{"id":28137,"date":"2024-09-27T15:28:58","date_gmt":"2024-09-27T07:28:58","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=14000"},"modified":"2024-09-27T15:28:58","modified_gmt":"2024-09-27T07:28:58","slug":"%e5%89%96%e6%9e%90ebpf%e5%af%b9%e5%ad%98%e5%82%a8%e7%b3%bb%e7%bb%9f%e7%9a%84%e4%bc%98%e5%8c%96%ef%bc%9a%e6%8f%90%e9%ab%98%e6%95%b0%e6%8d%ae%e8%ae%bf%e9%97%ae%e9%80%9f%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/28137.html","title":{"rendered":"\u5256\u6790eBPF\u5bf9\u5b58\u50a8\u7cfb\u7edf\u7684\u4f18\u5316\uff1a\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6"},"content":{"rendered":"

\t\t\t\t\u5256\u6790eBPF<\/a>\u5bf9\u5b58\u50a8\u7cfb\u7edf\u7684\u4f18\u5316\uff1a\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6<\/p>\n\n\n\n\n

\u5728\u5f53\u4eca\u6570\u5b57\u5316\u7684\u65f6\u4ee3\uff0c\u6570\u636e\u7684\u5b58\u50a8\u548c\u8bbf\u95ee\u901f\u5ea6\u5bf9\u4e8e\u4f01\u4e1a\u548c\u4e2a\u4eba\u7684\u4e1a\u52a1\u8fd0\u8425\u81f3\u5173\u91cd\u8981\u3002\u968f\u7740\u6570\u636e\u91cf\u7684\u4e0d\u65ad\u589e\u957f\u548c\u4e1a\u52a1\u9700\u6c42\u7684\u65e5\u76ca\u590d\u6742\uff0c\u4f20\u7edf\u7684\u5b58\u50a8\u7cfb\u7edf\u4f18\u5316\u65b9\u6cd5\u5df2\u7ecf\u96be\u4ee5\u6ee1\u8db3\u9ad8\u6548\u6570\u636e\u5904\u7406\u7684\u8981\u6c42\u3002\u800ceBPF<\/a>\uff08ExtendedBerkeleyPacketFilter\uff09\u6280\u672f\u7684\u51fa\u73b0\uff0c\u4e3a\u5b58\u50a8\u7cfb\u7edf\u7684\u4f18\u5316\u5e26\u6765\u4e86\u65b0\u7684\u601d\u8def\u548c\u7a81\u7834\uff0c\u7279\u522b\u662f\u5728\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\u65b9\u9762\u5c55\u73b0\u51fa\u4e86\u5de8\u5927\u7684\u6f5c\u529b\u3002<\/p>\n\n\n\n

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

eBPF\u662f\u4e00\u79cd\u5728\u5185\u6838\u4e2d\u8fd0\u884c\u7684\u9ad8\u6027\u80fd\u3001\u53ef\u7f16\u7a0b\u7684\u7f51\u7edc\u548c\u7cfb\u7edf\u89c2\u6d4b\u6280\u672f\u3002\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u5185\u6838\u4e2d\u52a8\u6001\u52a0\u8f7d\u548c\u6267\u884c\u81ea\u5b9a\u4e49\u7684\u4ee3\u7801\uff0c\u4ece\u800c\u5b9e\u73b0\u5bf9\u7cfb\u7edf\u884c\u4e3a\u7684\u7cbe\u7ec6\u89c2\u6d4b\u548c\u63a7\u5236\u3002\u5728\u5b58\u50a8\u7cfb\u7edf\u4e2d\uff0ceBPF\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u6570\u636e\u7684\u5b58\u50a8\u5e03\u5c40\u3001\u7f13\u5b58\u7b56\u7565\u3001I\/O\u8c03\u5ea6\u7b49\u5173\u952e\u73af\u8282\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\u3002<\/p>\n\n\n\n\n

