{"id":36207,"date":"2025-03-26T14:29:52","date_gmt":"2025-03-26T06:29:52","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=36207"},"modified":"2025-03-26T14:29:52","modified_gmt":"2025-03-26T06:29:52","slug":"ebpf%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e9%ab%98%e6%95%88%e7%9a%84%e8%bf%9b%e7%a8%8b%e9%97%b4%e9%80%9a%e4%bf%a1%e7%9b%91%e6%8e%a7%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/36207.html","title":{"rendered":"eBPF\u5982\u4f55\u5b9e\u73b0\u9ad8\u6548\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\u76d1\u63a7\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/www.yunshan.net\/blog\/wp-content\/uploads\/2025\/03\/Cdfk4Qro0.jpg\" alt=\"eBPF\u5982\u4f55\u5b9e\u73b0\u9ad8\u6548\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\u76d1\u63a7\uff1f\" ><\/p>\n<\/p>\n<hr>\n<p>\u5728\u5f53\u4eca\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e0e\u5fae\u670d\u52a1\u67b6\u6784\u76db\u884c\u7684\u65f6\u4ee3\uff0c<strong>\u8fdb\u7a0b\u95f4\u901a\u4fe1\uff08IPC\uff09<\/strong>\u7684\u6548\u7387\u4e0e\u5b89\u5168\u6027\u5df2\u6210\u4e3a\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\u4e0e\u6545\u969c\u6392\u67e5\u7684\u6838\u5fc3\u8bae\u9898\u3002\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\u5982<code>strace<\/code>\u6216<code>netstat<\/code>\u867d\u80fd\u63d0\u4f9b\u57fa\u7840\u6570\u636e\uff0c\u4f46\u9762\u5bf9\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u7684\u5e94\u7528\u573a\u666f\u65f6\uff0c\u5e38\u56e0<strong>\u9ad8\u5f00\u9500<\/strong>\u6216<strong>\u4fe1\u606f\u788e\u7247\u5316<\/strong>\u800c\u6349\u895f\u89c1\u8098\u3002\u6b64\u65f6\uff0c<strong><a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09<\/strong>\u51ed\u501f\u5176<strong>\u5185\u6838\u7ea7\u89c2\u6d4b\u80fd\u529b<\/strong>\u4e0e<strong>\u8fd1\u4e4e\u96f6\u7684\u6027\u80fd\u635f\u8017<\/strong>\uff0c\u6b63\u6210\u4e3a\u89e3\u51b3\u8fd9\u4e00\u96be\u9898\u7684\u98a0\u8986\u6027\u6280\u672f\u3002<\/p>\n<hr>\n<h3 id=\"\u4e00-\u8fdb\u7a0b\u95f4\u901a\u4fe1\u76d1\u63a7\u7684\u6311\u6218-\u4e3a\u4f55\u9700\u8981ebpf\">\u4e00\u3001\u8fdb\u7a0b\u95f4\u901a\u4fe1\u76d1\u63a7\u7684\u6311\u6218\uff1a\u4e3a\u4f55\u9700\u8981<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\uff1f<\/h3>\n<p>\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u8fdb\u7a0b\u95f4\u901a\u4fe1\u673a\u5236\u590d\u6742\u591a\u6837\uff0c\u5305\u62ec<strong>\u7ba1\u9053\uff08Pipe\uff09<\/strong>\u3001<strong>\u4fe1\u53f7\uff08Signal\uff09<\/strong>\u3001<strong>\u5171\u4eab\u5185\u5b58\uff08Shared