{"id":209056,"date":"2025-09-30T03:31:15","date_gmt":"2025-09-29T19:31:15","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209056\/"},"modified":"2025-09-30T03:31:16","modified_gmt":"2025-09-29T19:31:16","slug":"vps-170","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209056\/","title":{"rendered":"\u9999\u6e2fVPS\u8fb9\u7f18\u8ba1\u7b97\uff1a\u5b9e\u6218\u4f18\u5316\u5b9e\u73b0\u6beb\u79d2\u7ea7\u8d85\u4f4e\u5ef6\u8fdf\u4f53\u9a8c"},"content":{"rendered":"<p>\u5728\u5bf9\u5ef6\u8fdf\u6781\u5ea6\u654f\u611f\u7684\u5e94\u7528\u573a\u666f\uff08\u5982\u5b9e\u65f6\u91d1\u878d\u4ea4\u6613\u3001\u5728\u7ebf\u6e38\u620f\u3001\u5b9e\u65f6\u534f\u4f5c\u4e0e\u89c6\u9891\u901a\u8bdd\u3001\u7269\u8054\u7f51\u8fb9\u7f18\u5904\u7406\uff09\u4e2d\uff0c\u6beb\u79d2\u7ea7\u54cd\u5e94\u4e0d\u662f\u9526\u4e0a\u6dfb\u82b1\uff0c\u800c\u662f\u7cfb\u7edf\u53ef\u7528\u6027\u7684\u6838\u5fc3\u6307\u6807\u3002\u501f\u52a9\u9760\u8fd1\u7528\u6237\u7684\u9999\u6e2fVPS\u8fdb\u884c\u8fb9\u7f18\u8ba1\u7b97\u90e8\u7f72\uff0c\u7ed3\u5408\u7f51\u7edc\u5c42\u548c\u5185\u6838\u5c42\u7684\u6df1\u5ea6\u4f18\u5316\uff0c\u53ef\u4ee5\u628a\u5ef6\u8fdf\u538b\u7f29\u5230\u53ef\u63a7\u7684\u201c\u6beb\u79d2\u7ea7\u201d\u8303\u56f4\u5185\u3002\u672c\u6587\u9762\u5411\u7ad9\u957f\u3001\u4f01\u4e1a\u7528\u6237\u4e0e\u5f00\u53d1\u8005\uff0c\u8be6\u8ff0\u539f\u7406\u3001\u5b9e\u6218\u4f18\u5316\u7b56\u7565\u3001\u9002\u7528\u573a\u666f\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u5e2e\u52a9\u4f60\u5728\u751f\u4ea7\u73af\u5883\u5b9e\u73b0\u7a33\u5b9a\u7684\u8d85\u4f4e\u5ef6\u8fdf\u4f53\u9a8c\u3002<\/p>\n<h2>\u8fb9\u7f18\u8ba1\u7b97\u4e0e\u9999\u6e2fVPS\uff1a\u4e3a\u4f55\u662f\u5b9e\u73b0\u4f4e\u5ef6\u8fdf\u7684\u9996\u9009<\/h2>\n<p>\u8fb9\u7f18\u8ba1\u7b97\u7684\u6838\u5fc3\u601d\u60f3\u662f\u628a\u8ba1\u7b97\u80fd\u529b\u4e0b\u6c89\u5230\u79bb\u7ec8\u7aef\u66f4\u8fd1\u7684\u7f51\u7edc\u8fb9\u7f18\uff0c\u4ece\u800c\u51cf\u5c11\u6570\u636e\u5f80\u8fd4\uff08RTT\uff09\u548c\u4e2d\u95f4\u94fe\u8def\u4e2d\u7684\u4e0d\u786e\u5b9a\u6027\u3002\u9999\u6e2f\u4f4d\u