\u9996\u5148\uff0ceBPF\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u5b58\u50a8\u7cfb\u7edf\u7684\u6570\u636e\u5e03\u5c40\u3002\u901a\u8fc7\u5bf9\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u7684\u5b9e\u65f6\u5206\u6790\uff0ceBPF\u7a0b\u5e8f\u53ef\u4ee5\u667a\u80fd\u5730\u5c06\u7ecf\u5e38\u88ab\u8bbf\u95ee\u7684\u6570\u636e\u653e\u7f6e\u5728\u5b58\u50a8\u4ecb\u8d28\u7684\u66f4\u5feb\u533a\u57df\uff0c\u5982\u56fa\u6001\u786c\u76d8\uff08SSD\uff09\u7684\u524d\u7aef\u6216\u8005\u5185\u5b58\u4e2d\u7684\u9ad8\u901f\u7f13\u5b58\u3002\u540c\u65f6\uff0c\u5bf9\u4e8e\u4e0d\u5e38\u8bbf\u95ee\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u5c06\u5176\u8fc1\u79fb\u5230\u8f83\u6162\u4f46\u5bb9\u91cf\u66f4\u5927\u7684\u5b58\u50a8\u8bbe\u5907\u4e2d\uff0c\u5982\u673a\u68b0\u786c\u76d8\uff08HDD\uff09\u3002\u8fd9\u79cd\u57fa\u4e8e\u8bbf\u95ee\u9891\u7387\u7684\u52a8\u6001\u6570\u636e\u5e03\u5c40\u8c03\u6574\uff0c\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u6570\u636e\u8bbf\u95ee\u7684\u5ef6\u8fdf\uff0c\u63d0\u9ad8\u5b58\u50a8\u7cfb\u7edf\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n\n

\u5176\u6b21\uff0ceBPF\u5728\u7f13\u5b58\u7b56\u7565\u7684\u4f18\u5316\u65b9\u9762\u4e5f\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002\u7f13\u5b58\u662f\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\u7684\u5173\u952e\u673a\u5236\u4e4b\u4e00\uff0c\u4f46\u4f20\u7edf\u7684\u7f13\u5b58\u7b56\u7565\u5f80\u5f80\u662f\u57fa\u4e8e\u56fa\u5b9a\u7684\u89c4\u5219\u548c\u53c2\u6570\uff0c\u65e0\u6cd5\u9002\u5e94\u52a8\u6001\u53d8\u5316\u7684\u5de5\u4f5c\u8d1f\u8f7d\u3002eBPF\u53ef\u4ee5\u5b9e\u65f6\u76d1\u6d4b\u6570\u636e\u7684\u8bbf\u95ee\u60c5\u51b5\uff0c\u6839\u636e\u5b9e\u9645\u7684\u8bbf\u95ee\u70ed\u5ea6\u548c\u9891\u7387\u52a8\u6001\u5730\u8c03\u6574\u7f13\u5b58\u7684\u5927\u5c0f\u548c\u5185\u5bb9\u3002\u4f8b\u5982\uff0c\u5f53\u67d0\u4e2a\u6570\u636e\u5757\u7684\u8bbf\u95ee\u9891\u7387\u7a81\u7136\u589e\u52a0\u65f6\uff0ceBPF\u53ef\u4ee5\u7acb\u5373\u5c06\u5176\u66f4\u591a\u5730\u4fdd\u7559\u5728\u7f13\u5b58\u4e2d\uff0c\u4ee5\u63d0\u9ad8\u540e\u7eed\u8bbf\u95ee\u7684\u901f\u5ea6\u3002\u53cd\u4e4b\uff0c\u5982\u679c\u67d0\u4e2a\u6570\u636e\u5757\u957f\u65f6\u95f4\u672a\u88ab\u8bbf\u95ee\uff0ceBPF\u53ef\u4ee5\u5c06\u5176\u4ece\u7f13\u5b58\u4e2d\u6e05\u9664\uff0c\u4e3a\u66f4\u6709\u4ef7\u503c\u7684\u6570\u636e\u817e\u51fa\u7a7a\u95f4\u3002<\/p>\n\n\n\n\n

\u5728I\/O\u8c03\u5ea6\u65b9\u9762\uff0ceBPF\u540c\u6837\u80fd\u591f\u5e26\u6765\u663e\u8457\u7684\u6539\u8fdb\u3002I\/O\u8c03\u5ea6\u7b97\u6cd5\u8d1f\u8d23\u51b3\u5b9a\u5b58\u50a8\u8bbe\u5907\u4e0a\u7684\u8bfb\u5199\u8bf7\u6c42\u7684\u6267\u884c\u987a\u5e8f\uff0c\u5bf9\u6570\u636e\u8bbf\u95ee\u7684\u6027\u80fd\u6709\u7740\u76f4\u63a5\u7684\u5f71\u54cd\u3002eBPF\u53ef\u4ee5\u6839\u636e\u5f53\u524d\u7cfb\u7edf\u7684\u8d1f\u8f7d\u60c5\u51b5\u548c\u6570\u636e\u7684\u7d27\u6025\u7a0b\u5ea6\uff0c\u5bf9I\/O\u8c03\u5ea6\u7b56\u7565\u8fdb\u884c\u5b9e\u65f6\u4f18\u5316\u3002\u4f8b\u5982\uff0c\u5728\u7cfb\u7edf\u8d1f\u8f7d\u8f83\u9ad8\u65f6\uff0c\u4f18\u5148\u5904\u7406\u5173\u952e\u4e1a\u52a1\u7684\u6570\u636e\u8bf7\u6c42\uff0c\u4ee5\u786e\u4fdd\u91cd\u8981\u4efb\u52a1\u7684\u53ca\u65f6\u5b8c\u6210\u3002\u540c\u65f6\uff0ceBPF\u8fd8\u53ef\u4ee5\u8bc6\u522b\u548c\u907f\u514d\u4e00\u4e9b\u53ef\u80fd\u5bfc\u81f4I\/O\u6027\u80fd\u4e0b\u964d\u7684\u4e0d\u826f\u8bbf\u95ee\u6a21\u5f0f\uff0c\u5982\u968f\u673a\u5c0fI\/O\u64cd\u4f5c\u7684\u8fc7\u5ea6\u9891\u7e41\u53d1\u751f\uff0c\u5e76\u91c7\u53d6\u76f8\u5e94\u7684\u63aa\u65bd\u8fdb\u884c\u4f18\u5316\uff0c\u5982\u5408\u5e76\u5c0fI\/O\u8bf7\u6c42\u4e3a\u5927\u7684\u8fde\u7eed\u8bf7\u6c42\uff0c\u4ee5\u63d0\u9ad8\u5b58\u50a8\u8bbe\u5907\u7684\u8bfb\u5199\u6548\u7387\u3002<\/p>\n\n\n\n\n

