{"id":210081,"date":"2025-10-24T05:04:48","date_gmt":"2025-10-23T21:04:48","guid":{"rendered":"https:\/\/www.server.hk\/blog\/210081\/"},"modified":"2025-10-24T05:04:49","modified_gmt":"2025-10-23T21:04:49","slug":"quic","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/210081\/","title":{"rendered":"\u8fb9\u7f18\u667a\u80fd\u00d7QUIC\uff1a\u5f00\u542fCDN\u52a0\u901f\u7684\u4e0b\u4e00\u4ee3\u9769\u547d"},"content":{"rendered":"<p>\u968f\u7740\u4e92\u8054\u7f51\u4e1a\u52a1\u5bf9\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u53ef\u9760\u6027\u548c\u667a\u80fd\u5316\u8c03\u5ea6\u7684\u9700\u6c42\u4e0d\u65ad\u63d0\u5347\uff0c\u4f20\u7edf\u57fa\u4e8eTCP\u7684CDN\u4f20\u8f93\u67b6\u6784\u5df2\u9010\u6e10\u663e\u9732\u74f6\u9888\u3002\u8fd1\u671f\uff0c\u8fb9\u7f18\u667a\u80fd\u4e0eQUIC\u534f\u8bae\u7684\u7ed3\u5408\uff0c\u6b63\u5728\u6210\u4e3a\u9a71\u52a8CDN\u52a0\u901f\u8fdb\u5165\u4e0b\u4e00\u4ee3\u7684\u91cd\u8981\u529b\u91cf\u3002\u672c\u6587\u4ece\u539f\u7406\u3001\u5b9e\u9645\u5e94\u7528\u573a\u666f\u3001\u4f18\u52bf\u5bf9\u6bd4\u548c\u9009\u8d2d\u5efa\u8bae\u56db\u4e2a\u65b9\u9762\u5c55\u5f00\uff0c\u65e8\u5728\u4e3a\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\u63d0\u4f9b\u5177\u6709\u64cd\u4f5c\u4ef7\u503c\u7684\u6280\u672f\u53c2\u8003\u3002<\/p>\n<h2>QUIC 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QUIC \u53c2\u6570\u8c03\u4f18\u4e0e\u62e5\u585e\u63a7\u5236<\/h3>\n<ul>\n<li>\u9009\u62e9\u5408\u9002\u7684\u62e5\u585e\u63a7\u5236\uff1a\u5728\u9ad8\u4e22\u5305\u573a\u666f\u4e0b\u4f20\u7edfCubic\u6548\u7387\u4f4e\uff0c\u53ef\u90e8\u7f72BBR\u6216BBRv2\u4ee5\u51cf\u5c11\u5ef6\u8fdf\u5e76\u63d0\u9ad8\u5e26\u5bbd\u5229\u7528\u7387\u3002<\/li>\n<li>\u542f\u7528\u4e22\u5305\u6062\u590d\u4e0eFEC\uff08\u524d\u5411\u7ea0\u9519\uff09\uff1a\u5bf9\u5b9e\u65f6\u89c6\u9891\u6d41\uff0c\u901a\u8fc7FEC\u51cf\u5c11\u91cd\u4f20\u5bf9\u4f53\u9a8c\u7684\u5f71\u54cd\u3002\u8fb9\u7f18\u53ef\u52a8\u6001\u8c03\u6574FEC\u5197\u4f59\u7387\u4ee5\u5e73\u8861\u5e26\u5bbd\u4e0e\u8d28\u91cf\u3002<\/li>\n<li>0-RTT\u7684\u5b89\u5168\u4e0e\u56de\u653e\u98ce\u9669\u63a7\u5236\uff1a\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u7ef