{"id":57731,"date":"2025-03-08T11:56:54","date_gmt":"2025-03-08T03:56:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/57731\/"},"modified":"2025-03-08T11:56:54","modified_gmt":"2025-03-08T03:56:54","slug":"%e6%90%ac%e7%93%a6%e5%b7%a5%e5%a6%82%e4%bd%95%e5%bc%80%e5%90%af-google-bbr","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/57731\/","title":{"rendered":"\u642c\u74e6\u5de5\u5982\u4f55\u5f00\u542f Google BBR"},"content":{"rendered":"<p>\u5728\u73b0\u4ee3\u7f51\u7edc\u73af\u5883\u4e2d\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u4eba\u9009\u62e9\u4f7f\u7528VPS\uff08\u865a\u62df\u79c1\u4eba\u670d\u52a1\u5668\uff09\u6765\u63d0\u5347\u4ed6\u4eec\u7684\u7f51\u7ad9\u6027\u80fd\u3002\u800cGoogle BBR\uff08Bottleneck Bandwidth and Round-trip propagation time\uff09\u4f5c\u4e3a\u4e00\u79cd\u7f51\u7edc\u52a0\u901f\u6280\u672f\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347TCP\u4f20\u8f93\u7684\u6548\u7387\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728\u642c\u74e6\u5de5\u7684VPS\u4e0a\u5f00\u542fGoogle BBR\u3002<\/p>\n<h2>\u4ec0\u4e48\u662fGoogle BBR\uff1f<\/h2>\n<p><em>Google BBR<\/em> \u662fGoogle\u63a8\u51fa\u7684\u4e00\u79cdTCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u4e0e\u4f20\u7edf\u7684\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u76f8\u6bd4\uff0c\u5b83\u80fd\u591f\u66f4\u597d\u5730\u5229\u7528\u7f51\u7edc\u5e26\u5bbd\uff0c\u964d\u4f4e\u5ef6\u8fdf\uff0c\u5c24\u5176\u5728\u9ad8\u5ef6\u8fdf\u548c\u9ad8\u4e22\u5305\u7387\u7684\u7f51\u7edc\u73af\u5883\u4e2d\u3002<\/p>\n<h3>Google BBR\u7684\u4f18\u70b9<\/h3>\n<ul>\n<li><strong>\u63d0\u5347\u7f51\u7edc\u901f\u5ea6<\/strong>\uff1a\u80fd\u6709\u6548\u63d0\u5347\u4f20\u8f93\u901f\u5ea6\uff0c\u7279\u522b\u662f\u5728\u957f\u8ddd\u79bb\u7f51\u7edc\u4e2d\u3002<\/li>\n<li><strong>\u964d\u4f4e\u5ef6\u8fdf<\/strong>\uff1a\u663e\u8457\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5ef6\u8fdf\u3002<\/li>\n<li><strong>\u9002\u5e94\u6027\u5f3a<\/strong>\uff1a\u80fd\u591f\u5728\u5404\u79cd\u7f51\u7edc\u6761\u4ef6\u4e0b\u4f18\u5316\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2>\u5728\u642c\u74e6\u5de5\u5f00\u542fGoogle BBR\u7684\u51c6\u5907\u5de5\u4f5c<\/h2>\n<p>\u5728\u8fdb\u884c\u64cd\u4f5c\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u4ee5\u4e0b\u6761\u4ef6\uff1a<\/p>\n<ol>\n<li><strong>VPS\u73af\u5883<\/strong>\uff1a\u4f60\u9700\u8981\u62e5\u6709\u4e00\u4e2a\u8fd0\u884c\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\uff08\u5982Ubuntu, CentOS\u7b49\uff09\u7684\u642c\u74e6\u5de5VPS\u3002<\/li>\n<li><strong>SSH\u8bbf\u95ee\u6743\u9650