{"id":36660,"date":"2026-10-18T08:00:58","date_gmt":"2026-10-18T00:00:58","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/how-to-boost-server-packet-processing-performance\/"},"modified":"2026-10-20T10:45:50","modified_gmt":"2026-10-20T02:45:50","slug":"how-to-boost-server-packet-processing-performance","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-boost-server-packet-processing-performance\/","title":{"rendered":"\u5982\u4f55\u63d0\u5347\u670d\u52a1\u5668\u7f51\u7edc\u5305\u5904\u7406\u6027\u80fd"},"content":{"rendered":"\n<p>\n      \u5728\u73b0\u4ee3<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/tokyo\/\" target=\"_blank\">\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528<\/a>\u73af\u5883\u4e2d\uff0c<a href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/dedicated-vs-shared-bandwidth-for-japan-dedicated-servers\/\" target=\"_blank\">\u539f\u59cb\u5e26\u5bbd<\/a>\u5f88\u5c11\u662f\u5168\u90e8\u7b54\u6848\u3002\u771f\u6b63\u51b3\u5b9a\u4e00\u53f0\u8282\u70b9\u5728\u9ad8\u538b\u529b\u4e0b\u662f\u5426\u4f9d\u7136\u201c\u8dd1\u5f97\u5feb\u201d\u7684\uff0c\u5f80\u5f80\u662f\u670d\u52a1\u5668\u7f51\u7edc\u5305\u5904\u7406\u6027\u80fd\uff1a\u4e5f\u5c31\u662f\u7cfb\u7edf\u63a5\u6536\u3001\u5206\u53d1\u3001\u7f13\u51b2\u3001\u8fc7\u6ee4\u5e76\u5c06\u6570\u636e\u5305\u4ea4\u4ed8\u7ed9\u5e94\u7528\u7a0b\u5e8f\u7684\u6548\u7387\u3002\u5bf9\u4e8e\u5728\u65e5\u672c\u673a\u623f\u4e2d\u8fd0\u884c API\u3001\u7f51\u5173\u3001\u6e38\u620f\u540e\u7aef\u3001\u6d41\u5a92\u4f53\u8fb9\u7f18\u8282\u70b9\u6216\u5185\u90e8\u5e73\u53f0\u7684\u5de5\u7a0b\u56e2\u961f\u6765\u8bf4\uff0c\u7f51\u7edc\u5305\u5904\u7406\u6b63\u662f\u5ef6\u8fdf\u5c16\u5cf0\u3001\u8f6f\u4e2d\u65ad\u98ce\u66b4\u3001\u961f\u5217\u5931\u8861\u4ee5\u53ca\u7f13\u5b58\u672a\u547d\u4e2d\u5f00\u59cb\u663e\u73b0\u7684\u5730\u65b9\u3002\u672c\u6587\u5c06\u805a\u7126\u4e00\u7cfb\u5217\u52a1\u5b9e\u4e14\u4f4e\u566a\u58f0\u7684\u65b9\u6cd5\uff0c\u5e2e\u52a9\u6280\u672f\u8fd0\u7ef4\u4eba\u5458\u5728\u4e0d\u8fc7\u5ea6\u628a\u673a\u5668\u53d8\u6210\u5b9e\u9a8c\u5e73\u53f0\u7684\u524d\u63d0\u4e0b\uff0c\u63d0\u9ad8\u541e\u5410\u7a33\u5b9a\u6027\u3002\n    <\/p>\n<h2><strong>\u4e3a\u4ec0\u4e48\u7f51\u7edc\u5305\u5904\u7406\u6bd4\u94fe\u8def\u901f\u7387\u66f4\u91cd\u8981<\/strong><\/h2>\n<p>\n      \u4e00\u53f0\u670d\u52a1\u5668\u5373\u4f7f\u62e5\u6709\u5f88\u5feb\u7684\u4e0a\u884c\u94fe\u8def\uff0c\u5728\u6d41\u91cf\u7a81\u53d1\u6216\u8fde\u63a5\u6570\u6500\u5347\u65f6\uff0c\u4f9d\u7136\u53ef\u80fd\u8868\u73b0\u4e0d\u4f73\u3002\u7f51\u7edc\u5305\u5904\u7406\u5de5\u4f5c\u4f1a\u5206\u6563\u5230\u786c\u4ef6\u961f\u5217\u3001\u4e2d\u65ad\u8def\u5f84\u3001\u5185\u6838\u4ee3\u7801\u3001\u5185\u5b58\u7f13\u51b2\u533a\u4ee5\u53ca\u7528\u6237\u6001\u5de5\u4f5c\u7ebf\u7a0b\u4e2d\u3002\u5982\u679c\u5176\u4e2d\u67d0\u4e00\u5c42\u51fa\u73b0\u5931\u8861\uff0c\u5916\u5728\u75c7\u72b6\u770b\u8d77\u6765\u53ef\u80fd\u53ea\u662f\u201c\u5076\u53d1\u6027\u53d8\u6162\u201d\uff0c\u5373\u4fbf\u5e73\u5747\u8d44\u6e90\u5229\u7528\u7387\u4f3c\u4e4e\u5e76\u4e0d\u9ad8\u3002\u56e0\u6b64\uff0c\u7f51\u7edc\u5305\u8c03\u4f18\u5e76\u4e0d\u662f\u8ffd\u9010\u5355\u4e00\u6307\u6807\uff0c\u800c\u662f\u8981\u8ba9\u6574\u4e2a\u6536\u53d1\u8def\u5f84\u4fdd\u6301\u5e73\u8861\u3002\n    <\/p>\n<p>\n      \u4ece\u64cd\u4f5c\u7cfb\u7edf\u89c6\u89d2\u770b\uff0c\u6269\u5c55\u80fd\u529b\u901a\u5e38\u53d6\u51b3\u4e8e\u6d41\u91cf\u80fd\u5426\u4ee5\u4e00\u79cd\u4fdd\u6301\u5c40\u90e8\u6027\u7684\u65b9\u5f0f\u5206\u6563\u5230\u591a\u4e2a CPU \u4e0a\u3002\u5185\u6838\u7f51\u7edc\u6587\u6863\u63cf\u8ff0\u4e86\u63a5\u6536\u7aef\u6269\u5c55\u3001\u63a5\u6536\u5305\u8f6c\u53d1\u3001\u63a5\u6536\u6d41\u8f6c\u53d1\u4ee5\u53ca\u53d1\u9001\u5305\u8f6c\u53d1\u7b49\u673a\u5236\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u4f5c\u4e3a\u5728\u591a\u5904\u7406\u5668\u7cfb\u7edf\u4e0a\u63d0\u5347\u5e76\u884c\u5ea6\u7684\u4e92\u8865\u5de5\u5177\u3002\n    <\/p>\n<ul>\n<li>\u5e26\u5bbd\u544a\u8bc9\u4f60\u53ef\u4ee5\u4f20\u8f93\u591a\u5c11\u6570\u636e\u3002<\/li>\n<li>\u5305\u901f\u7387\u544a\u8bc9\u4f60 CPU \u548c\u5185\u6838\u9700\u8981\u5b8c\u6210\u591a\u5c11\u5de5\u4f5c\u3002<\/li>\n<li>\u5ef6\u8fdf\u544a\u8bc9\u4f60\u8fd9\u4e9b\u5de5\u4f5c\u662f\u5426\u6309\u65f6\u5b8c\u6210\u3002<\/li>\n<li>\u6296\u52a8\u544a\u8bc9\u4f60\u5728\u8d1f\u8f7d\u53d8\u5316\u65f6\u8def\u5f84\u662f\u5426\u4f9d\u65e7\u7a33\u5b9a\u3002<\/li>\n<\/ul>\n<p>\n      \u5c0f\u5305\u573a\u666f\u5c24\u5176\u201c\u6b8b\u9177\u201d\u3002\u7531\u4e8e\u6bcf\u4e2a\u5305\u627f\u8f7d\u7684\u6709\u6548\u8d1f\u8f7d\u66f4\u5c11\uff0c\u673a\u5668\u5728\u4e2d\u65ad\u3001\u5185\u5b58\u642c\u8fd0\u3001\u961f\u5217\u7ba1\u7406\u4ee5\u53ca\u534f\u8bae\u5904\u7406\u4e0a\u7684\u6210\u672c\u5360\u6bd4\u5c31\u4f1a\u66f4\u9ad8\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u6570\u636e\u5305\u8282\u594f\u8d8a\u5feb\uff0c\u7cfb\u7edf\u4e2d\u7684\u4f4e\u6548\u70b9\u5c31\u8d8a\u5bb9\u6613\u88ab\u653e\u5927\u3002\n    <\/p>\n<h2><strong>\u5f71\u54cd\u7f51\u7edc\u5305\u5904\u7406\u6027\u80fd\u7684\u6838\u5fc3\u56e0\u7d20<\/strong><\/h2>\n<p>\n      \u5de5\u7a0b\u5e08\u7ecf\u5e38\u4e00\u4e0a\u6765\u5c31\u8c03\u6574 sysctl \u53c2\u6570\uff0c\u4f46\u90a3\u53ea\u662f\u5176\u4e2d\u4e00\u5c42\u3002\u771f\u6b63\u7a33\u5b9a\u7684\u6536\u76ca\uff0c\u6765\u81ea\u4e8e\u7406\u89e3\u5b8c\u6574\u7684\u6570\u636e\u8def\u5f84\u3002\n    <\/p>\n<ol>\n<li>\n        <strong>\u961f\u5217\u67b6\u6784\uff1a<\/strong>\u591a\u961f\u5217\u6536\u53d1\u8def\u5f84\u51b3\u5b9a\u4e86\u6d41\u91cf\u662f\u5426\u80fd\u591f\u5e76\u884c\u5904\u7406\u3002\n      <\/li>\n<li>\n        <strong>CPU \u62d3\u6251\uff1a<\/strong>\u6838\u5fc3\u6570\u91cf\u56fa\u7136\u91cd\u8981\uff0c\u4f46\u7f13\u5b58\u5c40\u90e8\u6027\u3001NUMA \u8fb9\u754c\u4ee5\u53ca\u6bcf\u6838\u4e89\u7528\u5f80\u5f80\u66f4\u5173\u952e\u3002\n      <\/li>\n<li>\n        <strong>\u4e2d\u65ad\u884c\u4e3a\uff1a<\/strong>\u4e0d\u5408\u7406\u7684\u4eb2\u548c\u6027\u8bbe\u7f6e\u4f1a\u8ba9\u91cd\u6d41\u91cf\u88ab\u56f0\u5728\u9519\u8bef\u7684\u6838\u5fc3\u4e0a\uff0c\u5e76\u62ac\u9ad8\u8f6f\u4e2d\u65ad\u65f6\u95f4\u3002\n      <\/li>\n<li>\n        <strong>\u5185\u6838\u7f13\u51b2\uff1a<\/strong>backlog \u6df1\u5ea6\u548c socket \u5185\u5b58\u9650\u5236\u4f1a\u5f71\u54cd\u7cfb\u7edf\u5728\u7a81\u53d1\u6d41\u91cf\u4e0b\u7684\u8868\u73b0\u3002\n      <\/li>\n<li>\n        <strong>\u5e94\u7528\u8bbe\u8ba1\uff1a<\/strong>\u5373\u4fbf\u5185\u6838\u8c03\u4f18\u5f97\u5f53\uff0c\u5982\u679c\u670d\u52a1\u6a21\u578b\u672c\u8eab\u5b58\u5728\u9501\u7ade\u4e89\u6216\u4e32\u884c\u74f6\u9888\uff0c\u4e5f\u4f1a\u5931\u53bb\u6548\u679c\u3002\n      <\/li>\n<\/ol>\n<p>\n      Linux \u5185\u6838\u6587\u6863\u6307\u51fa\uff0c\u73b0\u4ee3\u7f51\u7edc\u63a5\u53e3\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u6536\u53d1\u63cf\u8ff0\u7b26\u961f\u5217\uff0c\u800c RSS \u53ef\u4ee5\u57fa\u4e8e\u6d41\u54c8\u5e0c\u5c06\u6570\u636e\u5305\u5206\u53d1\u5230\u4e0d\u540c\u961f\u5217\u3002\u8be5\u6587\u6863\u8fd8\u89e3\u91ca\u4e86 RPS\u3001RFS \u548c XPS \u5982\u4f55\u5728\u9700\u8981\u65f6\u901a\u8fc7\u8f6f\u4ef6\u6269\u5c55\u6216\u8865\u5145\u8fd9\u79cd\u884c\u4e3a\u3002\n    <\/p>\n<h2><strong>\u9009\u62e9\u5177\u5907\u6b63\u786e\u6027\u80fd\u8fb9\u754c\u7684\u57fa\u7840\u8bbe\u65bd<\/strong><\/h2>\n<p>\n      \u5728\u52a8\u624b\u8c03\u6574\u534f\u8bae\u6808\u4e4b\u524d\uff0c\u5148\u786e\u8ba4\u5e95\u5c42\u670d\u52a1\u5668\u79df\u7528\u67b6\u6784\u662f\u5426\u771f\u6b63\u9002\u5408\u4f60\u7684\u6d41\u91cf\u7279\u5f81\u3002\u5728\u65e5\u672c\u90e8\u7f72\u73af\u5883\u4e2d\uff0c\u5f88\u591a\u4e1a\u52a1\u9762\u5411\u4e1c\u4e9a\u7528\u6237\uff0c\u5ef6\u8fdf\u654f\u611f\u6027\u4e0e\u8def\u7531\u8d28\u91cf\u4f1a\u5171\u540c\u653e\u5927\u7f51\u7edc\u5305\u5904\u7406\u4e2d\u7684\u4f4e\u6548\u70b9\u3002\u4e00\u53f0\u9002\u5408\u5927\u6d41\u91cf\u4f20\u8f93\u7684\u8282\u70b9\uff0c\u672a\u5fc5\u9002\u5408\u9ad8 PPS \u8d1f\u8f7d\uff1b\u800c\u4e00\u5957\u9488\u5bf9\u5927\u6d41\u8fde\u7eed\u4f20\u8f93\u4f18\u5316\u7684\u7cfb\u7edf\uff0c\u4e5f\u53ef\u80fd\u5728\u8bf7\u6c42\u5bc6\u96c6\u578b\u5fae\u670d\u52a1\u6216\u8fb9\u7f18\u8fc7\u6ee4\u573a\u666f\u4e2d\u8868\u73b0\u5403\u529b\u3002\n    <\/p>\n<p>\n      \u4f18\u79c0\u7684\u57fa\u7840\u8bbe\u65bd\u9009\u62e9\uff0c\u610f\u5473\u7740\u8ba9\u8ba1\u7b97\u7279\u6027\u548c\u6d41\u91cf\u5f62\u6001\u5339\u914d\uff1a\n    <\/p>\n<ul>\n<li>\u5f53\u8d1f\u8f7d\u4e2d\u65ad\u5bc6\u96c6\u65f6\uff0c\u5e94\u4f18\u5148\u8003\u8651\u5f3a\u5355\u6838\u6027\u80fd\u3002<\/li>\n<li>\u82e5\u7f51\u7edc\u5305\u961f\u5217\u4e0e\u5de5\u4f5c\u7ebf\u7a0b\u8de8\u8d8a\u4e0d\u540c\u5185\u5b58\u57df\uff0c\u8981\u5173\u6ce8 NUMA \u5e03\u5c40\u3002<\/li>\n<li>\u68c0\u67e5\u961f\u5217\u6570\u91cf\u4e0e\u5378\u8f7d\u7279\u6027\u662f\u5426\u7b26\u5408\u5b9e\u9645\u6d41\u91cf\u6a21\u5f0f\u3002<\/li>\n<li>\u5728\u89c4\u5212\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u65f6\uff0c\u9a8c\u8bc1\u8def\u7531\u7a33\u5b9a\u6027\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u5ba3\u4f20\u5e26\u5bbd\u3002<\/li>\n<\/ul>\n<p>\n      \u8fd9\u4e00\u70b9\u5728\u670d\u52a1\u5668\u79df\u7528\u548c\u670d\u52a1\u5668\u6258\u7ba1\u8ba8\u8bba\u4e2d\u7ecf\u5e38\u88ab\u5ffd\u89c6\uff1a\u7f51\u7edc\u8d28\u91cf\u4e0d\u4ec5\u53d6\u51b3\u4e8e\u4e0e\u7528\u6237\u4e4b\u95f4\u7684\u8ddd\u79bb\uff0c\u4e3b\u673a\u5185\u90e8\u7684\u6570\u636e\u5305\u8def\u5f84\u540c\u6837\u5173\u952e\u3002\n    <\/p>\n<h2><strong>\u501f\u52a9 RSS\u3001RPS \u548c RFS \u6269\u5c55\u63a5\u6536\u8def\u5f84<\/strong><\/h2>\n<p>\n      \u63a5\u6536\u4fa7\u901a\u5e38\u662f\u8bb8\u591a\u74f6\u9888\u6700\u5148\u66b4\u9732\u7684\u5730\u65b9\u3002\u5982\u679c\u6570\u636e\u5305\u5806\u79ef\u5728\u8fc7\u5c11\u7684\u961f\u5217\u6216\u8fc7\u5c11\u7684 CPU \u4e0a\uff0c\u5c31\u4f1a\u51fa\u73b0\u5355\u6838\u201c\u8fc7\u70ed\u201d\u800c\u5176\u4ed6\u6838\u5fc3\u7a7a\u95f2\u7684\u73b0\u8c61\u3002RSS \u5f80\u5f80\u662f\u7b2c\u4e00\u4e2a\u9700\u8981\u68c0\u67e5\u7684\u673a\u5236\uff0c\u56e0\u4e3a\u5b83\u5141\u8bb8\u786c\u4ef6\u5c06\u6d41\u91cf\u5206\u6563\u5230\u591a\u4e2a\u63a5\u6536\u961f\u5217\u3002\u5185\u6838\u6587\u6863\u5c06 