Memory\uff09<\/strong>\u3001<strong>\u5957\u63a5\u5b57\uff08Socket\uff09<\/strong>\u7b49\u3002\u4f20\u7edf\u76d1\u63a7\u624b\u6bb5\u9762\u4e34\u4e09\u91cd\u56f0\u5883\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u6027\u80fd\u635f\u8017\u4e0e\u53ef\u6269\u5c55\u6027\u74f6\u9888<\/strong><br \/>\n\u57fa\u4e8e\u7cfb\u7edf\u8c03\u7528\u7684\u76d1\u63a7\u5de5\u5177\uff08\u5982<code>strace<\/code>\uff09\u901a\u8fc7\u62e6\u622a<code>syscall<\/code>\u5b9e\u73b0\uff0c\u4f46\u9891\u7e41\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u4f1a\u5bfc\u81f4<strong>CPU\u5360\u7528\u7387\u98d9\u5347<\/strong>\u3002\u4f8b\u5982\uff0c\u5728\u6bcf\u79d2\u5904\u7406\u6570\u4e07\u6b21IPC\u8bf7\u6c42\u7684\u7cfb\u7edf\u4e2d\uff0c<code>strace<\/code>\u53ef\u80fd\u4f7f\u6027\u80fd\u4e0b\u964d\u8d85\u8fc750%\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u76d1\u63a7\u7c92\u5ea6\u4e0e\u5b9e\u65f6\u6027\u4e0d\u8db3<\/strong><br \/>\n\u591a\u6570\u5de5\u5177\u4ec5\u80fd\u6355\u83b7\u901a\u4fe1\u7684\u201c\u8d77\u70b9\u201d\u4e0e\u201c\u7ec8\u70b9\u201d\uff0c\u96be\u4ee5\u8ffd\u8e2a\u5b8c\u6574\u7684<strong>\u6570\u636e\u6d41\u8def\u5f84<\/strong>\u3002\u4f8b\u5982\uff0c\u5171\u4eab\u5185\u5b58\u901a\u4fe1\u7684\u8bfb\u5199\u65f6\u5e8f\u3001Socket\u901a\u4fe1\u4e2d\u7684\u4e22\u5305\u91cd\u4f20\u7b49\u7ec6\u8282\u5e38\u88ab\u9057\u6f0f\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u52a8\u6001\u5316\u90e8\u7f72\u7684\u5c40\u9650\u6027<\/strong><br \/>\n\u4fee\u6539\u5e94\u7528\u4ee3\u7801\u6216\u91cd\u542f\u670d\u52a1\u4ee5\u690d\u5165\u76d1\u63a7\u903b\u8f91\uff0c\u5728\u4e91\u539f\u751f\u73af\u5883\u4e2d\u51e0\u4e4e\u4e0d\u53ef\u884c\u3002\u800ceBPF\u652f\u6301<strong>\u52a8\u6001\u52a0\u8f7d\u7a0b\u5e8f\u5230\u5185\u6838<\/strong>\uff0c\u65e0\u9700\u505c\u673a\u5373\u53ef\u5b9e\u73b0\u5168\u94fe\u8def\u89c2\u6d4b\u3002<\/p>\n<\/li>\n<\/ol>\n<hr>\n<h3 id=\"\u4e8c-ebpf\u7684\u6838\u5fc3\u4f18\u52bf-\u4ece\u6570\u636e\u5e73\u9762\u5230\u63a7\u5236\u5e73\u9762\u7684\u9769\u65b0\">\u4e8c\u3001eBPF\u7684\u6838\u5fc3\u4f18\u52bf\uff1a\u4ece\u6570\u636e\u5e73\u9762\u5230\u63a7\u5236\u5e73\u9762\u7684\u9769\u65b0<\/h3>\n<p>eBPF\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u8fd0\u884c<strong>\u6c99\u76d2\u5316\u7a0b\u5e8f<\/strong>\uff0c\u76f4\u63a5\u8bbf\u95ee\u7cfb\u7edf\u8c03\u7528\u3001\u7f51\u7edc\u6808\u7b49\u5e95\u5c42\u8d44\u6e90\uff0c\u5176\u9ad8\u6548\u6027\u6e90\u4e8e\u4e09\u5927\u8bbe\u8ba1\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u96f6\u62f7\u8d1d\uff08Zero-Copy\uff09\u6570\u636e\u91c7\u96c6<\/strong><br \/>\neBPF\u7a0b\u5e8f\u5728\u5185\u6838\u6001\u5b8c\u6210\u6570\u636e\u8fc7\u6ee4\u4e0e\u805a\u5408\uff0c\u4ec5\u5c06\u5173\u952e\u5143\u6570\u636e\uff08\u5982\u8fdb\u7a0bPID\u3001\u901a\u4fe1\u8017\u65f6\u3001\u6570\u636e\u5927\u5c0f\uff09\u4f20\u9012\u81f3\u7528\u6237\u6001\u3002\u4ee5<strong>\u5171\u4eab\u5185\u5b58\u76d1\u63a7<\/strong>\u4e3a\u4f8b\uff0ceBPF\u53ef\u7ed5\u8fc7\u591a\u6b21\u5185\u5b58\u590d\u5236\uff0c\u76f4\u63a5\u89e3\u6790<code>shmget<\/code>\u4e0e<code>shmat<\/code>\u7684\u7cfb\u7edf\u8c03\u7528\u53c2\u6570\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e8b\u4ef6\u9a71\u52a8\u7684\u7cbe\u51c6\u6302\u94a9\uff08Hooking\uff09<\/strong><br \/>\n\u901a\u8fc7<code>tracepoints<\/code>\u3001<code>kprobes<\/code>\u3001<code>uprobes<\/code>\u7b49\u673a\u5236\uff0ceBPF\u80fd\u5728\u7279\u5b9a\u5185\u6838\/\u7528\u6237\u6001\u51fd\u6570\u6267\u884c\u65f6\u89e6\u53d1\u76d1\u63a7\u903b\u8f91\u3002\u4f8b\u5982\uff1a<\/p>\n<\/li>\n<\/ol>\n<ul>\n<li>\u4f7f\u7528<code>kprobe<\/code>\u6302\u94a9<code>__x64_sys_sendmsg<\/code>\u4ee5\u6355\u83b7Socket\u53d1\u9001\u884c\u4e3a\n<\/li>\n<li>\u901a\u8fc7<code>uprobe<\/code>\u6ce8\u5165\u7528\u6237\u6001\u5e93\u51fd\u6570\uff08\u5982<code>pthread_mutex_lock<\/code>\uff09\u5206\u6790\u9501\u7ade\u4e89\u5bf9IPC\u7684\u5f71\u54cd\n<\/li>\n<\/ul>\n<ol>\n<li><strong>\u5b89\u5168\u4e14\u53ef\u7f16\u7a0b\u7684\u8fc7\u6ee4\u673a\u5236<\/strong><br \/>\neBPF\u9a8c\u8bc1\u5668\uff08Verifier\uff09\u786e\u4fdd\u7a0b\u5e8f\u4e0d\u4f1a\u5bfc\u81f4\u5185\u6838\u5d29\u6e83\uff0c\u540c\u65f6\u5141\u8bb8\u5f00\u53d1\u8005\u7f16\u5199\u590d\u6742\u8fc7\u6ee4\u903b\u8f91\u3002\u4f8b\u5982\uff0c\u4ec5\u76d1\u63a7\u8de8\u5bb9\u5668\u7684Socket\u901a\u4fe1\uff0c\u6216\u5ffd\u7565\u5fc3\u8df3\u5305\u7b49\u4f4e\u4ef7\u503c\u6570\u636e\u3002\n<\/li>\n<\/ol>\n<hr>\n<h3 id=\"\u4e09-\u5b9e\u6218\u89e3\u6790-ebpf\u76d1\u63a7\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u56db\u5927\u573a\u666f\">\u4e09\u3001\u5b9e\u6218\u89e3\u6790\uff1aeBPF\u76d1\u63a7\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u56db\u5927\u573a\u666f<\/h3>\n<h4 