{"id":208686,"date":"2025-09-29T20:33:12","date_gmt":"2025-09-29T12:33:12","guid":{"rendered":"https:\/\/www.server.hk\/blog\/208686\/"},"modified":"2025-09-29T20:33:13","modified_gmt":"2025-09-29T12:33:13","slug":"vps-tcp","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208686\/","title":{"rendered":"\u9999\u6e2fVPS TCP\u8c03\u4f18\u5b9e\u6218\uff1a\u663e\u8457\u63d0\u901f\u3001\u964d\u4f4e\u5ef6\u8fdf"},"content":{"rendered":"<p>\u5728\u5168\u7403\u5316\u4e1a\u52a1\u548c\u4f4e\u5ef6\u8fdf\u8bbf\u95ee\u9700\u6c42\u65e5\u76ca\u589e\u52a0\u7684\u4eca\u5929\uff0c\u5f88\u591a\u7ad9\u957f\u548c\u4f01\u4e1a\u7528\u6237\u9009\u62e9\u90e8\u7f72\u9999\u6e2fVPS\u6765\u627f\u8f7d\u9762\u5411\u4e9a\u592a\u7528\u6237\u7684\u670d\u52a1\u3002\u76f8\u6bd4\u4f4d\u4e8e\u7f8e\u4e1c\u6216\u7f8e\u897f\u7684\u7f8e\u56fdVPS\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u5728\u5230\u4e2d\u56fd\u5927\u9646\u3001\u4e1c\u5357\u4e9a\u7b49\u5730\u7684\u7f51\u7edc\u65f6\u5ef6\u5f80\u5f80\u66f4\u5c0f\u3002\u4f46\u65e0\u8bba\u7269\u7406\u4f4d\u7f6e\u5982\u4f55\uff0c\u8981\u8ba9\u9999\u6e2fVPS\u5728\u771f\u5b9e\u4e1a\u52a1\u4e2d\u8868\u73b0\u7a33\u5b9a\u4e14\u5ef6\u8fdf\u53ef\u63a7\uff0c\u5fc5\u987b\u8fdb\u884c\u7cfb\u7edf\u6027\u7684 <strong>TCP \u8c03\u4f18<\/strong>\u3002\u672c\u6587\u56f4\u7ed5\u539f\u7406\u3001\u5b9e\u6218\u914d\u7f6e\u4e0e\u9009\u8d2d\u5efa\u8bae\uff0c\u7ed3\u5408\u5e38\u89c1\u573a\u666f\u7ed9\u51fa\u53ef\u843d\u5730\u7684\u8c03\u4f18\u65b9\u6848\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u548c\u8fd0\u7ef4\u4eba\u5458\u663e\u8457\u63d0\u901f\u5e76\u964d\u4f4e\u5ef6\u8fdf\u3002<\/p>\n<h2>TCP \u6027\u80fd\u74f6\u9888\u4e0e\u8c03\u4f18\u539f\u7406<\/h2>\n<p>\u8981\u7406\u89e3\u8c03\u4f18\u4e3a\u4f55\u80fd\u594f\u6548\uff0c\u5148\u4ece TCP \u6027\u80fd\u74f6\u9888\u8bf4\u8d77\u3002\u5e38\u89c1\u5f71\u54cd\u56e0\u7d20\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u7f51\u7edc\u5e26\u5bbd\u4e0e\u5f80\u8fd4\u65f6\u5ef6\uff08RTT\uff09\uff1a\u51b3\u5b9a\u541e\u5410\u4e0a\u9650\uff08\u5e26\u5bbd\u5ef6\u8fdf\u79ef BDP\uff09\u3002<\/li>\n<li>TCP \u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff1a\u5982 