RSS \u63cf\u8ff0\u4e3a\u4e00\u79cd\u628a\u4e0d\u540c\u6d41\u91cf\u8f6c\u53d1\u5230\u4e0d\u540c\u961f\u5217\u7684\u65b9\u5f0f\uff0c\u4ee5\u4fbf\u7531\u4e0d\u540c CPU \u5e76\u884c\u5904\u7406\u3002\n    <\/p>\n<p>\n      \u5f53\u786c\u4ef6\u5206\u53d1\u80fd\u529b\u6709\u9650\uff0c\u6216\u8005\u6d41\u91cf\u843d\u70b9\u5e76\u4e0d\u7406\u60f3\u65f6\uff0c\u8f6f\u4ef6\u8f6c\u53d1\u5c31\u80fd\u8d77\u5230\u5e2e\u52a9\u4f5c\u7528\uff1a\n    <\/p>\n<ul>\n<li><strong>RPS<\/strong> \u57fa\u4e8e\u54c8\u5e0c\u6269\u5c55\u63a5\u6536\u5904\u7406\u3002<\/li>\n<li><strong>RFS<\/strong> \u901a\u8fc7\u5c06\u5904\u7406\u5de5\u4f5c\u5bfc\u5411\u6b63\u5728\u8fd0\u884c\u6d88\u8d39\u7ebf\u7a0b\u7684 CPU\uff0c\u63d0\u5347\u5c40\u90e8\u6027\u3002<\/li>\n<li><strong>XPS<\/strong> \u6709\u52a9\u4e8e\u4f18\u5316\u53d1\u9001\u4fa7 CPU \u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n<p>\n      \u6839\u636e\u5185\u6838\u7f51\u7edc\u6307\u5357\uff0cRFS \u7684\u76ee\u6807\u662f\u901a\u8fc7\u8ba9\u7f51\u7edc\u5305\u5904\u7406\u4e0e\u5e94\u7528\u7ebf\u7a0b\u6240\u5728 CPU \u5bf9\u9f50\uff0c\u4ece\u800c\u63d0\u9ad8\u6570\u636e\u7f13\u5b58\u547d\u4e2d\u7387\u3002\u5f53\u5e94\u7528\u5c40\u90e8\u6027\u6bd4\u5355\u7eaf\u7684\u8f6e\u8be2\u5747\u8861\u66f4\u91cd\u8981\u65f6\uff0c\u5b83\u5c24\u5176\u6709\u4ef7\u503c\u3002\n    <\/p>\n<p>\n      \u5b9e\u8df5\u4e2d\u7684\u6838\u5fc3\u7ecf\u9a8c\u975e\u5e38\u7b80\u5355\uff1a\u4e0d\u8981\u53ea\u662f\u201c\u5f00\u542f\u201d\u8fd9\u4e9b\u6269\u5c55\u673a\u5236\uff0c\u800c\u8981\u6d4b\u91cf\u5b83\u4eec\u662f\u5426\u771f\u7684\u5e26\u6765\u4e86\u66f4\u597d\u7684\u5c40\u90e8\u6027\u3001\u66f4\u5747\u5300\u7684 softirq \u8d1f\u8f7d\u4ee5\u53ca\u66f4\u4f4e\u7684\u5c3e\u5ef6\u8fdf\u3002\n    <\/p>\n<h2><strong>\u63a7\u5236\u4e2d\u65ad\u5e76\u4fdd\u6301 CPU \u5c40\u90e8\u6027<\/strong><\/h2>\n<p>\n      \u5f88\u591a\u7f51\u7edc\u5305\u6027\u80fd\u95ee\u9898\uff0c\u672c\u8d28\u4e0a\u5176\u5b9e\u662f\u4e2d\u65ad\u653e\u7f6e\u95ee\u9898\u3002\u5982\u679c\u4e2d\u65ad\u3001softirq \u548c\u5de5\u4f5c\u7ebf\u7a0b\u5728\u540c\u4e00\u7ec4\u6838\u5fc3\u4e0a\u4e92\u76f8\u4e89\u62a2\uff0c\u541e\u5410\u91cf\u4e5f\u8bb8\u8fd8\u80fd\u770b\u8d77\u6765\u4e0d\u9519\uff0c\u4f46\u5ef6\u8fdf\u4f1a\u53d8\u5f97\u975e\u5e38\u4e0d\u53ef\u9884\u6d4b\u3002\u901a\u8fc7\u624b\u52a8\u6216\u7b56\u7565\u5316\u7684 IRQ \u4eb2\u548c\u6027\u914d\u7f6e\uff0c\u53ef\u4ee5\u8ba9\u961f\u5217\u4e2d\u65ad\u4e0e\u76ee\u6807 CPU \u5bf9\u9f50\uff0c\u4ece\u800c\u51cf\u5c11\u8fd9\u79cd\u6469\u64e6\u3002\n    <\/p>\n<p>\n      Linux \u6587\u6863\u65e9\u5df2\u901a\u8fc7\u6bcf\u4e2a IRQ \u7684 CPU \u63a9\u7801\u516c\u5f00\u4e86\u4eb2\u548c\u6027\u63a7\u5236\u65b9\u5f0f\uff0c\u800c\u8f83\u65e9\u7684\u5185\u6838\u6027\u80fd\u8d44\u6599\u4e5f\u660e\u786e\u6307\u51fa\uff0cNAPI \u4e0e\u4eb2\u548c\u6027\u63a7\u5236\u6709\u52a9\u4e8e\u5728\u9ad8\u901f\u94fe\u8def\u4e0a\u9632\u6b62\u4e2d\u65ad\u98ce\u66b4\u3002\n    <\/p>\n<ol>\n<li>\u5c3d\u53ef\u80fd\u5c06\u63a5\u6536\u961f\u5217\u6620\u5c04\u5230\u4e92\u4e0d\u91cd\u53e0\u7684 CPU \u7ec4\u3002<\/li>\n<li>\u8ba9\u5e94\u7528\u5de5\u4f5c\u7ebf\u7a0b\u5c3d\u91cf\u9760\u8fd1\u5176\u6d88\u8d39\u7684\u961f\u5217\u3002<\/li>\n<li>\u907f\u514d\u5728\u7f51\u7edc\u5305\u5bc6\u96c6\u6838\u5fc3\u4e0a\u6df7\u8dd1\u65e0\u5173\u7684\u9ad8\u566a\u58f0\u8d1f\u8f7d\u3002<\/li>\n<li>\u5728\u5185\u6838\u5347\u7ea7\u3001\u9a71\u52a8\u53d8\u66f4\u6216\u865a\u62df\u5316\u8fc1\u79fb\u540e\uff0c\u91cd\u65b0\u68c0\u67e5\u4eb2\u548c\u6027\u8bbe\u7f6e\u3002<\/li>\n<\/ol>\n<p>\n      \u8fc7\u4e8e\u6fc0\u8fdb\u7684\u4e2d\u65ad\u5408\u5e76\u867d\u7136\u53ef\u4ee5\u964d\u4f4e\u4e2d\u65ad\u9891\u7387\uff0c\u5374\u4e5f\u53ef\u80fd\u589e\u52a0\u7f51\u7edc\u5305\u5ef6\u8fdf\u3002\u6b63\u786e\u7684\u5e73\u8861\u53d6\u51b3\u4e8e\u670d\u52a1\u66f4\u770b\u91cd\u5927\u541e\u5410\u6548\u7387\uff0c\u8fd8\u662f\u66f4\u770b\u91cd\u5feb\u901f\u54cd\u5e94\u3002\u5bf9\u4e8e\u4ea4\u4e92\u5f0f\u670d\u52a1\u800c\u8a00\uff0c\u4e2d\u65ad\u66f4\u5c11\u5e76\u4e0d\u5929\u7136\u66f4\u597d\u3002\n    <\/p>\n<h2><strong>\u8c28\u614e\u8c03\u4f18\u5185\u6838\u961f\u5217\u4e0e Socket Backlog<\/strong><\/h2>\n<p>\n      \u5bf9\u7a81\u53d1\u6d41\u91cf\u7684\u627f\u53d7\u80fd\u529b\uff0c\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u51b3\u4e8e\u961f\u5217\u6df1\u5ea6\u4e0e backlog \u884c\u4e3a\u3002\u5982\u679c\u5165\u7ad9\u6570\u636e\u5305\u5230\u8fbe\u901f\u5ea6\u8d85\u8fc7\u534f\u8bae\u6808\u5411 socket \u4ea4\u4ed8\u7684\u901f\u5ea6\uff0c\u4e3b\u673a\u5c31\u9700\u8981\u8db3\u591f\u7684\u7a7a\u95f4\u6765\u5438\u6536\u77ed\u65f6\u5cf0\u503c\u3002\u8fd9\u65f6\uff0c\u8fd0\u7ef4\u4eba\u5458\u901a\u5e38\u4f1a\u5ba1\u89c6\u8bbe\u5907 backlog\u3001\u76d1\u542c\u961f\u5217\u4ee5\u53ca TCP \u5f85\u5904\u7406\u8fde\u63a5\u961f\u5217\u7b49\u76f8\u5173\u8bbe\u7f6e\u3002\n    <\/p>\n<p>\n      \u5185\u6838\u624b\u518c\u6750\u6599\u89e3\u91ca\u9053\uff0c\u5b9e\u9645\u751f\u6548\u7684\u76d1\u542c backlog \u4f1a\u53d7\u5230\u7cfb\u7edf\u7ea7 <code>somaxconn<\/code> \u4e0a\u9650\u7ea6\u675f\uff0c\u800c\u672a\u5b8c\u6210 TCP \u63e1\u624b\u7684\u961f\u5217\u5219\u7531 <code>tcp_max_syn_backlog<\/code> \u63a7\u5236\u3002\n    <\/p>\n<ul>\n<li>\u53ea\u6709\u5f53\u4e22\u5305\u786e\u5b9e\u7531\u7a81\u53d1\u5438\u6536\u80fd\u529b\u4e0d\u8db3\u5f15\u8d77\u65f6\uff0c\u624d\u5e94\u589e\u5927\u961f\u5217\u3002<\/li>\n<li>\u4e0d\u8981\u628a\u66f4\u5927\u7684\u7f13\u51b2\u533a\u8bef\u8ba4\u4e3a\u4e00\u5b9a\u4f1a\u5e26\u6765\u66f4\u597d\u7684\u7a33\u6001\u5ef6\u8fdf\u3002<\/li>\n<li>\u5728\u8c03\u4f18\u63a5\u6536\u548c\u53d1\u9001\u7a97\u53e3\u65f6\uff0c\u5173\u6ce8\u5185\u5b58\u538b\u529b\u3002<\/li>\n<li>\u6240\u6709\u8c03\u6574\u90fd\u5e94\u5728\u63a5\u8fd1\u751f\u4ea7\u73af\u5883\u7684\u6d41\u91cf\u6a21\u578b\u4e0b\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n<p>\n      \u8fc7\u91cf\u7f13\u51b2\u53ef\u80fd\u4f1a\u6682\u65f6\u63a9\u76d6\u95ee\u9898\uff0c\u4f46\u968f\u540e\u4f1a\u4ee5\u66f4\u957f\u7684\u6392\u961f\u65f6\u95f4\u3001\u66f4\u5dee\u7684\u53ef\u89c2\u6d4b\u6027\u548c\u66f4\u7cdf\u7cd5\u7684\u5c3e\u90e8\u8868\u73b0\u4f5c\u4e3a\u4ee3\u4ef7\u3002\u961f\u5217\u8c03\u4f18\u53ea\u6709\u548c\u66f4\u5408\u7406\u7684 CPU \u5206\u914d\u3001\u66f4\u5feb\u7684\u5e94\u7528\u6d88\u8d39\u901f\u5ea6\u7ed3\u5408\u8d77\u6765\uff0c\u624d\u4f1a\u771f\u6b63\u53d1\u6325\u4f5c\u7528\u3002\n    <\/p>\n<h2><strong>\u6709\u610f\u8bc6\u5730\u4f7f\u7528\u5378\u8f7d\u7279\u6027\uff0c\u800c\u4e0d\u662f\u76f2\u76ee\u4fe1\u4efb<\/strong><\/h2>\n<p>\n      \u5378\u8f7d\u7279\u6027\u53ef\u4ee5\u901a\u8fc7\u628a\u5206\u6bb5\u3001\u6821\u9a8c\u548c\u5904\u7406\u6216\u6570\u636e\u5305\u5408\u5e76\u7b49\u5de5\u4f5c\u79fb\u51fa\u6700\u70ed\u7684\u8f6f\u4ef6\u8def\u5f84\uff0c\u6765\u51cf\u5c11 