4\u62a4\u77ed\u671f\u4f1a\u8bdd\u4fe1\u606f\u5e76\u7ed3\u5408\u5e94\u7528\u5c42\u9632\u91cd\u653e\u903b\u8f91\uff0c\u786e\u4fdd0-RTT\u65e2\u5feb\u53c8\u5b89\u5168\u3002<\/li>\n<\/ul>\n<h3>2. \u8fb9\u7f18\u7f13\u5b58\u4e0e\u667a\u80fd\u9884\u70ed<\/h3>\n<ul>\n<li>\u57fa\u4e8e\u8bbf\u95ee\u6a21\u5f0f\u7684\u9884\u6d4b\u7f13\u5b58\uff1a\u8fb9\u7f18\u667a\u80fd\u4f7f\u7528\u65f6\u95f4\u5e8f\u5217\u6a21\u578b\u6216\u8f7b\u91cf\u795e\u7ecf\u7f51\u7edc\u9884\u6d4b\u70ed\u5185\u5bb9\uff0c\u63d0\u524d\u5728\u8fb9\u7f18PoP\u9884\u70ed\u5e76\u901a\u8fc7QUIC\u5feb\u901f\u5206\u53d1\u3002<\/li>\n<li>\u5206\u5c42\u7f13\u5b58\u7b56\u7565\uff1a\u672c\u5730\u5185\u5b58\u7f13\u5b58+\u672c\u5730SSD+\u4e2d\u5fc3\u5316\u5bf9\u8c61\u5b58\u50a8\uff0c\u7ed3\u5408QUIC\u77ed\u8fde\u63a5\u4e0e\u6d41\u63a7\uff0c\u4f18\u5316\u51b7\u542f\u52a8\u4e0e\u7a81\u53d1\u6d41\u91cf\u3002<\/li>\n<\/ul>\n<h3>3. \u5b9e\u65f6\u76d1\u63a7\u4e0e\u53cd\u9988\u95ed\u73af<\/h3>\n<ul>\n<li>\u5728\u8fb9\u7f18\u90e8\u7f72\u94fe\u8def\u63a2\u9488\u4e0e\u88ab\u52a8\u6d4b\u91cf\u6a21\u5757\uff0c\u91c7\u96c6RTT\u3001\u4e22\u5305\u3001\u5e26\u5bbd\u6296\u52a8\u7b49\u6307\u6807\u3002<\/li>\n<li>\u4f7f\u7528\u8f7b\u91cf\u63a8\u7406\u670d\u52a1\u51b3\u5b9a\u7b56\u7565\uff08\u5982\u5207\u6362\u62e5\u585e\u7b97\u6cd5\u3001\u8c03\u6574\u4f18\u5148\u7ea7\uff09\uff0c\u5e76\u901a\u8fc7\u63a7\u5236\u901a\u9053\u4e0b\u53d1\u81f3QUIC\u7aef\u70b9\u3002<\/li>\n<li>\u5c06\u91c7\u6837\u6570\u636e\u6c47\u603b\u5230\u4e2d\u5fc3\u5206\u6790\u5e73\u53f0\uff0c\u7528\u4e8e\u79bb\u7ebf\u8bad\u7ec3\u66f4\u7cbe\u786e\u7684\u8fb9\u7f18\u6a21\u578b\u3002<\/li>\n<\/ul>\n<h3>4. \u591a\u8def\u5f84\u4e0e\u94fe\u8def\u9009\u62e9<\/h3>\n<p>\u5bf9\u62e5\u6709\u591a\u7f51\u5361\u6216\u591a\u8def\u5f84\u63a5\u5165\u7684\u8bbe\u5907\uff0c\u53ef\u901a\u8fc7QUIC\u7684\u591a\u8def\u6216\u591a\u8fde\u63a5\u7b56\u7565\u5e76\u884c\u4f7f\u7528\u4e0d\u540c\u94fe\u8def\uff08\u4f8b\u5982\u79fb\u52a8\u6570\u636e\u4e0eWi-Fi\uff09\uff0c\u8fb9\u7f18\u667a\u80fd\u518d\u57fa\u4e8e\u5ef6\u8fdf\/\u4e22\u5305\u7387\u505a\u6d41\u91cf\u5206\u914d\uff0c\u63d0\u5347\u541e\u5410\u4e0e\u53ef\u9760\u6027\u3002<\/p>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