CUBIC\u3001BBR \u7b49\uff0c\u76f4\u63a5\u5f71\u54cd\u901f\u5ea6\u4e0e\u7a33\u5b9a\u6027\u3002<\/li>\n<li>Socket \u7f13\u51b2\u533a\u5927\u5c0f\u4e0e\u7a97\u53e3\u7f29\u653e\uff1a\u9650\u5236\u5355\u8fde\u63a5\u541e\u5410\u3002<\/li>\n<li>\u961f\u5217\u7ba1\u7406\u4e0e\u7f13\u51b2\u81a8\u80c0\uff08bufferbloat\uff09\uff1a\u5bfc\u81f4\u9ad8\u5ef6\u8fdf\u548c\u6296\u52a8\u3002<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e0e\u7f51\u5361\u9a71\u52a8\u53c2\u6570\uff1a\u5982\u4e2d\u65ad\u3001\u5378\u8f7d\u529f\u80fd\u3001NIC \u961f\u5217\u7b49\u3002<\/li>\n<\/ul>\n<p>\u57fa\u4e8e\u4ee5\u4e0a\u70b9\uff0c\u8c03\u4f18\u76ee\u6807\u53ef\u6982\u62ec\u4e3a\uff1a\u6700\u5927\u5316\u6709\u6548\u5e26\u5bbd\u5229\u7528\u3001\u7f29\u77ed\u6392\u961f\u5ef6\u8fdf\u3001\u5feb\u901f\u5e94\u5bf9\u4e22\u5305\u4e0e\u62e5\u585e\u3001\u5e76\u4fdd\u8bc1\u8fde\u63a5\u5e76\u53d1\u65f6\u8d44\u6e90\u5206\u914d\u5408\u7406\u3002<\/p>\n<h3>\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff08CC\uff09\u9009\u62e9<\/h3>\n<p>\u9ed8\u8ba4 Linux \u5185\u6838\u901a\u5e38\u4f7f\u7528 CUBIC\uff0c\u9002\u5408\u9ad8\u5e26\u5bbd\u957f\u65f6\u5ef6\u94fe\u8def\u3002\u4f46\u5728\u4e2d\u77ed RTT\u3001\u7a81\u53d1\u6d41\u91cf\u573a\u666f\uff08\u5982\u9999\u6e2f\u5230\u5927\u9646\uff09\u4e0b\uff0c<strong>BBR\uff08Bottleneck Bandwidth and RTT\uff09<\/strong>\u53ef\u4ee5\u5e26\u6765\u66f4\u7a33\u5065\u7684\u541e\u5410\u4e0e\u66f4\u4f4e\u5ef6\u8fdf\u3002\u90e8\u7f72 BBR \u7684\u5173\u952e\u6b65\u9aa4\uff1a<\/p>\n<ul>\n<li>\u786e\u4fdd\u5185\u6838\u7248\u672c &gt;= 4.9\uff08\u5efa\u8bae 4.14 \u4ee5\u4e0a\u4ee5\u83b7\u5f97\u66f4\u597d\u7a33\u5b9a\u6027\uff09\u3002<\/li>\n<li>\u542f\u7528 BBR\uff1asysctl -w net.ipv4.tcp_congestion_control=bbr\uff0c\u5e76\u5c06 tcp_available_congestion_control \u5305\u542b bbr\u3002<\/li>\n<li>\u9a8c\u8bc1\uff1acat \/proc\/net\/tcp_available_congestion_control \u4e0e ss -t -i \u67e5\u770b\u8fde\u63a5\u4f7f\u7528\u7684 CC\u3002<\/li>\n<\/ul>\n<p>\u6ce8\u610f\uff1aBBR \u5728\u53d1\u751f\u663e\u8457\u4e22\u5305\u6216\u94fe\u8def\u4e0d\u7a33\u5b9a\u65f6\u56de\u9000\u8868\u73b0\u5404\u5f02\uff0c\u5efa\u8bae\u5148\u5728\u6d4b\u8bd5\u6d41\u91cf\u4e0b\u8bc4\u4f30\u3002<\/p>\n<h3>Socket \u7f13\u51b2\u533a\u4e0e\u7a97\u53e3\u7f29\u653e<\/h3>\n<p>\u9488\u5bf9\u9ad8\u5e76\u53d1\u548c\u5927\u5e26\u5bbd\u94fe\u8def\uff0c\u9ed8\u8ba4\u7684 rmem\/wmem \u8f83\u5c0f\u4f1a\u9650\u5236\u541e\u5410\u3002\u5e38\u89c1\u7684 sysctl \u8bbe\u7f6e\uff1a<\/p>\n<ul>\n<li>net.core.rmem_max\u3001net.core.wmem_max\uff1a\u8bbe\u7f6e\u4e3a 16777216\uff0816MB\uff09\u6216\u66f4\u5927\u3002<\/li>\n<li>net.ipv4.tcp_rmem\u3001net.ipv4.tcp_wmem\uff1a\u4f8b\u5982 &#8220;4096 87380 16777216&#8243;\uff08\u5206\u522b\u4e3a\u6700\u5c0f\u3001\u9ed8\u8ba4\u3001\u6700\u5927\uff09\u3002<\/li>\n<li>\u542f\u7528\u7a97\u53e3\u7f29\u653e\uff1anet.ipv4.tcp_window_scaling=1\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e9b\u8bbe\u7f6e\u786e\u4fdd\u5355\u8fde\u63a5\u80fd\u6839\u636e BDP \u52a8\u6001\u6269\u5927\u7a97\u53e3\uff0c\u4ece\u800c\u5145\u5206\u5229\u7528\u5e26\u5bbd\u3002<\/p>\n<h3>\u961f\u5217\u7ba1\u7406\uff08Qdisc\uff09\u4e0e\u7f13\u51b2\u81a8\u80c0<\/h3>\n<p>\u4f20\u7edf\u7684 pfifo \u9ed8\u8ba4\u961f\u5217\u5bb9\u6613\u9020\u6210 bufferbloat\uff0c\u589e\u52a0\u5ef6\u8fdf\u3002\u63a8\u8350\u4f7f\u7528\u5148\u8fdb\u961f\u5217\u7ba1\u7406\uff1a<\/p>\n<ul>\n<li>\u66f4\u6362 qdisc\uff1atc qdisc replace dev eth0 root fq_codel \u6216 fq\uff0c\u4ee5\u51cf\u5c11\u6392\u961f\u5ef6\u8fdf\u3002<\/li>\n<li>\u5bf9\u4e8e\u9ad8\u5e26\u5bbd\u94fe\u8def\uff0c\u53ef\u5c06 txqueuelen \u9002\u5ea6\u8bbe\u7f6e\uff08\u4f8b\u5982 1000-10000\uff09\uff0c\u4f46\u7ed3\u5408 fq_codel \u4f7f\u7528\u4ee5\u907f\u514d\u81a8\u80c0\u3002<\/li>\n<\/ul>\n<p>\u5728\u9999\u6e2fVPS\u4e0a\uff0cfq_codel \u5bf9\u4e8e HTTP\/HTTPS\u3001WebSocket \u7b49\u5ef6\u8fdf\u654f\u611f\u4e1a\u52a1\u80fd\u663e\u8457\u6539\u5584\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h2>\u7f51\u5361\u4e0e\u5185\u6838\u7ea7\u4f18\u5316\uff1a\u7ec6\u8282\u5b9e\u6218<\/h2>\n<h3>\u4e2d\u65ad\u4e0e CPU \u4eb2\u548c<\/h3>\n<p>\u9ad8 PPS\uff08\u6bcf\u79d2\u5305\u6570\uff09\u573a\u666f\u4e0b\uff0c\u4e2d\u65ad\u5206\u5e03\u4f1a\u5f71\u54cd\u5ef6\u8fdf\u4e0e\u541e\u5410\u3002\u5b9e\u6218\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u5b89\u88c5 