{"id":33686,"date":"2025-03-07T10:59:26","date_gmt":"2025-03-07T02:59:26","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=33686"},"modified":"2025-03-07T10:59:26","modified_gmt":"2025-03-07T02:59:26","slug":"ebpf%e5%a6%82%e4%bd%95%e5%b8%ae%e5%8a%a9%e4%bc%98%e5%8c%96%e5%ad%98%e5%82%a8%e7%b3%bb%e7%bb%9f%e7%9a%84%e6%80%a7%e8%83%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/33686.html","title":{"rendered":"eBPF\u5982\u4f55\u5e2e\u52a9\u4f18\u5316\u5b58\u50a8\u7cfb\u7edf\u7684\u6027\u80fd\uff1f"},"content":{"rendered":"<p style=\"text-align: center;\">\n<p><img decoding=\"async\" src=\"https:\/\/www.yunshan.net\/blog\/wp-content\/uploads\/2025\/03\/Hy8a9I0.jpg\" alt=\"eBPF\u5982\u4f55\u5e2e\u52a9\u4f18\u5316\u5b58\u50a8\u7cfb\u7edf\u7684\u6027\u80fd\uff1f\" ><\/p>\n<\/p>\n<hr>\n<p>\u5728\u4e91\u8ba1\u7b97\u4e0e\u5206\u5e03\u5f0f\u7cfb\u7edf\u9ad8\u901f\u53d1\u5c55\u7684\u4eca\u5929\uff0c\u5b58\u50a8\u7cfb\u7edf\u4f5c\u4e3a\u6570\u636e\u5904\u7406\u7684\u57fa\u77f3\uff0c\u5176\u6027\u80fd\u74f6\u9888\u76f4\u63a5\u5f71\u54cd\u7740\u6570\u636e\u5e93\u54cd\u5e94\u901f\u5ea6\u3001AI\u8bad\u7ec3\u6548\u7387\u751a\u81f3\u7528\u6237\u4f53\u9a8c\u3002\u4f20\u7edf\u4f18\u5316\u624b\u6bb5\u5f80\u5f80\u4f9d\u8d56\u9759\u6001\u65e5\u5fd7\u5206\u6790\u6216\u4fb5\u5165\u5f0f\u5185\u6838\u6a21\u5757\u5f00\u53d1\uff0c\u4e0d\u4ec5\u5b9e\u65f6\u6027\u5dee\uff0c\u8fd8\u53ef\u80fd\u56e0\u9891\u7e41\u7684\u4ee3\u7801\u4fee\u6539\u5f15\u5165\u7a33\u5b9a\u6027\u98ce\u9669\u3002<strong>\u800c<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\uff08Extended Berkeley Packet Filter\uff09\u6280\u672f\u7684\u5d1b\u8d77\uff0c\u4e3a\u5b58\u50a8\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u4e86\u4e00\u79cd\u9769\u547d\u6027\u7684\u52a8\u6001\u89c2\u6d4b\u4e0e\u5e72\u9884\u673a\u5236<\/strong>\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u591f\u5728\u4e0d\u91cd\u542f\u670d\u52a1\u3001\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u7801\u7684\u524d\u63d0\u4e0b\uff0c\u4ee5\u4e9a\u6beb\u79d2\u7ea7\u7cbe\u5ea6\u900f\u89c6\u5b58\u50a8I\/O\u5168\u94fe\u8def\u3002<\/p>\n<hr>\n<h3 