4e8e\u4e9a\u592a\u7684\u7f51\u7edc\u67a2\u7ebd\u4f4d\u7f6e\uff0c\u63a5\u5165\u591a\u5bb6\u56fd\u9645\u8fd0\u8425\u5546\u4e0e\u4e3b\u8981\u4e92\u8054\u7f51\u4ea4\u6362\u4e2d\u5fc3\uff08IX\uff09\uff0c\u5bf9\u8fde\u63a5\u4e2d\u56fd\u5927\u9646\u3001\u53f0\u6e7e\u3001\u4e1c\u5357\u4e9a\u4e0e\u5168\u7403\u7684\u5ef6\u8fdf\u8868\u73b0\u6781\u4f73\u3002\u56e0\u6b64\uff0c\u9009\u62e9\u9999\u6e2fVPS\u90e8\u7f72\u8fb9\u7f18\u670d\u52a1\uff0c\u80fd\u5728\u7269\u7406\u5c42\u548c\u7f51\u7edc\u62d3\u6251\u4e0a\u83b7\u5f97\u5148\u5929\u4f18\u52bf\u3002<\/p>\n<h3>\u7269\u7406\u4e0e\u7f51\u7edc\u62d3\u6251\u4f18\u52bf<\/h3>\n<ul>\n<li>\u5730\u7406\u90bb\u8fd1\u7528\u6237\uff0c\u51cf\u5c11\u5149\u7ea4\u4f20\u64ad\u5ef6\u8fdf\uff08\u5149\u901f\u5728\u5149\u7ea4\u4e2d\u7ea62\/3c\uff09\u3002<\/li>\n<li>\u4e30\u5bcc\u7684\u56fd\u9645\u9aa8\u5e72\u8fde\u63a5\u4e0e\u8fd0\u8425\u5546\u76f4\u8fde\uff0c\u964d\u4f4eBGP\u8def\u5f84\u8df3\u6570\u4e0e\u4e2d\u8f6c\u94fe\u8def\u3002<\/li>\n<li>\u63a5\u5165\u4e3b\u8981IX\uff08\u5982HKIX\uff09\uff0c\u63d0\u9ad8\u56fd\u9645\u4e92\u8054\u6548\u7387\u4e0e\u5bf9\u7b49\uff08peering\uff09\u8d28\u91cf\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u73b0\u6beb\u79d2\u7ea7\u4f4e\u5ef6\u8fdf\u7684\u6280\u672f\u539f\u7406\u4e0e\u8def\u5f84\u4f18\u5316<\/h2>\n<p>\u8fbe\u5230\u6beb\u79d2\u7ea7\u76ee\u6807\u9700\u8981\u7efc\u5408\u7f51\u7edc\u5c42\u3001\u4f20\u8f93\u5c42\u3001\u7cfb\u7edf\u4e0e\u5e94\u7528\u5c42\u7684\u4f18\u5316\u3002\u4e0b\u9762\u5206\u5c42\u8bf4\u660e\u5173\u952e\u6280\u672f\u70b9\u53ca\u53ef\u843d\u5730\u7684\u914d\u7f6e\u3002<\/p>\n<h3>1. \u7269\u7406\u94fe\u8def\u4e0e\u8def\u7531\u4f18\u5316\uff08\u94fe\u8def\u5c42\u4e0e\u7f51\u7edc\u5c42\uff09<\/h3>\n<ul>\n<li><strong>\u9009\u62e9\u4f18\u8d28\u5e26\u5bbd\u4e0e\u5bf9\u7b49\u94fe\u8def\uff1a<\/strong>\u4f9b\u5e94\u5546\u5728\u9999\u6e2f\u7684\u6570\u636e\u4e2d\u5fc3\u82e5\u5177\u5907\u4e0e\u4e3b\u8981\u8fd0\u8425\u5546\/IX\u7684\u76f4\u63a5\u5bf9\u7b49\uff0c\u53ef\u4ee5\u663e\u8457\u7f29\u77ed\u8def\u5f84\u5e76\u51cf\u5c11\u4e2d\u8f6c\u6296\u52a8\u3002<\/li>\n<li><strong>BGP \u8def\u7531\u7b56\u7565\u4e0e\u793e\u533a\uff1a<\/strong>\u901a\u8fc7BGP\u793e\u533a\u6807\u7b7e\u4e0e\u6d41\u91cf\u5de5\u7a0b\uff08Local Preference\u3001MED\uff09\u63a7\u5236\u51fa\u7ad9\u8def\u5f84\uff0c\u907f\u514d\u7ed5\u884c\u3002\u5bf9\u7ecf\u5e38\u8bbf\u95ee\u7684\u76ee\u6807\u4f7f\u7528\u9759\u6001\u8def\u7531\u6216BGP\u504f\u597d\uff0c\u786e\u4fdd\u6700\u5feb\u8def\u5f84\u3002<\/li>\n<li><strong>Anycast \u4e0e\u5730\u7406DNS\uff1a<\/strong>\u4f7f\u7528Anycast\u90e8\u7f72\u8fb9\u7f18\u8282\u70b9\u4e0eGeoDNS\u53ef\u4ee5\u628a\u7528\u6237\u81ea\u52a8\u5bfc\u5411\u6700\u8fd1\u6216\u6700\u4f18\u7684\u9999\u6e2fVPS\u8282\u70b9\u3002<\/li>\n<li><strong>\u94fe\u8def\u8d28\u91cf\u76d1\u63a7\uff1a<\/strong>\u4f7f\u7528\u4e3b\u52a8\u6d4b\u91cf\uff08ping\u3001mtr\u3001iperf3\uff09\u548c\u88ab\u52a8\u76d1\u6d4b\u5224\u65ad\u4e22\u5305\/\u6296\u52a8\uff0c\u53ca\u65f6\u5207\u6362\u5230\u5907\u7528\u94fe\u8def\u6216\u4f18\u5316\u8def\u7531\u3002<\/li>\n<\/ul>\n<h3>2. \u4f20\u8f93\u5c42\u4e0e\u534f\u8bae\u4f18\u5316\uff08TCP\/UDP\/QUIC\uff09<\/h3>\n<ul>\n<li><strong>\u542f\u7528\u73b0\u4ee3\u62e5\u585e\u63a7\u5236\uff1a<\/strong>\u5982BBR\uff08Bottleneck Bandwidth and RTT\uff09\u6216\u66f4\u9002\u5408\u4f4e\u5ef6\u8fdf\u573a\u666f\u7684\u7b97\u6cd5\uff0c\u80fd\u51cf\u5c11\u6392\u961f\u5ef6\u8fdf\u548c\u63d0\u9ad8\u5e26\u5bbd\u5229\u7528\u3002<\/li>\n<li><strong>TCP\u53c2\u6570\u8c03\u4f18\uff1a<\/strong>\u8c03\u6574socket\u7f13\u51b2\u533a\uff08tcp_rmem\u3001tcp_wmem\uff09\u3001\u51cf\u5c0ftcp_low_latency\u76f8\u5173\u53c2\u6570\u3001\u542f\u7528TCP Fast Open\u6765\u51cf\u5c11\u63e1\u624b\u65f6\u95f4\u3002<\/li>\n<li><strong>\u91c7\u7528QUIC\/HTTP\/3\uff1a<\/strong>\u57fa\u4e8eUDP\u7684QUIC\u80fd\u51cf\u5c11\u63e1\u624b\u548c\u91cd\u4f20\u5ef6\u8fdf\uff0c\u4e14\u5185\u7f6e\u66f4\u5feb\u7684\u8fde\u63a5\u8fc1\u79fb\u4e0e0-RTT\u673a\u5236\u3002<\/li>\n<li><strong>TLS\u4f1a\u8bdd\u590d\u7528\/0-RTT\uff1a<\/strong>\u542f\u7528\u4f1a\u8bdd\u7968\u636e\u4e0e0-RTT\uff0c\u53ef\u4ee5\u5728\u5b89\u5168\u8fde\u63a5\u4e0a\u8fdb\u4e00\u6b65\u964d\u4f4e\u521d\u59cb\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<h3>3. \u4e3b\u673a\u4e0e\u5185\u6838\u5c42\u4f18\u5316<\/h3>\n<ul>\n<li><strong>SR-IOV \u4e0e\u7f51\u5361\u76f4\u901a\uff1a<\/strong>\u5bf9\u865a\u62df\u5316\u73af\u5883\u4f7f\u7528SR-IOV\u6216PCI\u76f4\u901a\uff08PCI passthrough\uff09\u53ef\u964d\u4f4e\u865a\u62df\u5316\u5f00\u9500\uff0c\u51cf\u5c11\u7f51\u7edc\u6808\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u7f51\u5361\u786c\u4ef6\u7279\u6027\uff1a<\/strong>\u542f\u7528RSS\uff08\u63a5\u6536\u7aef\u6563\u5217\uff09\u3001LSO\/TSO\u4e0eGRO\/GRL\uff0c\u4f46\u5728\u6781\u4f4e\u5ef6\u8fdf\u573a\u666f\u4e0b\u9700\u8bc4\u4f30\u662f\u5426\u5173\u95ed\u4ee5\u51cf\u5c11\u5904\u7406\u5ef6\u8fdf\u3002<\/li>\n<li><strong>eBPF\/DPDK\uff1a<\/strong>\u4f7f\u7528eBPF\u8fdb\u884c\u5185\u6838\u6001\u5feb\u901f\u8f6c\u53d1\u6216DPDK\u7ed5\u8fc7\u5185\u6838\u7528\u6237\u6001\u8fdb\u884c\u9ad8\u901f\u5305\u5904\u7406\uff0c\u9002\u7528\u4e8e\u81ea\u5b9a\u4e49\u62a5\u6587\u5904\u7406\u9700\u6c42\u3002<\/li>\n<li><strong>CPU\/\u4e2d\u65ad\u4eb2\u548c\u6027\uff1a<\/strong>\u628a\u7f51\u7edc\u4e2d\u65ad\u4e0e\u5904\u7406\u7ebf\u7a0b\u7ed1\u5b9a\u5230\u540c\u4e00\u6838\uff08irq affinity\uff09\uff0c\u51cf\u5c11\u4e0a\u4e0b\u6587\u5207\u6362\u3002<\/li>\n<li><strong>\u5185\u6838\u8c03\u5ea6\u4e0e\u5b9e\u65f6\u8865\u4e01\uff1a<\/strong>\u5bf9\u4e8e\u4e25\u683c\u5b9e\u65f6\u9700\u6c42\uff0c\u8003\u8651\u4f7f\u7528PREEMPT_RT\u6216\u5b9e\u65f6\u5185\u6838\u51cf\u5c11\u957f\u65f6\u95f4\u963b\u585e\u3002<\/li>\n<\/ul>\n<h3>4. \u5e94\u7528\u5c42\u4f18\u5316\u4e0e\u7f13\u5b58\u7b56\u7565<\/h3>\n<ul>\n<li><strong>\u8fb9\u7f18\u7f13\u5b58\uff08MEC\/Cache\u5207\u7247\uff09\uff1a<\/strong>\u628a\u9759\u6001\u6216\u53ef\u9884\u4f30\u7684\u52a8\u6001\u5185\u5bb9\u7f13\u5b58\u5728\u9999\u6e2fVPS\uff0c\u51cf\u5c11\u56de\u6e90\u5230\u4e2d\u5fc3\u7684RTT\u3002<\/li>\n<li><strong>\u5fae\u670d\u52a1\u4e0e\u5bb9\u5668\u5316\uff1a<\/strong>\u5728\u8fb9\u7f18\u90e8\u7f72\u8f7b\u91cf\u5316\u670d\u52a1\uff08\u5982\u5bb9\