1a\u4e0e\u4f20\u7edfTCP\/CDN\u76f8\u6bd4\u7684\u63d0\u5347<\/h2>\n<ul>\n<li><strong>\u5ef6\u8fdf\u4e0e\u8fde\u63a5\u5efa\u7acb\uff1a<\/strong>QUIC\u76840-RTT\u4e0e\u8fb9\u7f18\u9884\u70ed\u53ef\u663e\u8457\u964d\u4f4e\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\uff0c\u5bf9\u9759\u6001\u7f51\u9875\u4e0e\u52a8\u6001API\u5747\u6709\u5229\u3002<\/li>\n<li><strong>\u6297\u6296\u52a8\u80fd\u529b\uff1a<\/strong>\u8fde\u63a5\u8fc1\u79fb\u4e0e\u7075\u6d3b\u91cd\u4f20\u7b56\u7565\u4f7f\u79fb\u52a8\u573a\u666f\u66f4\u7a33\u5065\uff0c\u7528\u6237\u7aef\u4f53\u9a8c\u63d0\u5347\u660e\u663e\u3002<\/li>\n<li><strong>\u8fd0\u7ef4\u7075\u6d3b\u6027\uff1a<\/strong>\u7528\u6237\u6001\u5b9e\u73b0\u4f7f\u5f97\u90e8\u7f72\u81ea\u5b9a\u4e49\u62e5\u585e\u7b56\u7565\u4e0e\u534f\u8bae\u6269\u5c55\u66f4\u4fbf\u6377\uff0c\u914d\u5408\u8fb9\u7f18\u667a\u80fd\u53ef\u5b9e\u73b0\u6309\u9700\u7b56\u7565\u4e0b\u53d1\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>QUIC\u5185\u7f6e\u52a0\u5bc6\uff08\u7c7b\u4f3cTLS 1.3\uff09\uff0c\u8fb9\u7f18\u53ef\u505a\u6700\u5c0f\u5316\u7684\u53ef\u89c2\u6d4b\u6027\u5904\u7406\u4ee5\u5e73\u8861\u9690\u79c1\u4e0e\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2>\u9009\u8d2d\u5efa\u8bae\uff1a\u90e8\u7f72\u8fb9\u7f18\u667a\u80fd\u00d7QUIC\u65f6\u5e94\u5173\u6ce8\u7684\u5173\u952e\u70b9<\/h2>\n<p>\u4f01\u4e1a\u5728\u8003\u8651\u5c06CDN\u67b6\u6784\u5347\u7ea7\u4e3a\u8fb9\u7f18\u667a\u80fd+QUIC\u65f6\uff0c\u5e94\u4ece\u4ee5\u4e0b\u7ef4\u5ea6\u8bc4\u4f30\u670d\u52a1\u63d0\u4f9b\u5546\u4e0e\u8282\u70b9\u90e8\u7f72\u7b56\u7565\uff1a<\/p>\n<h3>1. PoP \u5206\u5e03\u4e0e\u7f51\u7edc\u5ef6\u8fdf<\/h3>\n<p>\u9009\u62e9\u8986\u76d6\u76ee\u6807\u7528\u6237\u7fa4\u7684\u8fb9\u7f18PoP\u662f\u524d\u63d0\u3002\u82e5\u76ee\u6807\u7528\u6237\u96c6\u4e2d\u5728\u4e9a\u592a\u5730\u533a\uff0c\u5e94\u4f18\u5148\u8003\u8651\u5728\u9999\u6e2f\u3001\u65e5\u672c\u3001\u97e9\u56fd\u3001\u65b0\u52a0\u5761\u7b49\u5730\u6709\u826f\u597d\u76f4\u8fde\u7684\u8282\u70b9\u3002\u5bf9\u4e8e\u7f8e\u6b27\u7528\u6237\uff0c\u9009\u62e9\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u6b27\u6d32\u8282\u70b9\u4ee5\u964d\u4f4e\u56de\u6