id=\"\u4e00-ebpf-\u91cd\u65b0\u5b9a\u4e49\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027\">\u4e00\u3001<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">eBPF<\/a>\uff1a\u91cd\u65b0\u5b9a\u4e49\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027<\/h3>\n<p><strong>eBPF\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u8fd0\u884c\u5728Linux\u5185\u6838\u7684\u9ad8\u6548\u865a\u62df\u673a<\/strong>\uff0c\u5141\u8bb8\u7528\u6237\u5c06\u81ea\u5b9a\u4e49\u7a0b\u5e8f\u6ce8\u5165\u5185\u6838\u6267\u884c\u3002\u4e0e\u4f20\u7edf\u7684\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a\u5de5\u5177\uff08\u5982strace\uff09\u76f8\u6bd4\uff0ceBPF\u5177\u5907\u4e09\u4e2a\u6838\u5fc3\u4f18\u52bf\uff1a<\/p>\n<ol>\n<li><strong>\u5b89\u5168\u6027<\/strong>\uff1a\u901a\u8fc7\u4e25\u683c\u7684\u9a8c\u8bc1\u673a\u5236\u786e\u4fdd\u7a0b\u5e8f\u4e0d\u4f1a\u5bfc\u81f4\u5185\u6838\u5d29\u6e83\uff1b\n<\/li>\n<li><strong>\u9ad8\u6548\u6027<\/strong>\uff1a\u7a0b\u5e8f\u7f16\u8bd1\u4e3a\u5b57\u8282\u7801\u540e\u7531JIT\u7f16\u8bd1\u5668\u8f6c\u6362\u4e3a\u673a\u5668\u7801\uff0c\u6027\u80fd\u635f\u8017\u4f4e\u4e8e1%\uff1b\n<\/li>\n<li><strong>\u7075\u6d3b\u6027<\/strong>\uff1a\u652f\u6301\u52a8\u6001\u52a0\u8f7d\u548c\u5378\u8f7d\uff0c\u8986\u76d6\u4ece\u7f51\u7edc\u5230\u5b58\u50a8\u7684\u5168\u6808\u89c2\u6d4b\u573a\u666f\u3002\n<\/li>\n<\/ol>\n<p>\u5728\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u4e9b\u7279\u6027\u4f7f\u5f97eBPF\u80fd\u591f\u5b9e\u65f6\u6355\u83b7\u5757\u8bbe\u5907I\/O\u8bf7\u6c42\u3001\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\u3001Page Cache\u884c\u4e3a\u7b49\u5173\u952e\u6307\u6807\u3002\u4f8b\u5982\uff0c\u901a\u8fc7<strong>BCC\uff08BPF Compiler Collection\uff09\u5de5\u5177\u96c6<\/strong>\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u7528Python\u811a\u672c\u76f4\u63a5\u8c03\u7528eBPF\u7a0b\u5e8f\uff0c\u751f\u6210\u5b58\u50a8\u5ef6\u8fdf\u70ed\u529b\u56fe\uff0c\u7cbe\u51c6\u5b9a\u4f4d\u6162\u901f\u78c1\u76d8\u6216\u5f02\u5e38\u9501\u7ade\u4e89\u3002<\/p>\n<hr>\n<h3 id=\"\u4e8c-\u7a7f\u900f\u5b58\u50a8\u5806\u6808-\u4ece\u9ed1\u76d2\u5230\u767d\u76d2\u7684\u8dc3\u8fc1\">\u4e8c\u3001\u7a7f\u900f\u5b58\u50a8\u5806\u6808\uff1a\u4ece\u9ed1\u76d2\u5230\u767d\u76d2\u7684\u8dc3\u8fc1<\/h3>\n<h4 id=\"1-i-o\u8def\u5f84\u5168\u94fe\u8def\u8ddf\u8e2a\">1. <strong>I\/O\u8def\u5f84\u5168\u94fe\u8def\u8ddf\u8e2a<\/strong><\/h4>\n<p>\u4f20\u7edf\u5b58\u50a8\u6027\u80fd\u5206\u6790\u5de5\u5177\uff08\u5982iostat\uff09\u4ec5\u80fd\u63d0\u4f9b\u78c1\u76d8\u7ea7\u522b\u7684\u805a\u5408\u6570\u636e\uff0c\u800ceBPF\u53ef\u5c06\u89c2\u6d4b\u7c92\u5ea6\u7ec6\u5316\u5230\u5355\u4e2aI\/O\u8bf7\u6c42\u3002\u901a\u8fc7\u6302\u94a9<code>blk_mq_start_request<\/code