irqbalance \u670d\u52a1\u6216\u624b\u52a8\u7ed1\u5b9a\u4e2d\u65ad\u5230\u591a\u6838\uff08\u4f7f\u7528 irqbalance \u6216 \/proc\/irq\/*\/smp_affinity\uff09\u3002<\/li>\n<li>\u5f00\u542f RSS\uff08\u63a5\u6536\u7aef\u6563\u5217\uff09\u4ee5\u5229\u7528\u591a\u961f\u5217\u7f51\u5361\uff0c\u51cf\u5c11\u5355\u6838\u74f6\u9888\u3002<\/li>\n<\/ul>\n<h3>\u7f51\u5361\u5378\u8f7d\u529f\u80fd<\/h3>\n<p>\u5927\u591a\u6570\u73b0\u4ee3 NIC \u652f\u6301 TCP Segmentation Offload\uff08TSO\uff09\u3001Generic Segmentation Offload\uff08GSO\uff09\u3001Receive Side Scaling\uff08RSS\uff09\u548c GRO\u3002\u542f\u7528\u6709\u5229\u4e8e CPU \u5378\u8f7d\uff0c\u4f46\u5728\u67d0\u4e9b\u865a\u62df\u5316\u73af\u5883\u53ef\u80fd\u5f15\u8d77\u5ef6\u8fdf\u548c\u5305\u91cd\u7ec4\u95ee\u9898\uff0c\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 ethtool \u68c0\u67e5\u5e76\u8c03\u6574 offload \u8bbe\u7f6e\uff08ethtool -k eth0\uff09\u3002<\/li>\n<li>\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u573a\u666f\u53ef\u5c1d\u8bd5\u5173\u95ed TSO\/GRO \u6765\u51cf\u5c11\u6296\u52a8\u3002<\/li>\n<\/ul>\n<h3>MTU \u4e0e MSS \u8c03\u6574<\/h3>\n<p>\u8de8\u56fd\u94fe\u8def\u53ef\u80fd\u7ecf\u8fc7\u4e0d\u540c\u7684 MTU\uff0c\u5bfc\u81f4\u5206\u7247\u6216 PMTU \u95ee\u9898\u3002\u5b9e\u8df5\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u901a\u8fc7 ping -M do \u6d4b\u8bd5\u8def\u5f84 MTU\uff0c\u5e76\u5728\u5fc5\u8981\u65f6\u4f7f\u7528 MSS clamping\uff08iptables -t mangle -A FORWARD -p tcp &#8211;tcp-flags SYN,RST SYN -j TCPMSS &#8211;clamp-mss-to-pmtu\uff09\u3002<\/li>\n<li>\u5bf9\u4e8e\u96a7\u9053\u6216\u52a0\u5bc6 VPN\uff08\u5982 WireGuard\u3001IPSec\uff09\u90e8\u7f72\u65f6\uff0c\u9002\u5f53\u964d\u4f4e MTU\uff08\u4f8b\u5982 1400\uff09\u4ee5\u907f\u514d\u5206\u7247\u3002<\/li>\n<\/ul>\n<h2>\u9488\u5bf9\u4e1a\u52a1\u573a\u666f\u7684\u5e94\u7528\u7b56\u7565<\/h2>\n<h3>Web \u670d\u52a1\u4e0e API\uff08\u4f4e\u5ef6\u8fdf\u4f18\u5148\uff09<\/h3>\n<p>\u5bf9\u7f51\u9875\u52a0\u8f7d\u4e0e API \u54cd\u5e94\u65f6\u95f4\u654f\u611f\u7684\u670d\u52a1\uff0c\u5e94\u4f18\u5148\uff1a<\/p>\n<ul>\n<li>\u542f\u7528 