\u5f53\u4f20\u7edf\u7684ELK\u67b6\u6784\u9047\u5230\u6027\u80fd\u5929\u82b1\u677f\u65f6\uff0ceBPF\u4e3a\u4e0b\u4e00\u4ee3\u65e5\u5fd7\u7cfb\u7edf\u63d0\u4f9b\u4e86\u8de8\u8d8a\u5f0f\u53d1\u5c55\u7684\u6280\u672f\u8def\u5f84\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u53ef\u89c2\u6d4b\u6027\u9047\u4e0a\u5185\u6838\u9769\u547d\uff1aeBPF\u5982\u4f55\u91cd\u5851\u65e5\u5fd7\u76d1\u63a7\u8303\u5f0f \u5728\u6bcf\u79d2\u5904\u7406\u767e\u4e07\u7ea7\u8bf7\u6c42\u7684\u4e91\u8ba1\u7b97\u73af\u5883\u4e2d\uff0c\u4e00\u4e2a\u5f02\u5e38\u7684TCP\u91cd\u4f20\u4e8b\u4ef6\u53ef\u80fd\u5bfc\u81f4\u6574\u4e2a\u5fae\u670d\u52a1\u96c6\u7fa4\u7684\u96ea\u5d29\u3002\u4f20\u7edf\u65e5\u5fd7\u7cfb\u7edf\u5f80\u5f80\u5728\u6545\u969c\u53d1\u751f\u6570\u5c0f\u65f6\u540e\u624d\u80fd\u63d0\u4f9b\u6709\u6548\u7ebf\u7d22\uff0c\u8fd9\u79cd\u5ef6\u8fdf\u5728\u5f53\u4eca\u4e91\u539f\u751f\u65f6\u4ee3\u6b63\u53d8\u5f97\u6108\u53d1\u4e0d\u53ef\u63a5\u53d7\u3002eBPF\u6280\u672f\u7684\u51fa\u73b0\uff0c\u4e3a\u65e5\u5fd7\u805a\u5408\u9886\u57df\u5e26\u6765\u4e86\u9769\u547d\u6027\u7684\u7a81\u7834\u2014\u2014\u901a\u8fc7\u5728\u5185\u6838\u5c42\u5b9e\u73b0\u7cbe\u51c6\u7684\u4e8b\u4ef6\u6355\u83b7\u4e0e\u6570\u636e\u5904\u7406\uff0c\u5b83\u4f7f\u5f97\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\u4ece&rdquo;\u4e8b\u540e\u53d6\u8bc1&rdquo;\u8dc3\u5347\u4e3a&rdquo;\u5b9e\u65f6\u8bca\u65ad&rdquo;\u3002 \u4e00\u3001\u4f20\u7edf\u65e5\u5fd7\u805a\u5408\u7684\u4e09\u5927\u6548\u80fd\u74f6\u9888 \u5728\u6df1\u5165\u63a2\u8ba8eBPF\u7684\u9769\u65b0\u4ef7\u503c\u524d\uff0c\u6211\u4eec\u9700\u8981\u6b63\u89c6\u4f20\u7edf\u65b9\u6848\u7684\u56fa\u6709\u7f3a\u9677\u3002\u57fa\u4e8esyslog\u6216\u6587\u4ef6\u91c7\u96c6\u7684\u65e5\u5fd7\u7cfb\u7edf\u5f80\u5f80\u9762\u4e34\uff1a \u6027\u80fd\u635f\u8017\u6096\u8bba\uff1a\u67d0\u4e91\u670d\u52a1\u5546\u7684\u6d4b\u8bd5\u6570\u636e\u663e\u793a\uff0c\u5f53\u65e5\u5fd7\u91c7\u96c6\u9891\u7387\u8d85\u8fc75000\u6761\/\u79d2\u65f6\uff0c\u57fa\u4e8e\u7528\u6237\u6001\u4ee3\u7406\u7684\u65b9\u6848\u4f1a\u5bfc\u81f4\u5e94\u7528\u541e\u5410\u91cf\u4e0b\u964d23%\u3002\u8fd9\u79cd\u4e3a\u83b7\u53d6\u53ef\u89c2\u6d4b\u6027\u800c\u727a\u7272\u4e1a\u52a1\u6027\u80fd\u7684\u56f0\u5883\uff0c\u5728\u5173\u952e\u7cfb\u7edf\u4e2d\u5c24\u4e3a\u7a81\u51fa\u3002 