>\u548c<code>blk_account_io_done<\/code>\u7b49\u5185\u6838\u51fd\u6570\uff0c\u80fd\u591f\u8bb0\u5f55\u6bcf\u4e2aI\/O\u7684\u53d1\u8d77\u65f6\u95f4\u3001\u5b8c\u6210\u65f6\u95f4\u3001\u76ee\u6807\u8bbe\u5907\u3001\u6570\u636e\u5927\u5c0f\u7b49\u5143\u6570\u636e\u3002<strong>\u8fd9\u79cd\u7ec6\u7c92\u5ea6\u8ffd\u8e2a\u80fd\u529b\u4f7f\u5f97\u201c\u5e7d\u7075\u5ef6\u8fdf\u201d\uff08Phantom Latency\uff09\u65e0\u6240\u9041\u5f62<\/strong>\u2014\u2014\u4f8b\u5982\uff0c\u67d0\u6b21\u5199\u64cd\u4f5c\u56e0Journaling\u673a\u5236\u88ab\u62c6\u5206\u591a\u6b21\u63d0\u4ea4\uff0ceBPF\u53ef\u76f4\u63a5\u5173\u8054\u5b50\u64cd\u4f5c\u4e0e\u7236\u8bf7\u6c42\uff0c\u66b4\u9732\u9690\u85cf\u7684\u6392\u961f\u5ef6\u8fdf\u3002<\/p>\n<h4 id=\"2-\u6587\u4ef6\u7cfb\u7edf\u884c\u4e3a\u753b\u50cf\">2. <strong>\u6587\u4ef6\u7cfb\u7edf\u884c\u4e3a\u753b\u50cf<\/strong><\/h4>\n<p>\u6587\u4ef6\u7cfb\u7edf\uff08\u5982Ext4\u3001XFS\uff09\u7684\u590d\u6742\u903b\u8f91\uff08\u5982\u65e5\u5fd7\u63d0\u4ea4\u3001\u5143\u6570\u636e\u66f4\u65b0\uff09\u5e38\u6210\u4e3a\u6027\u80fd\u74f6\u9888\u3002\u5229\u7528eBPF\u7684<strong>kprobe\/uprobe<\/strong>\u529f\u80fd\uff0c\u53ef\u52a8\u6001\u6ce8\u5165\u63a2\u9488\u5230<code>ext4_write_begin<\/code>\u6216<code>xfs_file_write_iter<\/code>\u7b49\u51fd\u6570\uff0c\u7edf\u8ba1\u5199\u653e\u5927\u7cfb\u6570\u3001\u5143\u6570\u636e\u64cd\u4f5c\u5360\u6bd4\u7b49\u5173\u952e\u6307\u6807\u3002\u67d0\u5206\u5e03\u5f0f\u5b58\u50a8\u4f01\u4e1a\u66fe\u501f\u6b64\u53d1\u73b0\uff1a\u5176EXT4\u683c\u5f0f\u7684SSD\u56e0\u9ed8\u8ba4\u542f\u7528<code>data=ordered<\/code>\u6a21\u5f0f\uff0c\u5bfc\u81f430%\u7684\u5199\u5165\u8bf7\u6c42\u989d\u5916\u89e6\u53d1\u5143\u6570\u636e\u63d0\u4ea4\uff0c\u6539\u7528<code>data=writeback<\/code>\u540e\u6574\u4f53\u541e\u5410\u91cf\u63d0\u534722%\u3002<\/p>\n<hr>\n<h3 id=\"\u4e09-\u52a8\u6001\u8c03\u4f18-\u4ece\u89c2\u6d4b\u5230\u5e72\u9884\u7684\u95ed\u73af\">\u4e09\u3001\u52a8\u6001\u8c03\u4f18\uff1a\u4ece\u89c2\u6d4b\u5230\u5e72\u9884\u7684\u95ed\u73af<\/h3>\n<h4 id=\"1-\u81ea\u9002\u5e94\u7f13\u5b58\u7b56\u7565\">1. <strong>\u81ea\u9002\u5e94\u7f13\u5b58\u7b56\u7565<\/strong><\/h4>\n<p>Page