CPU \u6d88\u8017\u3002\u8fd9\u5bf9\u6d41\u5f0f\u4f20\u8f93\u8d1f\u8f7d\u53ef\u80fd\u5f88\u6709\u5e2e\u52a9\uff0c\u4f46\u5e76\u975e\u6240\u6709\u5de5\u4f5c\u8d1f\u8f7d\u90fd\u4f1a\u540c\u6837\u53d7\u76ca\u3002\u5728\u4f4e\u5ef6\u8fdf\u94fe\u8def\u3001\u6293\u5305\u73af\u5883\u6216\u7279\u5b9a\u8f6c\u53d1\u6808\u4e2d\uff0c\u67d0\u4e9b\u5378\u8f7d\u7279\u6027\u53cd\u800c\u53ef\u80fd\u8ba9\u53ef\u89c2\u6d4b\u6027\u53d8\u5dee\uff0c\u6216\u8005\u4ee5\u4e0d\u7406\u60f3\u7684\u65b9\u5f0f\u8f6c\u79fb\u5ef6\u8fdf\u3002\n    <\/p>\n<p>\n      Linux \u7f51\u7edc\u6587\u6863\u5c06\u6821\u9a8c\u548c\u5378\u8f7d\u3001\u5206\u6bb5\u5378\u8f7d\u4ee5\u53ca\u901a\u7528\u63a5\u6536\u548c\u5206\u6bb5\u652f\u6301\u5217\u4e3a\u534f\u8bae\u6808\u7684\u6807\u51c6\u7ec4\u6210\u90e8\u5206\u3002\u8fd9\u4e9b\u5de5\u5177\u5f88\u5f3a\u5927\uff0c\u4f46\u66f4\u9002\u5408\u4f5c\u4e3a\u201c\u6309\u5de5\u4f5c\u8d1f\u8f7d\u9009\u62e9\u201d\u7684\u8c03\u8282\u624b\u6bb5\uff0c\u800c\u4e0d\u662f\u666e\u904d\u9ed8\u8ba4\u503c\u3002\n    <\/p>\n<p>\n      \u4e00\u6761\u5b9e\u7528\u7684\u5de5\u7a0b\u89c4\u5219\u662f\uff1a\n    <\/p>\n<ul>\n<li>\u5f53\u5378\u8f7d\u7279\u6027\u80fd\u660e\u786e\u964d\u4f4e CPU \u6210\u672c\u4e14\u4e0d\u635f\u5bb3\u5ef6\u8fdf\u76ee\u6807\u65f6\uff0c\u5c31\u542f\u7528\u5b83\u4eec\u3002<\/li>\n<li>\u5f53\u7f51\u7edc\u5305\u53ef\u89c1\u6027\u3001\u65f6\u5e8f\u7cbe\u5ea6\u6216\u7279\u5b9a\u8f6c\u53d1\u9700\u6c42\u66f4\u91cd\u8981\u65f6\uff0c\u5c31\u5173\u95ed\u6216\u9650\u5236\u5b83\u4eec\u3002<\/li>\n<li>\u4e00\u5b9a\u8981\u53cc\u5411\u57fa\u51c6\u6d4b\u8bd5\uff0c\u56e0\u4e3a\u76f4\u89c9\u5f80\u5f80\u5e76\u4e0d\u53ef\u9760\u3002<\/li>\n<\/ul>\n<h2><strong>\u4f18\u5316\u5e94\u7528\u5c42\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u5185\u6838<\/strong><\/h2>\n<p>\n      \u5982\u679c\u627f\u63a5\u7f51\u7edc\u5305\u7684\u670d\u52a1\u6a21\u578b\u672c\u8eab\u4e0d\u9002\u5408\u5e76\u884c\u6269\u5c55\uff0c\u90a3\u4e48\u7f51\u7edc\u5305\u5904\u7406\u6700\u7ec8\u8fd8\u662f\u4f1a\u201c\u5931\u8d25\u201d\u3002\u5355\u4e00 accept \u8def\u5f84\u3001\u4e0d\u5747\u5300\u7684\u5de5\u4f5c\u7ebf\u7a0b\u8c03\u5ea6\uff0c\u6216\u8005\u8fde\u63a5\u5904\u7406\u4e2d\u7684\u9ad8\u9501\u7ade\u4e89\uff0c\u90fd\u53ef\u80fd\u8ba9\u4e00\u53f0\u5df2\u7ecf\u8ba4\u771f\u8c03\u4f18\u7684\u4e3b\u673a\u770b\u8d77\u6765\u50cf\u662f\u201c\u7cfb\u7edf\u6709\u95ee\u9898\u201d\u3002\u5185\u6838\u53ef\u4ee5\u628a\u6d41\u91cf\u5206\u53d1\u5230\u591a\u4e2a CPU \u4e0a\uff0c\u4f46\u5e94\u7528\u7a0b\u5e8f\u672c\u8eab\u5fc5\u987b\u80fd\u591f\u627f\u63a5\u8fd9\u79cd\u5e76\u884c\u6027\uff0c\u5e76\u5c06\u5176\u771f\u6b63\u8f6c\u5316\u4e3a\u6709\u6548\u5de5\u4f5c\u3002\n    <\/p>\n<p>\n      \u6280\u672f\u56e2\u961f\u5e94\u91cd\u70b9\u68c0\u67e5\uff1a\n    <\/p>\n<ol>\n<li>\u76d1\u542c\u5206\u53d1\u662f\u5426\u4e0e CPU \u5e03\u5c40\u76f8\u5339\u914d\u3002<\/li>\n<li>\u5de5\u4f5c\u7ebf\u7a0b\u6570\u91cf\u662f\u5426\u53cd\u6620\u4e86\u771f\u5b9e\u7684\u961f\u5217\u4e0e\u6838\u5fc3\u62d3\u6251\u3002<\/li>\n<li>\u5185\u5b58\u5206\u914d\u6a21\u5f0f\u662f\u5426\u5236\u9020\u4e86\u9690\u85cf\u7684\u4e89\u7528\u3002<\/li>\n<li>\u5fd9\u8f6e\u8be2\u3001\u6279\u5904\u7406\u6216\u4e8b\u4ef6\u5faa\u73af\u8bbe\u8ba1\uff0c\u662f\u5e2e\u52a9\u4e86\u76ee\u6807\u8d1f\u8f7d\uff0c\u8fd8\u662f\u62d6\u7d2f\u4e86\u5b83\u3002<\/li>\n<\/ol>\n<p>\n      \u8fd9\u4e5f\u662f\u53ef\u89c2\u6d4b\u6027\u53d1\u6325\u4ef7\u503c\u7684\u5730\u65b9\u3002\u5982\u679c\u5185\u6838\u8ba1\u6570\u5668\u6709\u6240\u6539\u5584\uff0c\u800c\u8bf7\u6c42\u5ef6\u8fdf\u5e76\u672a\u540c\u6b65\u53d8\u597d\uff0c\u90a3\u4e48\u74f6\u9888\u591a\u534a\u53ea\u662f\u88ab\u4e0a\u79fb\u4e86\uff0c\u800c\u4e0d\u662f\u88ab\u6d88\u9664\u4e86\u3002\n    <\/p>\n<h2><strong>\u4f55\u65f6\u8003\u8651 XDP \u6216\u7528\u6237\u6001\u5feb\u901f\u8def\u5f84<\/strong><\/h2>\n<p>\n      \u5728\u67d0\u4e9b\u8fb9\u7f18\u573a\u666f\u4e2d\uff0c\u4f20\u7edf\u5185\u6838\u8def\u5f84\u672c\u8eab\u7684\u5f00\u9500\u5c31\u662f\u8fc7\u9ad8\u7684\u3002\u5982\u679c\u4e3b\u673a\u9700\u8981\u5c3d\u65e9\u8fc7\u6ee4\u6d41\u91cf\u3001\u4ee5\u6781\u4f4e\u6210\u672c\u4e22\u5f03\u5f02\u5e38\u6d41\u91cf\uff0c\u6216\u8005\u4ee5\u6781\u4f4e\u5f00\u9500\u5904\u7406\u6781\u9ad8\u5305\u901f\u7387\uff0c\u90a3\u4e48\u66f4\u9760\u524d\u7684\u5904\u7406\u94a9\u5b50\u6216\u7528\u6237\u6001\u7f51\u7edc\u5305\u5f15\u64ce\u5c31\u503c\u5f97\u8bc4\u4f30\u3002\n    <\/p>\n<p>\n      \u5f53\u524d Linux \u624b\u518c\u8d44\u6599\u5728\u5feb\u901f\u8fc7\u6ee4\u548c\u5165\u53e3\u5143\u6570\u636e\u5904\u7406\u7684\u8bed\u5883\u4e2d\u63d0\u5230 XDP\uff0c\u8fd9\u4e5f\u4f53\u73b0\u4e86\u5b83\u4f5c\u4e3a\u4e00\u79cd\u66f4\u4f4e\u5f00\u9500\u7684\u65e9\u671f\u7f51\u7edc\u5305\u51b3\u7b56\u8def\u5f84\u7684\u89d2\u8272\u3002\n    <\/p>\n<ul>\n<li>\u5f53\u4e3b\u8981\u76ee\u6807\u662f\u5c3d\u65e9\u5206\u7c7b\u6216\u4e22\u5f03\u6570\u636e\u5305\u65f6\uff0c\u4f7f\u7528 XDP\u3002<\/li>\n<li>\u5f53\u5de5\u4f5c\u8d1f\u8f7d\u672c\u8d28\u4e0a\u5df2\u7ecf\u63a5\u8fd1\u201c\u7f51\u7edc\u5305\u8bbe\u5907\u201d\u65f6\uff0c\u518d\u8003\u8651\u66f4\u4e13\u4e1a\u7684\u5feb\u901f\u8def\u5f84\u3002<\/li>\n<li>\u5982\u679c\u6807\u51c6\u5185\u6838\u7f51\u7edc\u5df2\u7ecf\u8db3\u4ee5\u6ee1\u8db3\u9700\u6c42\uff0c\u5c31\u4e0d\u8981\u4e3a\u4e86\u590d\u6742\u6027\u800c\u590d\u6742\u3002<\/li>\n<\/ul>\n<p>\n      \u8fd9\u91cc\u7684\u6743\u8861\u4e0d\u4ec5\u662f\u5de5\u7a0b\u65f6\u95f4\u6210\u672c\u3002\u66f4\u5feb\u7684\u8def\u5f84\u901a\u5e38\u8fd8\u610f\u5473\u7740\u9700\u8981\u66f4\u4e25\u683c\u7684\u53ef\u89c2\u6d4b\u6027\u7eaa\u5f8b\u3001\u66f4\u4e25\u8c28\u7684\u90e8\u7f72\u63a7\u5236\uff0c\u4ee5\u53ca\u66f4\u4ed4\u7ec6\u7684\u56de\u6eda\u8ba1\u5212\u3002\n    <\/p>\n<h2><strong>\u5982\u4f55\u8bc6\u522b\u771f\u6b63\u7684\u7f51\u7edc\u5305\u74f6\u9888<\/strong><\/h2>\n<p>\n      \u5728\u4fee\u6539\u4efb\u4f55\u914d\u7f6e\u4e4b\u524d\uff0c\u5148\u786e\u8ba4\u4e3b\u673a\u662f\u5426\u771f\u7684\u53d7\u9650\u4e8e\u7f51\u7edc\u5305\u5904\u7406\u3002\u6280\u672f\u4e0a\u7684\u75c7\u72b6\u901a\u5e38\u4e0d\u662f\u5b64\u7acb\u51fa\u73b0\uff0c\u800c\u662f\u6210\u7ec4\u51fa\u73b0\u3002\n    <\/p>\n<ul>\n<li>\u4e00\u4e24\u4e2a\u6838\u5fc3\u7684 softirq \u65f6\u95f4\u660e\u663e\u5347\u9ad8\uff0c\u800c\u5176\u4ed6\u6838\u5fc3\u76f8\u5bf9\u7a7a\u95f2\u3002<\/li>\n<li>\u5ef6\u8fdf\u4e3b\u8981\u5728\u7a81\u53d1\u6d41\u91cf\u671f\u95f4\u6076\u5316\uff0c\u800c\u4e0d\u662f\u59cb\u7ec8\u90fd\u5dee\u3002<\/li>\n<li>\u5728\u5e73\u5747\u5e26\u5bbd\u5e76\u4e0d\u9ad8\u7684\u60c5\u51b5\u4e0b\uff0c\u4e22\u5305\u6216\u91cd\u4f20\u5f00\u59cb\u4e0a\u5347\u3002<\/li>\n<li>\u961f\u5217\u6df1\u5ea6\u589e\u957f\u901f\u5ea6\u8d85\u8fc7\u5e94\u7528\u7a0b\u5e8f\u7684\u6d88\u8d39\u901f\u5ea6\u3002<\/li>\n<li>\u8c03\u6574\u4eb2\u548c\u6027\u5e26\u6765\u7684\u6539\u5584\uff0c\u8d85\u8fc7\u5355\u7eaf\u589e\u52a0\u539f\u59cb\u5e26\u5bbd\u7684\u6548\u679c\u3002<\/li>\n<\/ul>\n<p>\n      \u7f51\u7edc\u5305\u8bca\u65ad\u5728\u8d1f\u8f7d\u53d8\u5316\u7684\u524d\u3001\u4e2d\u3001\u540e\u591a\u4e2a\u9636\u6bb5\u91c7\u6837\u65f6\u6700\u6709\u4ef7\u503c\u3002\u8fc7\u4e8e\u5b89\u9759\u7684\u57fa\u51c6\u6d4b\u8bd5\uff0c\u5f88\u53ef\u80fd\u4f1a\u9519\u8fc7\u751f\u4ea7\u6d41\u91cf\u4e2d\u771f\u6b63\u9020\u6210\u4f24\u5bb3\u7684\u90a3\u79cd\u5931\u8861\u3002\n    <\/p>\n<h2><strong>\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u573a\u666f\u4e2d\u7684\u5e38\u89c1\u8c03\u4f18\u8bef\u533a<\/strong><\/h2>\n<p>\n      \u5728\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u4e2d\u5de5\u4f5c\u7684\u5de5\u7a0b\u5e08\uff0c\u5f80\u5f80\u7ee7\u627f\u7684\u662f\u4e00\u5957\u5ffd\u7565\u771f\u5b9e\u6d41\u91cf\u5f62\u6001\u7684\u901a\u7528\u6a21\u677f\uff0c\u56e0\u6b64\u5f88\u5bb9\u6613\u8e29\u8fdb\u4e00\u4e9b\u53ef\u9884\u89c1\u7684\u5751\uff1a\n    <\/p>\n<ol>\n<li>\u8bef\u4ee5\u4e3a\u9ad8\u5e26\u5bbd\u81ea\u7136\u7b49\u4e8e\u4f4e\u5ef6\u8fdf\u3002<\/li>\n<li>\u5728\u4e0d\u68c0\u67e5\u961f\u5217\u5206\u914d\u7684\u524d\u63d0\u4e0b\uff0c\u76f2\u76ee\u4fee\u6539 backlog \u548c\u5185\u5b58\u53c2\u6570\u3002<\/li>\n<li>\u5728\u7cfb\u7edf\u53d8\u5316\u540e\u4efb\u7531\u4e2d\u65ad\u653e\u7f6e\u7b56\u7565\u6f02\u79fb\u3002<\/li>\n<li>\u542f\u7528\u6240\u6709\u5378\u8f7d\u7279\u6027\uff0c\u5374\u4e0d\u9a8c\u8bc1\u7f51\u7edc\u5305\u884c\u4e3a\u3002<\/li>\n<li>\u5728\u9ad8\u5bc6\u5ea6\u670d\u52a1\u5668\u79df\u7528\u6216\u670d\u52a1\u5668\u6258\u7ba1\u5e03\u5c40\u4e2d\u5ffd\u7565 NUMA \u8fb9\u754c\u3002<\/li>\n<li>\u53ea\u76ef\u5e73\u5747\u503c\uff0c\u800c\u5c3e\u5ef6\u8fdf\u5374\u5728\u6301\u7eed\u6076\u5316\u3002<\/li>\n<\/ol>\n<p>\n      \u66f4\u7b26\u5408\u6781\u5ba2\u98ce\u683c\u7684\u505a\u6cd5\uff0c\u662f\u628a\u7f51\u7edc\u5305\u5904\u7406\u89c6\u4e3a\u4e00\u6761\u5b8c\u6574\u6d41\u6c34\u7ebf\u3002\u6bcf\u4e00\u6b21\u4f18\u5316\u90fd\u5e94\u8be5\u56de\u7b54\u4e00\u4e2a\u95ee\u9898\uff1a\u5b83\u662f\u771f\u7684\u4ece\u70ed\u70b9\u8def\u5f84\u4e0a\u79fb\u9664\u4e86\u5de5\u4f5c\uff0c\u8fd8\u662f\u53ea\u662f\u628a\u8fd9\u4e9b\u5de5\u4f5c\u8f6c\u79fb\u5230\u4e86\u4e00\u4e2a\u66f4\u96be\u88ab\u770b\u5230\u7684\u5730\u65b9\uff1f\n    <\/p>\n<h2><strong>\u7ed3\u8bed<\/strong><\/h2>\n<p>\n      \u66f4\u597d\u7684\u670d\u52a1\u5668\u7f51\u7edc\u5305\u5904\u7406\u6027\u80fd\uff0c\u6765\u81ea\u961f\u5217\u3001CPU\u3001\u7f13\u51b2\u533a\u4e0e\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u7eaa\u5f8b\u5316\u5bf9\u9f50\u3002\u5728\u65e5\u672c\u670d\u52a1\u5668\u79df\u7528\u573a\u666f\u4e2d\uff0c\u8def\u7531\u8d28\u91cf\u3001\u533a\u57df\u5ef6\u8fdf\u4e0e\u7a81\u53d1\u6d41\u91cf\u6a21\u5f0f\u7ecf\u5e38\u4ea4\u7ec7\u5728\u4e00\u8d77\uff0c\u56e0\u6b64\u6700\u6709\u6548\u7684\u7ed3\u679c\u901a\u5e38\u6765\u81ea\u4e00\u7cfb\u5217\u5c0f\u800c\u53ef\u9a8c\u8bc1\u7684\u8c03\u6574\uff1a\u667a\u80fd\u5206\u914d\u6d41\u91cf\u3001\u5e26\u7740\u660e\u786e\u610f\u56fe\u7ed1\u5b9a\u4e2d\u65ad\u3001\u4e3a\u7a81\u53d1\u800c\u4e0d\u662f\u201c\u9762\u5b50\u5de5\u7a0b\u201d\u8bbe\u7f6e backlog\uff0c\u5e76\u4e14\u53ea\u5728\u6807\u51c6\u8def\u5f84\u786e\u5b9e\u5230\u8fbe\u6781\u9650\u65f6\uff0c\u624d\u5347\u7ea7\u5230 XDP 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