e90\u65f6\u5ef6\u3002<\/p>\n<h3>2. \u8282\u70b9\u6027\u80fd\u4e0e\u5e26\u5bbd\u80fd\u529b<\/h3>\n<p>\u8fb9\u7f18\u8282\u70b9\u5e94\u5177\u5907\u5145\u8db3\u7684CPU\u4e0e\u7f51\u7edcIO\u80fd\u529b\u4ee5\u627f\u8f7dQUIC\u7684\u7528\u6237\u6001\u534f\u8bae\u6808\u548c\u8f7b\u91cf\u5316\u63a8\u7406\u670d\u52a1\u3002\u5bf9\u4e8e\u9ad8\u5e76\u53d1\u89c6\u9891\u573a\u666f\uff0c\u90e8\u7f72\u5728SSD\u4e0e\u5927\u5e26\u5bbd\u94fe\u8def\u4e0a\u7684\u9999\u6e2fVPS\u6216\u7f8e\u56fdVPS\u53ef\u4f5c\u4e3a\u70ed\u70b9\u5206\u53d1\u7684\u9996\u9009\u3002<\/p>\n<h3>3. \u5b9a\u5236\u5316\u4e0e\u5f00\u653e\u6027<\/h3>\n<p>\u4f18\u5148\u9009\u62e9\u652f\u6301\u81ea\u5b9a\u4e49\u62e5\u585e\u63a7\u5236\u3001\u53ef\u63d2\u62d4\u6a21\u5757\uff08\u4f8b\u5982FEC\u63d2\u4ef6\u3001\u6d41\u91cf\u91c7\u6837\u5668\uff09\u4ee5\u53ca\u5f00\u653eAPI\u7684\u65b9\u6848\uff0c\u4ee5\u4fbf\u4e0e\u73b0\u6709\u76d1\u63a7\u7cfb\u7edf\u548c\u673a\u5668\u5b66\u4e60\u6a21\u578b\u5bf9\u63a5\u3002<\/p>\n<h3>4. \u57df\u540d\u4e0e\u8bc1\u4e66\u7ba1\u7406<\/h3>\n<p>QUIC\u5bf9TLS\u8bc1\u4e66\u7ba1\u7406\u654f\u611f\uff0c\u5efa\u8bae\u5728\u8fb9\u7f18\u8282\u70b9\u4e0a\u5b9e\u73b0\u81ea\u52a8\u8bc1\u4e66\u7eed\u671f\u4e0e\u5206\u53d1\u673a\u5236\u3002\u8d2d\u4e70\u57df\u540d\u6ce8\u518c\u670d\u52a1\u65f6\uff0c\u786e\u4fddDNS\u89e3\u6790\u5177\u6709\u4f4eTTL\u5e76\u652f\u6301\u5730\u7406\u8c03\u5ea6\uff0c\u4ee5\u914d\u5408\u8fb9\u7f18\u8def\u7531\u7b56\u7565\u3002<\/p>\n<h3>5. \u517c\u5bb9\u6027\u4e0e\u56de\u9000\u7b56\u7565<\/h3>\n<p>\u5e76\u975e\u6240\u6709\u7ec8\u7aef\u6216\u4e2d\u95f4\u7f51\u7edc\u5747\u53cb\u597d\u652f\u6301QUIC\uff0c\u5e94\u4fdd\u7559TCP\/HTTP\/2\u56de\u9000\u8def\u5f84\uff0c\u5e76\u5728\u8fb9\u7f18\u667a\u80fd\u5c42\u505a\u534f\u8bae\u63e1\u624b\u68c0\u6d4b\u4e0e\u5e73\u6ed1\u5207\u6362\u3002<\/p>\n<h2>\u90e8\u7f72\u5b9e\u8df5\u5efa\u8bae\uff08\u5de5\u7a0b\u7ea7\uff09<\/h2>\n<ul>\n<li>\u5728\u8fb9\u7f18\u5bb9\u5668\u5316\u90e8\u7f72QUIC\u4ee3\u7406\uff08\u5982\u57fa\u4e8engtcp2\u3001quiche\u6216MsQuic\u5b9e\u73b0\uff09\uff0c\u914d\u5408\u8f7b\u91cf\u63a8\u7406\u670d\u52a1\uff08\u5982TensorFlow Lite\u6216ONNX 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