Cache\u7684\u7ba1\u7406\u7b56\u7565\u76f4\u63a5\u5f71\u54cd\u5b58\u50a8\u6027\u80fd\u3002\u901a\u8fc7eBPF\u6302\u8f7d<code>mark_page_accessed<\/code>\u548c<code>add_to_page_cache_lru<\/code>\u7b49\u51fd\u6570\uff0c\u53ef\u5b9e\u65f6\u7edf\u8ba1\u4e0d\u540c\u6587\u4ef6\u7684\u7f13\u5b58\u547d\u4e2d\u7387\u3002<strong>\u7ed3\u5408eBPF\u7684\u5b9e\u65f6\u53cd\u9988\uff0c\u7cfb\u7edf\u80fd\u52a8\u6001\u8c03\u6574\u5185\u5b58\u56de\u6536\u7b56\u7565<\/strong>\u2014\u2014\u4f8b\u5982\uff0c\u4e3a\u9ad8\u9891\u8bbf\u95ee\u7684\u6570\u636e\u5e93\u65e5\u5fd7\u6587\u4ef6\u5206\u914d\u66f4\u591a\u7f13\u5b58\uff0c\u800c\u5bf9\u51b7\u6570\u636e\u6267\u884c\u4e3b\u52a8\u964d\u7ea7\u3002Netflix\u5f00\u6e90\u9879\u76ee<strong>eBPF-for-Windows<\/strong>\u4e2d\uff0c\u5c31\u5229\u7528\u7c7b\u4f3c\u673a\u5236\u4f18\u5316\u4e86\u89c6\u9891\u6d41\u5a92\u4f53\u7684\u7f13\u5b58\u547d\u4e2d\u7387\u3002<\/p>\n<h4 id=\"2-i-o\u8c03\u5ea6\u5668\u5b9e\u65f6\u5207\u6362\">2. <strong>I\/O\u8c03\u5ea6\u5668\u5b9e\u65f6\u5207\u6362<\/strong><\/h4>\n<p>Linux\u5185\u6838\u63d0\u4f9b\u591a\u79cdI\/O\u8c03\u5ea6\u5668\uff08\u5982Kyber\u3001mq-deadline\uff09\uff0c\u4f46\u4f20\u7edf\u65b9\u5f0f\u9700\u91cd\u542f\u8bbe\u5907\u65b9\u80fd\u5207\u6362\u3002\u501f\u52a9eBPF\uff0c\u53ef\u901a\u8fc7\u6539\u5199<code>blk_mq_sched_tags_btags<\/code>\u7b49\u7ed3\u6784\u4f53\u5b57\u6bb5\uff0c\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u5207\u6362\u8c03\u5ea6\u7b97\u6cd5\u3002\u67d0\u516c\u6709\u4e91\u5382\u5546\u5728SSD\u5b9e\u4f8b\u4e2d\u5b9e\u9a8c\u53d1\u73b0\uff1a\u9488\u5bf9\u968f\u673a\u8bfb\u5bc6\u96c6\u578b\u8d1f\u8f7d\uff0c\u5c06\u9ed8\u8ba4\u7684Kyber\u5207\u6362\u4e3aNone\uff08Noop\uff09\u8c03\u5ea6\u5668\u540e\uff0c\u5c3e\u5ef6\u8fdf\uff08P99\uff09\u964d\u4f4e40%\u3002<\/p>\n<hr>\n<h3 id=\"\u56db-\u5b9e\u6218\u6848\u4f8b-ceph\u4e0eebpf\u7684\u5316\u5b66\u53cd\u5e94\">\u56db\u3001\u5b9e\u6218\u6848\u4f8b\uff1aCeph\u4e0eeBPF\u7684\u5316\u5b66\u53cd\u5e94<\/h3>\n<p>\u5728Ceph\u5206\u5e03\u5f0f\u5b58\u50a8\u4e2d\uff0c\u5bf9\u8c61\u5b58\u50a8\u5b88\u62a4\u8fdb\u7a0b\uff08OSD\uff09\u7684I\/O\u8def\u5f84\u6d89\u53ca\u7f51\u7edc\u3001RocksDB\u3001BlueStore\u7b49\u591a\u4e2a\u5c42\u7ea7\u3002\u67d0\u56e2\u961f\u4f7f\u7528<strong>bpftrace\u811a\u672c<\/strong>\u8ffd\u8e2a<code>BlueStore::queue_transactions<\/code>\u51fd\u6570\uff0c\u53d1\u73b0\u7ea615%\u7684\u4e8b\u52a1\u56e0RocksDB Compaction\u88ab\u5ef6\u8fdf\u5904\u7406\u3002<strong>\u901a\u8fc7eBPF\u52a8\u6001\u6ce8\u5165\u4f18\u5148\u7ea7\u6807\u8bb0\uff0c\u5c06Compaction\u76f8\u5173I\/O\u7684nice\u503c\u8c03\u4f4e\u540e\uff0c\u4e8b\u52a1\u5e73\u5747\u5904\u7406\u65f6\u95f4\u4ece8ms\u964d\u81f35.2ms<\/strong>\u3002\u8fd9\u4e00\u4f18\u5316\u65e0\u9700\u91cd\u65b0\u7f16\u8bd1Ceph\u4ee3\u7801\uff0c\u4ec5\u9700\u52a0\u8f7d\u4e00\u4e2a300\u884c\u7684eBPF\u7a0b\u5e8f\u3002<\/p>\n<hr>\n<h3 