u5668\u6216\u65e0\u670d\u52a1\u5668\u51fd\u6570\uff09\uff0c\u51cf\u5c11\u51b7\u542f\u52a8\u548c\u4f9d\u8d56\u94fe\u8def\u3002<\/li>\n<li><strong>\u534f\u8bae\u590d\u7528\u4e0e\u957f\u8fde\u63a5\uff1a<\/strong>\u4f7f\u7528HTTP\/2\u957f\u8fde\u63a5\u3001WebSocket\u6216QUIC\u4fdd\u6301\u8fde\u63a5\uff0c\u907f\u514d\u9891\u7e41\u63e1\u624b\u3002<\/li>\n<li><strong>\u8bf7\u6c42\u5408\u5e76\u4e0e\u5206\u7ea7\u7f13\u5b58\uff1a<\/strong>\u5bf9\u5c0f\u8bf7\u6c42\u5408\u5e76\u6253\u5305\uff0c\u91c7\u7528\u7f13\u5b58\u5c42\u6b21\uff08L1\u8fb9\u7f18\u3001L2\u533a\u57df\u4e2d\u5fc3\uff09\u6765\u4f18\u5316\u547d\u4e2d\u7387\u3002<\/li>\n<\/ul>\n<h2>\u5b9e\u6218\u573a\u666f\u4e0e\u843d\u5730\u6848\u4f8b\u89e3\u6790<\/h2>\n<p>\u4e0b\u9762\u7ed9\u51fa\u82e5\u5e72\u5e38\u89c1\u573a\u666f\u7684\u843d\u5730\u7b56\u7565\uff0c\u5e2e\u52a9\u8bfb\u8005\u628a\u7406\u8bba\u8f6c\u4e3a\u751f\u4ea7\u5b9e\u64cd\u3002<\/p>\n<h3>\u573a\u666f\u4e00\uff1a\u5728\u7ebf\u6e38\u620f\u5339\u914d\u4e0e\u52a8\u4f5c\u540c\u6b65<\/h3>\n<ul>\n<li>\u5728\u9999\u6e2f\u90e8\u7f72\u6e38\u620f\u903b\u8f91\u4e0e\u5e27\u540c\u6b65\u670d\u52a1\u5668\uff0c\u4f7f\u7528UDP 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estimation\uff09\uff0c\u6839\u636e\u7f51\u7edc\u6761\u4ef6\u52a8\u6001\u8c03\u6574\u7f16\u7801\u5668\u53c2\u6570\u3002<\/li>\n<\/ul>\n<h3>\u573a\u666f\u4e09\uff1a\u91d1\u878d\u4ea4\u6613\u4e0e\u884c\u60c5\u5206\u53d1<\/h3>\n<ul>\n<li>\u5728\u9999\u6e2f\u8282\u70b9\u653e\u7f6e\u884c\u60c5\u5206\u53d1\u5f15\u64ce\uff0c\u4f7f\u7528\u5185\u5b58\u6570\u636e\u5e93\uff08Redis\/KeyDB\uff09\u4f5c\u4e3a\u9ad8\u6027\u80fd\u7f13\u5b58\uff0c\u4fdd\u8bc1\u6beb\u79d2\u7ea7\u8bfb\u53d6\u3002<\/li>\n<li>\u4f7f\u7528\u4e13\u7ebf\u6216MPLS\u94fe\u63a5\u91cd\u8981\u5ba2\u6237\uff0c\u5e76\u901a\u8fc7\u786c\u4ef6\u65f6\u95f4\u540c\u6b65\uff08PTP\uff09\u4fdd\u8bc1\u65f6\u95f4\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2>\u4f18\u52bf\u5bf9\u6bd4\uff1a\u9999\u6e2fVPS vs \u7f8e\u56fdVPS \/ \u9999\u6e2f\u670d\u52a1\u5668 \/ 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