id=\"\u573a\u666f1-\u5b9e\u65f6\u8ffd\u8e2asocket\u901a\u4fe1\u4e2d\u7684\u5ef6\u8fdf\u5f02\u5e38\">\u573a\u666f1\uff1a\u5b9e\u65f6\u8ffd\u8e2aSocket\u901a\u4fe1\u4e2d\u7684\u5ef6\u8fdf\u5f02\u5e38<\/h4>\n<p>\u901a\u8fc7\u6302\u94a9<code>tcp_retransmit_skb<\/code>\u4e0e<code>tcp_receive<\/code>\u51fd\u6570\uff0ceBPF\u53ef\u7edf\u8ba1TCP\u91cd\u4f20\u6b21\u6570\u4e0e\u7aef\u5230\u7aef\u5ef6\u8fdf\u3002\u7ed3\u5408\u8fdb\u7a0b\u7684<code>cgroup<\/code>\u4fe1\u606f\uff0c\u80fd\u5feb\u901f\u5b9a\u4f4dKubernetes Pod\u95f4\u7684\u7f51\u7edc\u74f6\u9888\u3002\u5f00\u6e90\u5de5\u5177<strong>BCC\uff08BPF Compiler Collection\uff09<\/strong>\u4e2d\u7684<code>tcpretrans<\/code>\u5de5\u5177\u5373\u57fa\u4e8e\u6b64\u539f\u7406\u5b9e\u73b0\u3002<\/p>\n<h4 id=\"\u573a\u666f2-\u7cbe\u7ec6\u5316\u5206\u6790\u5171\u4eab\u5185\u5b58\u4e89\u7528\">\u573a\u666f2\uff1a\u7cbe\u7ec6\u5316\u5206\u6790\u5171\u4eab\u5185\u5b58\u4e89\u7528<\/h4>\n<p>\u5171\u4eab\u5185\u5b58\u867d\u9ad8\u6548\uff0c\u4f46\u540c\u6b65\u673a\u5236\uff08\u5982\u4fe1\u53f7\u91cf\uff09\u7684\u6ee5\u7528\u6613\u5f15\u53d1\u6027\u80fd\u95ee\u9898\u3002eBPF\u53ef\u76d1\u63a7<code>semop<\/code>\u7cfb\u7edf\u8c03\u7528\u7684\u7b49\u5f85\u65f6\u95f4\uff0c\u5e76\u5173\u8054\u81f3\u8fdb\u7a0b\u7684\u8c03\u5ea6\u72b6\u6001\uff08\u901a\u8fc7<code>task_struct<\/code>\u7ed3\u6784\u4f53\uff09\u3002\u67d0\u5934\u90e8\u4e91\u5382\u5546\u66fe\u501f\u6b64\u5c06\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u7684\u9501\u51b2\u7a81\u964d\u4f4e40%\u3002<\/p>\n<h4 id=\"\u573a\u666f3-\u8de8\u547d\u540d\u7a7a\u95f4\u7684\u7ba1\u9053\u901a\u4fe1\u5ba1\u8ba1\">\u573a\u666f3\uff1a\u8de8\u547d\u540d\u7a7a\u95f4\u7684\u7ba1\u9053\u901a\u4fe1\u5ba1\u8ba1<\/h4>\n<p>\u5728\u5bb9\u5668\u73af\u5883\u4e2d\uff0c\u7ba1\u9053\u901a\u4fe1\u53ef\u80fd\u8de8\u8d8a\u591a\u4e2a\u547d\u540d\u7a7a\u95f4\uff08Network\/PID\/Mount\uff09\u3002eBPF\u901a\u8fc7\u89e3\u6790<code>pipe_write<\/code>\u4e0e<code>pipe_read<\/code>\u7684<code>file_operations<\/code>\u7ed3\u6784\uff0c\u7ed3\u5408<code>ns_get_parent<\/code>\u51fd\u6570\u8ffd\u8e2a\u8de8\u547d\u540d\u7a7a\u95f4\u7684IPC\u6d41\u91cf\uff0c\u5b9e\u73b0\u7ec6\u7c92\u5ea6\u6743\u9650\u63a7\u5236\u3002<\/p>\n<h4 id=\"\u573a\u666f4-rpc\u6846\u67b6\u7684\u900f\u660e\u5316\u6027\u80fd\u5256\u6790\">\u573a\u666f4\uff1aRPC\u6846\u67b6\u7684\u900f\u660e\u5316\u6027\u80fd\u5256\u6790<\/h4>\n<p>\u9488\u5bf9gRPC\u3001Thrift\u7b49RPC\u6846\u67b6\uff0ceBPF\u53ef\u901a\u8fc7\u7528\u6237\u6001\u63a2\u9488\uff08uprobe\uff09\u6ce8\u5165\u5230\u5e8f\u5217\u5316\/\u53cd\u5e8f\u5217\u5316\u51fd\u6570\u4e2d\uff0c\u7edf\u8ba1\u5404\u670d\u52a1\u7684\u8bf7\u6c42\u5904\u7406\u5ef6\u8fdf\u3002\u4f8b\u5982\uff0ceBay\u7684<strong>Kindling<\/strong>\u9879\u76ee\u5229\u7528eBPF\u5b9e\u73b0\u4e86\u5bf9Service