\u6b64\u5916\uff0ceBPF\u8fd8\u80fd\u591f\u4e0e\u5176\u4ed6\u6280\u672f\u76f8\u7ed3\u5408\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u5b58\u50a8\u7cfb\u7edf\u7684\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4e0e\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u7ed3\u5408\uff0c\u901a\u8fc7\u5bf9\u5386\u53f2\u6570\u636e\u8bbf\u95ee\u6a21\u5f0f\u7684\u5b66\u4e60\u548c\u9884\u6d4b\uff0c\u63d0\u524d\u4e3a\u5373\u5c06\u88ab\u8bbf\u95ee\u7684\u6570\u636e\u505a\u597d\u51c6\u5907\uff0c\u8fdb\u4e00\u6b65\u51cf\u5c11\u6570\u636e\u8bbf\u95ee\u7684\u5ef6\u8fdf\u3002\u4e0e\u5206\u5e03\u5f0f\u5b58\u50a8\u7cfb\u7edf\u7ed3\u5408\uff0c\u53ef\u4ee5\u5b9e\u73b0\u66f4\u667a\u80fd\u7684\u6570\u636e\u5206\u5e03\u548c\u526f\u672c\u7ba1\u7406\uff0c\u63d0\u9ad8\u6570\u636e\u7684\u53ef\u7528\u6027\u548c\u8bbf\u95ee\u901f\u5ea6\u3002<\/p>\n\n\n\n\n

\u4e91\u6749\u7f51\u7edc\u4f5c\u4e3a\u7f51\u7edc\u6d41\u91cf\u91c7\u96c6<\/a>\u5206\u53d1\u9886\u57df\u7684\u9886\u5148\u4f01\u4e1a\uff0c\u5bf9eBPF\u6280\u672f\u5728\u5b58\u50a8\u7cfb\u7edf\u4f18\u5316\u4e2d\u7684\u5e94\u7528\u6709\u7740\u6df1\u5165\u7684\u7814\u7a76\u548c\u5b9e\u8df5\u7ecf\u9a8c\u3002\u4e91\u6749\u7f51\u7edc\u7684\u89e3\u51b3\u65b9\u6848\u5145\u5206\u5229\u7528\u4e86eBPF\u7684\u5f3a\u5927\u529f\u80fd\uff0c\u4e3a\u5ba2\u6237\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u3001\u66f4\u667a\u80fd\u7684\u5b58\u50a8\u7cfb\u7edf\u4f18\u5316\u65b9\u6848\u3002<\/p>\n\n\n\n\n

\u901a\u8fc7\u4e91\u6749\u7f51\u7edc\u7684\u6280\u672f\uff0c\u4f01\u4e1a\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u7f51\u7edc\u6d41\u91cf\u7684\u7cbe\u7ec6\u5316\u91c7\u96c6\u548c\u5206\u6790\uff0c\u4ece\u800c\u66f4\u597d\u5730\u4e86\u89e3\u6570\u636e\u8bbf\u95ee\u7684\u884c\u4e3a\u548c\u6a21\u5f0f\u3002\u57fa\u4e8e\u8fd9\u4e9b\u6d1e\u5bdf\uff0c\u7ed3\u5408eBPF\u7684\u4f18\u5316\u80fd\u529b\uff0c\u53ef\u4ee5\u5bf9\u5b58\u50a8\u7cfb\u7edf\u8fdb\u884c\u9488\u5bf9\u6027\u7684\u8c03\u6574\u548c\u4f18\u5316\u3002\u4f8b\u5982\uff0c\u6839\u636e\u4e0d\u540c\u5e94\u7528\u7684\u6d41\u91cf\u7279\u5f81\u548c\u6027\u80fd\u9700\u6c42\uff0c\u52a8\u6001\u5730\u5206\u914d\u5b58\u50a8\u8d44\u6e90\u548c\u4f18\u5316\u5b58\u50a8\u7b56\u7565\uff0c\u786e\u4fdd\u5173\u952e\u4e1a\u52a1\u80fd\u591f\u83b7\u5f97\u8db3\u591f\u7684\u6027\u80fd\u4fdd\u969c\u3002<\/p>\n\n\n\n\n