id=\"\u4e94-\u6280\u672f\u5c55\u671b-ebpf\u4e0e\u5b58\u50a8\u751f\u6001\u7684\u6df1\u5ea6\u878d\u5408\">\u4e94\u3001\u6280\u672f\u5c55\u671b\uff1aeBPF\u4e0e\u5b58\u50a8\u751f\u6001\u7684\u6df1\u5ea6\u878d\u5408<\/h3>\n<p>\u968f\u7740<strong>eBPF for Storage<\/strong>\u7b49\u5f00\u6e90\u9879\u76ee\u7684\u63a8\u8fdb\uff0c\u5b58\u50a8\u6027\u80fd\u4f18\u5316\u6b63\u8d70\u5411\u81ea\u52a8\u5316\uff1a<\/p>\n<ul>\n<li><strong>\u667a\u80fd\u9884\u53d6<\/strong>\uff1a\u57fa\u4e8eeBPF\u9884\u6d4bI\/O\u6a21\u5f0f\uff0c\u52a8\u6001\u8c03\u6574\u9884\u53d6\u7a97\u53e3\u5927\u5c0f\uff1b\n<\/li>\n<li><strong>\u6545\u969c\u6ce8\u5165<\/strong>\uff1a\u6a21\u62df\u78c1\u76d8\u6162\u901f\/\u6545\u969c\uff0c\u9a8c\u8bc1\u5b58\u50a8\u7cfb\u7edf\u7684\u9c81\u68d2\u6027\uff1b\n<\/li>\n<li><strong>\u7edf\u4e00\u9065\u6d4b<\/strong>\uff1a\u5c06eBPF\u6570\u636e\u5bfc\u5165<a href=\"https:\/\/www.yunshan.net\/\"   target=\"_blank\" style=\"color:blue\">Prometheus<\/a>\/Grafana\uff0c\u6784\u5efa\u5b58\u50a8\u6027\u80fd\u76d1\u63a7\u57fa\u7ebf\u3002\n<\/li>\n<\/ul>\n<p>\u5fae\u8f6f\u7814\u7a76\u9662\u5728SIGCOMM 2023\u7684\u8bba\u6587\u6307\u51fa\uff0c<strong>\u7ed3\u5408eBPF\u4e0e\u673a\u5668\u5b66\u4e60\u6a21\u578b\uff0c\u53ef\u5b9e\u73b0\u5bf9\u5b58\u50a8QoS\u7684\u5b9e\u65f6\u9884\u6d4b\u4e0e\u5f39\u6027\u6269\u7f29\u5bb9<\/strong>\uff0c\u8fd9\u4e00\u65b9\u5411\u6216\u5c06\u6210\u4e3a\u4e0b\u4e00\u4ee3\u5b58\u50a8\u7cfb\u7edf\u7684\u6807\u914d\u80fd\u529b\u3002<\/p>\n<hr>\n<p>\u4eceLinux\u5185\u6838\u5230\u4e91\u539f\u751f\u57fa\u7840\u8bbe\u65bd\uff0ceBPF\u6b63\u4ee5\u201c\u8d85\u80fd\u529b\u89c2\u6d4b\u8005\u201d\u7684\u89d2\u8272\u91cd\u5851\u5b58\u50a8\u7cfb\u7edf\u7684\u53ef\u89c2\u6d4b\u6027\u4e0e\u53ef\u7f16\u7a0b\u6027\u3002\u65e0\u8bba\u662f\u88f8\u91d1\u5c5e\u670d\u52a1\u5668\u8fd8\u662f\u5bb9\u5668\u5316\u73af\u5883\uff0c<strong>\u5c06eBPF\u5d4c\u5165\u5b58\u50a8\u6027\u80fd\u8c03\u4f18\u5de5\u4f5c\u6d41\uff0c\u5df2\u6210\u4e3a\u7a81\u7834\u6027\u80fd\u74f6\u9888\u7684\u65b0\u8303\u5f0f<\/strong>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4e91\u8ba1\u7b97\u4e0e\u5206\u5e03\u5f0f\u7cfb\u7edf\u9ad8\u901f\u53d1\u5c55\u7684\u4eca\u5929\uff0c\u5b58\u50a8\u7cfb\u7edf\u4f5c\u4e3a\u6570\u636e\u5904\u7406\u7684\u57fa\u77f3\uff0c