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Berkeley Packet Filter\uff09\u901a\u8fc7\u6c99\u7bb1\u673a\u5236\u5728\u5185\u6838\u7a7a\u95f4\u8fd0\u884c\u9a8c\u8bc1\u8fc7\u7684\u7a0b\u5e8f\uff0c\u8fd9\u79cd\u67b6\u6784\u8d4b\u4e88\u5176\u72ec\u7279\u7684\u4f18\u52bf\uff1a \u96f6\u62f7\u8d1d\u6570\u636e\u6355\u83b7\uff1a\u5728\u5185\u6838\u5c42\u76f4\u63a5\u89e3\u6790\u7f51\u7edc\u5305\u6216\u7cfb\u7edf\u8c03\u7528\uff0c\u907f\u514d\u5c06\u6570\u636e\u590d\u5236\u5230\u7528\u6237\u6001\u7684\u5f00\u9500\u3002Facebook\u7684\u6d4b\u8bd5\u8868\u660e\uff0c\u8fd9\u79cd\u65b9\u6cd5\u80fd\u964d\u4f4e73%\u7684CPU\u5229\u7528\u7387\u3002 \u52a8\u6001\u63a2\u9488\u6280\u672f\uff1a\u65e0\u9700\u91cd\u542f\u670d\u52a1\u6216\u4fee\u6539\u4ee3\u7801\uff0c\u5373\u53ef\u5728\u5173\u952e\u51fd\u6570\u5165\u53e3\/\u51fa\u53e3\u6ce8\u5165\u89c2\u6d4b\u903b\u8f91\u3002\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u7ebf\u4e0a\u751f\u4ea7\u73af\u5883\u4e2d\u7684Go\u8bed\u8a00\u5fae\u670d\u52a1\u81f3\u5173\u91cd\u8981\u3002 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\u7f51\u7edc\u6545\u969c\u8bca\u65ad\uff1a\u67d0\u89c6\u9891\u6d41\u5a92\u4f53\u5e73\u53f0\u90e8\u7f72eBPF\u540e\uff0c\u6210\u529f\u5c06QUIC\u534f\u8bae\u63e1\u624b\u5931\u8d25\u7684\u6392\u67e5\u65f6\u95f4\u4ece\u5e73\u57474.2\u5c0f\u65f6\u7f29\u77ed\u81f311\u5206\u949f\u3002\u5173\u952e\u5728\u4e8e\u6355\u83b7\u4e86\u5185\u6838\u4e2dTLS\u63e1\u624b\u7684\u8be6\u7ec6\u72b6\u6001\u673a\u53d8\u8fc1\u3002 \u5b89\u5168\u5ba1\u8ba1\u589e\u5f3a\uff1a\u901a\u8fc7\u76d1\u63a7execve\u7cfb\u7edf\u8c03\u7528\uff0c\u67d0\u94f6\u884c\u7684\u5b89\u5168\u56e2\u961f\u6784\u5efa\u4e86\u8fdb\u7a0b\u884c\u4e3a\u753b\u50cf\u7cfb\u7edf\u3002\u4e0e\u4f20\u7edf\u7684auditd\u65b9\u6848\u76f8\u6bd4\uff0cCPU\u5360\u7528\u7387\u964d\u4f4e82%\uff0c\u540c\u65f6\u68c0\u6d4b\u52303\u500d\u4ee5\u4e0a\u7684\u53ef\u7591\u884c\u4e3a\u3002 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