fq_codel\u3001\u51cf\u5c0f\u7f13\u51b2\u6c60\u3001\u5173\u95ed\u5927\u5e27\u5378\u8f7d\u4ee5\u964d\u4f4e\u6296\u52a8\u3002<\/li>\n<li>\u4f7f\u7528 HTTP\/2 \u6216 HTTP\/3\uff08QUIC\uff09\uff0c\u7ed3\u5408 BBR \u80fd\u5728\u9ad8\u4e22\u5305\u573a\u666f\u4e0b\u66f4\u597d\u4fdd\u6301\u541e\u5410\u3002<\/li>\n<li>\u90e8\u7f72 CDN \u5230\u9999\u6e2f\/\u4e2d\u56fd\u5927\u9646\u8282\u70b9\u4ee5\u6700\u5c0f\u5316 RTT\uff0c\u9999\u6e2fVPS \u4f5c\u4e3a\u6e90\u7ad9\u53ef\u4ee5\u964d\u4f4e\u56de\u6e90\u5ef6\u8fdf\u3002<\/li>\n<\/ul>\n<h3>\u5927\u6587\u4ef6\u4f20\u8f93\u4e0e\u5907\u4efd\uff08\u541e\u5410\u4f18\u5148\uff09<\/h3>\n<p>\u4e3a\u6700\u5927\u5316\u5e26\u5bbd\uff1a<\/p>\n<ul>\n<li>\u589e\u5927 rmem\/wmem \u548c tcp_*_memory\uff0c\u4f7f\u7528 BBR \u6216 CUBIC \u89c6\u94fe\u8def\u800c\u5b9a\u3002<\/li>\n<li>\u5728\u4f20\u8f93\u811a\u672c\u4e2d\u4f7f\u7528\u5e76\u53d1\u5206\u7247\u3001\u65ad\u70b9\u7eed\u4f20\u4ee5\u89c4\u907f\u5355\u8fde\u63a5\u9650\u5236\u3002<\/li>\n<\/ul>\n<h3>\u9ad8\u5e76\u53d1\u957f\u8fde\u63a5\uff08\u6e38\u620f\u3001\u5b9e\u65f6\u901a\u4fe1\uff09<\/h3>\n<p>\u957f\u8fde\u63a5\u573a\u666f\u6ce8\u91cd\u7a33\u5b9a\u4e0e\u4f4e\u6296\u52a8\uff1a<\/p>\n<ul>\n<li>\u4f18\u5148 BBR\uff0c\u5408\u7406\u8c03\u5c0f net.ipv4.tcp_retries2 \u4e0e tcp_fin_timeout \u4ee5\u5feb\u901f\u91ca\u653e\u5f02\u5e38\u8fde\u63a5\u3002<\/li>\n<li>\u76d1\u63a7 conntrack \u8868\uff08net.netfilter.nf_conntrack_max\uff09\u4e0e epoll\/slab \u4f7f\u7528\uff0c\u907f\u514d\u8d44\u6e90\u8017\u5c3d\u3002<\/li>\n<\/ul>\n<h2>\u9999\u6e2fVPS \u4e0e \u7f8e\u56fd\u670d\u52a1\u5668\u5bf9\u6bd4\u4e0e\u9009\u8d2d\u5efa\u8bae<\/h2>\n<p>\u5728\u505a\u9009\u8d2d\u51b3\u7b56\u65f6\uff0c\u5e94\u7ed3\u5408\u7528\u6237\u5730\u7406\u5206\u5e03\u3001\u5408\u89c4\u4e0e\u6210\u672c\u4e09\u65b9\u9762\u8003\u91cf\uff1a<\/p>\n<ul>\n<li>\u5ef6\u8fdf\uff1a\u9762\u5411\u4e2d\u56fd\u5927\u9646\u4e0e\u4e1c\u5357\u4e9a\u7528\u6237\u65f6\uff0c\u9999\u6e2fVPS \u901a\u5e38\u6bd4\u7f8e\u56fd\u670d\u52a1\u5668\uff08\u542b\u7f8e\u56fdVPS\uff09\u5728 RTT \u4e0a\u6709\u660e\u663e\u4f18\u52bf\uff0c\u80fd\u964d\u4f4e\u9996\u5b57\u8282\u65f6\u95f4\uff08TTFB\uff09\u3002<\/li>\n<li>\u5e26\u5bbd\u8ba1\u8d39\u4e0e\u51fa\u53e3\u8d28\u91cf\uff1a\u90e8\u5206\u7f8e\u56fdVPS \u5e26\u5bbd\u4fbf\u5b9c\u4f46\u5230\u4e9a\u592a\u8def\u5f84\u53ef\u80fd\u5b58\u5728\u6296\u52a8\u6216\u4e22\u5305\uff1b\u9999\u6e2f\u670d\u52a1\u5668\u901a\u5e38\u63d0\u4f9b\u66f4\u7a33\u5b9a\u7684\u4e9a\u592a\u4e92\u8054\u51fa\u53e3\uff0c\u4f46\u6210\u672c\u7565\u9ad8\u3002<\/li>\n<li>\u5408\u89c4\u4e0e\u4f20\u8f93\u8def\u5f84\uff1a\u8de8\u5883\u5408\u89c4\uff08\u4f8b\u5982\u5927\u9646\u7528\u6237\u8bbf\u95ee\uff09\u548c\u8fd0\u8425\u5546\u4e92\u8054\u7b56\u7565\u4f1a\u5f71\u54cd\u771f\u5b9e\u8868\u73b0\uff0c\u5efa\u8bae\u505a MTR\/traceroute \u5b9e\u6d4b\u3002<\/li>\n<\/ul>\n<p>\u9009\u8d2d\u5efa\u8bae\uff1a<\/p>\n<ul>\n<li>\u4e1a\u52a1\u4e3b\u8981\u9762\u5411\u4e2d\u56fd\/\u4e1c\u5357\u4e9a\uff1a\u4f18\u5148\u8003\u8651\u9999\u6e2fVPS\uff0c\u914d\u5408\u8fb9\u7f18 CDN\u3002<\/li>\n<li>\u82e5\u9762\u5411\u5317\u7f8e\u7528\u6237\u4e14\u9884\u7b97\u654f\u611f\uff1a\u53ef\u9009\u62e9\u7f8e\u56fdVPS\uff0c\u5e76\u901a\u8fc7\u591a\u533a\u57df\u90e8\u7f72\u4e0e Anycast \u51cf\u5c11\u5ef6\u8fdf\u3002<\/li>\n<li>\u5173\u6ce8 VPS \u7684\u7f51\u7edc\u5c42\u80fd\u529b\uff1a\u662f\u5426\u652f\u6301\u591a\u961f\u5217\u3001SR-IOV\u3001\u88f8\u91d1\u5c5e\u7f51\u7edc\u6027\u80fd\u4ee5\u53ca\u662f\u5426\u5141\u8bb8\u4fee\u6539\u5185\u6838\u53c2\u6570\u4e0e\u5f00\u542f BBR\u3002<\/li>\n<\/ul>\n<h2>\u76d1\u63a7\u4e0e\u56de\u5f52\u6d4b\u8bd5<\/h2>\n<p>\u8c03\u4f18\u4e0d\u662f\u4e00\u6b21\u6027\u5de5\u4f5c\uff0c\u9700\u6301\u7eed\u76d1\u6d4b\u4e0e\u56de\u5f52\u6d4b\u8bd5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528 iperf3\u3001mtr\u3001ping\u3001ss\u3001netstat \u7b49\u5de5\u5177\u505a\u541e\u5410\u4e0e\u4e22\u5305\u6d4b\u8bd5\u3002<\/li>\n<li>\u5728\u771f\u5b9e\u6d41\u91cf\u4e0b\u89c2\u5bdf TCP RTT\u3001\u91cd\u4f20\u7387\u3001\u62e5\u585e\u7a97\u53e3\uff08\u901a\u8fc7 ss -ti \u67e5\u770b recv-q\/send-q \u4e0e cwnd\uff09\u3002<\/li>\n<li>\u90e8\u7f72 A\/B \u6d4b\u8bd5\uff1a\u9010\u6b65\u5728\u5c11\u91cf\u5b9e\u4f8b\u542f\u7528 BBR \u6216\u5176\u4ed6\u6539\u52a8\uff0c\u89c2\u5bdf\u5bf9\u4e1a\u52a1\u5ef6\u8fdf\u4e0e\u9519\u8bef\u7387\u7684\u5f71\u54cd\uff0c\u518d\u8fdb\u884c\u5168\u9762\u63a8\u5e7f\u3002<\/li>\n<\/ul>\n<p>\u6b64\u5916\uff0c\u5229\u7528 eBPF \u6216 tcpdump \u5bf9\u5f02\u5e38\u6d41\u91cf\u8fdb\u884c\u5b9a\u4f4d\uff0c\u53ef\u4ee5\u5feb\u901f\u53d1\u73b0\u94fe\u8def\u6216\u5e94\u7528\u5c42\u7684\u95ee\u9898\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u5bf9\u9999\u6e2fVPS \u8fdb\u884c TCP \u8c03\u4f18\uff0c\u53ef\u4ee5\u5728\u4e0d\u66f4\u6362\u786c\u4ef6\u7684\u524d\u63d0\u4e0b\u663e\u8457\u63d0\u5347\u541e\u5410\u5e76\u51cf\u5c11\u5ef6\u8fdf\uff0c\u5c24\u5176\u5bf9\u9762\u5411\u4e9a\u592a\u7684\u670d\u52a1\u6548\u679c\u660e\u663e\u3002\u5173\u952e\u70b9\u5305\u62ec\uff1a\u9009\u62e9\u5408\u9002\u7684\u62e5\u585e\u63a7\u5236\uff08\u5982 BBR\uff09\u3001\u8c03\u6574 socket \u7f13\u51b2\u4e0e\u7a97\u53e3\u7f29\u653e\u3001\u91c7\u7528\u5148\u8fdb\u961f\u5217\u7ba1\u7406\uff08fq_codel\uff09\u3001\u4f18\u5316\u7f51\u5361\u5378\u8f7d\u4e0e\u4e2d\u65ad\u5206\u914d\uff0c\u5e76\u7ed3\u5408\u4e1a\u52a1\u573a\u666f\u9009\u62e9\u4e0d\u540c\u7b56\u7565\u3002\u4e0e\u7f8e\u56fdVPS \u6216\u7f8e\u56fd\u670d\u52a1\u5668 \u6bd4\u8f83\uff0c\u9999\u6e2f\u670d\u52a1\u5668\u5728\u5730\u7406\u4f18\u52bf\u4e0a\u66f4\u9002\u5408\u4e9a\u592a\u7528\u6237\uff0c\u4f46\u4ecd\u9700\u5173\u6ce8\u94fe\u8def\u8d28\u91cf\u4e0e\u8fd0\u8425\u5546\u7b56\u7565\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u8bc4\u4f30\u9999\u6e2fVPS \u6216\u5e0c\u671b\u76f4\u63a5\u6d4b\u8bd5\u914d\u7f6e\u6548\u679c\uff0c\u53ef\u4ee5\u53c2\u8003 Server.HK \u7684\u4ea7\u54c1\u4e0e\u6587\u6863\u4e86\u89e3\u5b9e\u4f8b\u89c4\u683c\u4e0e\u7f51\u7edc\u80fd\u529b\uff1a<a href=\"https:\/\/www.server.hk\/cloud.php\">\u9999\u6e2fVPS \u65b9\u6848<\/a>\uff1b\u66f4\u591a\u8d44\u8baf\u4e0e\u670d\u52a1\u8bf7\u8bbf\u95ee <a href=\"https:\/\/www.server.hk\/\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u679c\u4f60\u5728\u7528\u9999\u6e2fVPS\u627f\u8f7d\u9762\u5411\u4e2d\u56fd\u5927\u9646\u548c\u4e1c\u5357\u4e9a\u7684\u670d\u52a1\uff0c\u7cfb\u7edf\u6027\u7684\u9999\u6e2fVPS 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