\u5176\u6027\u80fd\u74f6\u9888\u76f4\u63a5\u5f71\u54cd\u7740\u6570\u636e\u5e93\u54cd\u5e94\u901f\u5ea6\u3001AI\u8bad\u7ec3\u6548\u7387\u751a\u81f3\u7528\u6237\u4f53\u9a8c\u3002\u4f20\u7edf\u4f18\u5316\u624b\u6bb5\u5f80\u5f80\u4f9d\u8d56\u9759\u6001\u65e5\u5fd7\u5206\u6790\u6216\u4fb5\u5165\u5f0f\u5185\u6838\u6a21\u5757\u5f00\u53d1\uff0c\u4e0d\u4ec5\u5b9e\u65f6\u6027\u5dee\uff0c\u8fd8\u53ef\u80fd\u56e0\u9891\u7e41\u7684\u4ee3\u7801\u4fee\u6539\u5f15\u5165\u7a33\u5b9a\u6027\u98ce\u9669\u3002\u800ceBPF\uff08Extended Berkeley Packet Filter\uff09\u6280\u672f\u7684\u5d1b\u8d77\uff0c\u4e3a\u5b58\u50a8\u6027\u80fd\u4f18\u5316\u63d0\u4f9b\u4e86\u4e00\u79cd\u9769\u547d\u6027\u7684\u52a8\u6001\u89c2\u6d4b\u4e0e\u5e72\u9884\u673a\u5236\uff0c\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u591f\u5728\u4e0d\u91cd\u542f\u670d\u52a1\u3001\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u7801\u7684\u524d\u63d0\u4e0b\uff0c\u4ee5\u4e9a\u6beb\u79d2\u7ea7\u7cbe\u5ea6\u900f\u89c6\u5b58\u50a8I\/O\u5168\u94fe\u8def\u3002 \u4e00\u3001eBPF\uff1a\u91cd\u65b0\u5b9a\u4e49\u7cfb\u7edf\u53ef\u89c2\u6d4b\u6027 eBPF\u672c\u8d28\u4e0a\u662f\u4e00\u4e2a\u8fd0\u884c\u5728Linux\u5185\u6838\u7684\u9ad8\u6548\u865a\u62df\u673a\uff0c\u5141\u8bb8\u7528\u6237\u5c06\u81ea\u5b9a\u4e49\u7a0b\u5e8f\u6ce8\u5165\u5185\u6838\u6267\u884c\u3002\u4e0e\u4f20\u7edf\u7684\u7cfb\u7edf\u8c03\u7528\u8ddf\u8e2a\u5de5\u5177\uff08\u5982strace\uff09\u76f8\u6bd4\uff0ceBPF\u5177\u5907\u4e09\u4e2a\u6838\u5fc3\u4f18\u52bf\uff1a \u5b89\u5168\u6027\uff1a\u901a\u8fc7\u4e25\u683c\u7684\u9a8c\u8bc1\u673a\u5236\u786e\u4fdd\u7a0b\u5e8f\u4e0d\u4f1a\u5bfc\u81f4\u5185\u6838\u5d29\u6e83\uff1b \u9ad8\u6548\u6027\uff1a\u7a0b\u5e8f\u7f16\u8bd1\u4e3a\u5b57\u8282\u7801\u540e\u7531JIT\u7f16\u8bd1\u5668\u8f6c\u6362\u4e3a\u673a\u5668\u7801\uff0c\u6027\u80fd\u635f\u8017\u4f4e\u4e8e1%\uff1b \u7075\u6d3b\u6027\uff1a\u652f\u6301\u52a8\u6001\u52a0\u8f7d\u548c\u5378\u8f7d\uff0c\u8986\u76d6\u4ece\u7f51\u7edc\u5230\u5b58\u50a8\u7684\u5168\u6808\u89c2\u6d4b\u573a\u666f\u3002 \u5728\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u4e9b\u7279\u6027\u4f7f\u5f97eBPF\u80fd\u591f\u5b9e\u65f6\u6355\u83b7\u5757\u8bbe\u5907I\/O\u8bf7\u6c42\u3001\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\u3001Page Cache\u884c\u4e3a\u7b49\u5173\u952e\u6307\u6807\u3002\u4f8b\u5982\uff0c\u901a\u8fc7BCC\uff08BPF Compiler 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