\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4e91\u6749\u7f51\u7edc\u7684\u65b9\u6848\u5df2\u7ecf\u5e2e\u52a9\u4f17\u591a\u4f01\u4e1a\u663e\u8457\u63d0\u9ad8\u4e86\u5b58\u50a8\u7cfb\u7edf\u7684\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\uff0c\u964d\u4f4e\u4e86\u4e1a\u52a1\u7684\u54cd\u5e94\u65f6\u95f4\uff0c\u63d0\u5347\u4e86\u7528\u6237\u4f53\u9a8c\u3002\u540c\u65f6\uff0c\u901a\u8fc7\u4f18\u5316\u5b58\u50a8\u8d44\u6e90\u7684\u5229\u7528\uff0c\u8fd8\u5e2e\u52a9\u4f01\u4e1a\u964d\u4f4e\u4e86\u5b58\u50a8\u6210\u672c\uff0c\u63d0\u9ad8\u4e86IT\u57fa\u7840\u8bbe\u65bd\u7684\u6295\u8d44\u56de\u62a5\u7387\u3002<\/p>\n\n\n\n\n

\u7136\u800c\uff0c\u5c3d\u7ba1eBPF\u5728\u5b58\u50a8\u7cfb\u7edf\u4f18\u5316\u65b9\u9762\u5177\u6709\u5de8\u5927\u7684\u6f5c\u529b\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4e5f\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002\u4f8b\u5982\uff0ceBPF\u7a0b\u5e8f\u7684\u5f00\u53d1\u9700\u8981\u5bf9\u5185\u6838\u673a\u5236\u548c\u7cfb\u7edf\u67b6\u6784\u6709\u6df1\u5165\u7684\u7406\u89e3\uff0c\u5f00\u53d1\u96be\u5ea6\u8f83\u5927\u3002\u540c\u65f6\uff0c\u7531\u4e8eeBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u8fd0\u884c\uff0c\u5176\u5b89\u5168\u6027\u548c\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\uff0c\u9700\u8981\u8fdb\u884c\u4e25\u683c\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u3002<\/p>\n\n\n\n\n

\u603b\u4e4b\uff0ceBPF\u4e3a\u5b58\u50a8\u7cfb\u7edf\u7684\u4f18\u5316\u63d0\u4f9b\u4e86\u4e00\u79cd\u521b\u65b0\u4e14\u5f3a\u5927\u7684\u624b\u6bb5\uff0c\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u6570\u636e\u8bbf\u95ee\u901f\u5ea6\uff0c\u4e3a\u4f01\u4e1a\u7684\u4e1a\u52a1\u53d1\u5c55\u63d0\u4f9b\u6709\u529b\u7684\u652f\u6301\u3002\u4e91\u6749\u7f51\u7edc\u7b49\u4f01\u4e1a\u5728\u8fd9\u4e00\u9886\u57df\u7684\u63a2\u7d22\u548c\u5b9e\u8df5\uff0c\u4e3aeBPF\u6280\u672f\u7684\u5e7f\u6cdb\u5e94\u7528\u79ef\u7d2f\u4e86\u5b9d\u8d35\u7684\u7ecf\u9a8c\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\u548c\u5b8c\u5584\uff0c\u76f8\u4fe1eBPF\u5728\u5b58\u50a8\u7cfb\u7edf\u4f18\u5316\u4e2d\u7684\u4f5c\u7528\u5c06\u8d8a\u6765\u8d8a\u91cd\u8981\uff0c\u4e3a\u6784\u5efa\u66f4\u9ad8\u6548\u3001\u66f4\u667a\u80fd\u7684\u5b58\u50a8\u7cfb\u7edf\u5960\u5b9a\u575a\u5b9e\u7684\u57fa\u7840\u3002<\/p>\n\n]]>\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

\t\t\t\t\t\t<\/p>\n","protected":false},"author":5,"featured_media":14001,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-28137","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\/28137","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=28137"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/28137\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/14001"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=28137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=28137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=28137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}