Mesh\u7684\u65e0\u4fb5\u5165\u89c2\u6d4b\u3002<\/p>\n<hr>\n<h3 id=\"\u56db-\u6027\u80fd\u5bf9\u6bd4-ebpf-vs-\u4f20\u7edf\u5de5\u5177\u7684\u91cf\u5316\u4f18\u52bf\">\u56db\u3001\u6027\u80fd\u5bf9\u6bd4\uff1aeBPF vs \u4f20\u7edf\u5de5\u5177\u7684\u91cf\u5316\u4f18\u52bf<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6307\u6807<\/th>\n<th>eBPF\u65b9\u6848<\/th>\n<th>\u4f20\u7edf\u5de5\u5177\uff08\u5982strace\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CPU\u5360\u7528\u7387<\/td>\n<td>&lt; 3%<\/td>\n<td>20%~50%<\/td>\n<\/tr>\n<tr>\n<td>\u4e8b\u4ef6\u5ef6\u8fdf<\/td>\n<td>\u5fae\u79d2\u7ea7<\/td>\n<td>\u6beb\u79d2\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u91c7\u96c6\u7c92\u5ea6<\/td>\n<td>\u51fd\u6570\u7ea7\u53c2\u6570<\/td>\n<td>\u7cfb\u7edf\u8c03\u7528\u7ea7<\/td>\n<\/tr>\n<tr>\n<td>\u52a8\u6001\u542f\u505c\u652f\u6301<\/td>\n<td>\u662f<\/td>\n<td>\u5426<\/td>\n<\/tr>\n<tr>\n<td>\u5185\u6838\u7248\u672c\u517c\u5bb9\u6027<\/td>\n<td>\u2265 4.9\uff08\u90e8\u5206\u7279\u6027\u9700\u22655.0\uff09<\/td>\n<td>\u4f9d\u8d56\u5de5\u5177\u7248\u672c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>\uff08\u6570\u636e\u6765\u6e90\uff1aBrendan Gregg\u7684\u300aBPF Performance Tools\u300b\u53ca\u5b9e\u9645\u538b\u6d4b\u6848\u4f8b\uff09<\/em><\/p>\n<hr>\n<h3 id=\"\u4e94-\u6700\u4f73\u5b9e\u8df5-\u6784\u5efa\u9ad8\u6548ipc\u76d1\u63a7\u7cfb\u7edf\u7684\u5173\u952e\u6b65\u9aa4\">\u4e94\u3001\u6700\u4f73\u5b9e\u8df5\uff1a\u6784\u5efa\u9ad8\u6548IPC\u76d1\u63a7\u7cfb\u7edf\u7684\u5173\u952e\u6b65\u9aa4<\/h3>\n<ol>\n<li>\n<p><strong>\u660e\u786e\u76d1\u63a7\u76ee\u6807<\/strong><br \/>\n\u533a\u5206\u201c\u6027\u80fd\u5206\u6790\u201d\u4e0e\u201c\u5b89\u5168\u5ba1\u8ba1\u201d\u573a\u666f\u3002\u524d\u8005\u9700\u5173\u6ce8\u65f6\u5ef6\u3001\u541e\u5410\u91cf\u7b49\u6307\u6807\uff0c\u540e\u8005\u9700\u8bb0\u5f55\u5b8c\u6574\u7684\u901a\u4fe1\u5143\u6570\u636e\uff08\u5982\u8fdb\u7a0bUID\u3001\u76ee\u6807IP\uff09\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9009\u62e9\u6070\u5f53\u7684Hook\u70b9<\/strong><br \/>\n\u907f\u514d\u8fc7\u5ea6\u6302\u94a9\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002\u4f8b\u5982\uff1a<\/p>\n<\/li>\n<\/ol>\n<ul>\n<li>\u4ec5\u76d1\u63a7<code>connect<\/code>\/<code>accept<\/code>\u800c\u975e\u6240\u6709Socket\u64cd\u4f5c\n<\/li>\n<li>\u4f7f\u7528<code>raw_tracepoint<\/code>\u66ff\u4ee3<code>kprobe<\/code>\u4ee5\u63d0\u5347\u6267\u884c\u6548\u7387\n<\/li>\n<\/ul>\n<ol>\n<li>\n<p><strong>\u8bbe\u8ba1\u9ad8\u6548\u7684\u6570\u636e\u7ed3\u6784<\/strong><br \/>\neBPF\u7a0b\u5e8f\u5e38\u4f7f\u7528<code>perf_event<\/code>\u73af\u5f62\u7f13\u51b2\u533a\u6216<code>BPF_MAP<\/code>\u4f20\u9012\u6570\u636e\u3002\u5bf9\u4e8e\u9ad8\u541e\u5410\u573a\u666f\uff0c\u63a8\u8350\u5c06\u6570\u636e\u805a\u5408\u5728\u5185\u6838\u6001\uff0c\u7528\u6237\u6001\u4ec5\u5b9a\u671f\u62c9\u53d6\u7edf\u8ba1\u7ed3\u679c\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4e0e\u73b0\u6709\u76d1\u63a7\u4f53\u7cfb\u96c6\u6210<\/strong><br \/>\n\u901a\u8fc7<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\u5bfc\u51faeBPF\u91c7\u96c6\u7684\u6307\u6807\uff0c\u6216\u5728Grafana\u4e2d\u53ef\u89c6\u5316IPC\u62d3\u6251\u5173\u7cfb\u3002\u5f00\u6e90\u9879\u76ee<strong>Pixie<\/strong>\u5df2\u5b9e\u73b0\u6b64\u7c7b\u65b9\u6848\u7684\u81ea\u52a8\u5316<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5f53\u4eca\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e0e\u5fae\u670d\u52a1\u67b6\u6784\u76db\u884c\u7684\u65f6\u4ee3\uff0c\u8fdb\u7a0b\u95f4\u901a\u4fe1\uff08IPC\uff09\u7684\u6548\u7387\u4e0e\u5b89\u5168\u6027\u5df2\u6210\u4e3a\u7cfb\u7edf\u6027\u80fd\u8c03\u4f18\u4e0e\u6545\u969c\u6392\u67e5\u7684\u6838\u5fc3\u8bae\u9898\u3002\u4f20\u7edf\u76d1\u63a7\u5de5\u5177\u5982strace\u6216netstat\u867d\u80fd\u63d0\u4f9b\u57fa\u7840\u6570\u636e\uff0c\u4f46\u9762\u5bf9\u9ad8\u5e76\u53d1\u3001\u4f4e\u5ef6\u8fdf\u7684\u5e94\u7528\u573a\u666f\u65f6\uff0c\u5e38\u56e0\u9ad8\u5f00\u9500\u6216\u4fe1\u606f\u788e\u7247\u5316\u800c\u6349\u895f\u89c1\u8098\u3002\u6b64\u65f6\uff0ceBPF\uff08Extended 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[&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":36208,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-36207","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/36207","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/comments?post=36207"}],"version-history":[{"count":1,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/36207\/revisions"}],"predecessor-version":[{"id":36209,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/36207\/revisions\/36209"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/36208"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=36207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=36207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=36207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}