<\/strong>\uff1a\u786e\u4fdd\u4f60\u53ef\u4ee5\u901a\u8fc7SSH\u767b\u5f55\u5230\u4f60\u7684VPS\u3002<\/li>\n<li><strong>Linux\u5185\u6838\u7248\u672c<\/strong>\uff1a\u9700\u8981\u4f7f\u75284.9\u53ca\u4ee5\u4e0a\u7248\u672c\u7684Linux\u5185\u6838\u3002<\/li>\n<\/ol>\n<h3>\u68c0\u67e5\u5185\u6838\u7248\u672c<\/h3>\n<p>\u4f60\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u5f53\u524dLinux\u5185\u6838\u7248\u672c\uff1a<br \/> bash<br \/> uname -r<\/p>\n<p>\u5982\u679c\u4f60\u7684\u5185\u6838\u7248\u672c\u4f4e\u4e8e4.9\uff0c\u5efa\u8bae\u5148\u5347\u7ea7\u5185\u6838\u3002<\/p>\n<h2>\u5347\u7ea7Linux\u5185\u6838\uff08\u53ef\u9009\uff09<\/h2>\n<p>\u5982\u679c\u9700\u8981\u5347\u7ea7\u5185\u6838\uff0c\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u6b65\u9aa4\uff08\u4ee5Ubuntu\u4e3a\u4f8b\uff09\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u66f4\u65b0\u5305\u7ba1\u7406\u5668<\/strong>\uff1a<br \/> bash<br \/> sudo apt update<\/p>\n<\/li>\n<li>\n<p><strong>\u5b89\u88c5\u65b0\u7684\u5185\u6838<\/strong>\uff1a<br \/> bash<br \/> sudo apt install linux-generic-hwe-18.04<\/p>\n<\/li>\n<li>\n<p><strong>\u91cd\u542f\u670d\u52a1\u5668<\/strong>\uff1a<br \/> bash<br \/> sudo reboot<\/p>\n<\/li>\n<\/ol>\n<h2>\u5982\u4f55\u5728\u642c\u74e6\u5de5\u5f00\u542fGoogle BBR<\/h2>\n<p>\u73b0\u5728\u6211\u4eec\u5f00\u59cb\u5f00\u542fBBR\u3002\u8bf7\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n<ol>\n<li>\n<p><strong>SSH\u767b\u5f55VPS<\/strong>\uff1a\u4f7f\u7528SSH\u5de5\u5177\uff08\u5982PuTTY\u6216\u7ec8\u7aef\uff09\u767b\u5f55\u5230\u4f60\u7684VPS\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4fee\u6539sysctl.conf\u6587\u4ef6<\/strong>\uff1a<br \/> bash<br \/> sudo nano \/etc\/sysctl.conf<\/p>\n<\/li>\n<li>\n<p><strong>\u6dfb\u52a0\u4ee5\u4e0b\u884c<\/strong>\uff1a\u5728\u6587\u4ef6\u672b\u5c3e\u6dfb\u52a0\uff1a<br \/> bash<br \/> net.core.default_qdisc=fq<br \/> net.ipv4.tcp_congestion_control=bbr<\/p>\n<\/li>\n<li>\n<p><strong>\u4fdd\u5b58\u5e76\u9000\u51fa<\/strong>\uff1a\u6309 <code>CTRL + X<\/code>\uff0c\u7136\u540e\u6309 <code>Y<\/code> \u4fdd\u5b58\u66f4\u6539\u5e76\u9000\u51fa\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5e94\u7528\u66f4\u6539<\/strong>\uff1a<br \/> bash<br \/> sudo sysctl -p<\/p>\n<\/li>\n<li>\n<p><strong>\u9a8c\u8bc1BBR\u662f\u5426\u5f00\u542f<\/strong>\uff1a\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5BBR\u662f\u5426\u6210\u529f\u542f\u7528\uff1a<br \/> bash<br \/> sysctl net.ipv4.tcp_congestion_control<\/p>\n<p>\u5982\u679c\u8f93\u51fa\u4e3a\u201cbbr\u201d\uff0c\u5219\u8bf4\u660e\u6210\u529f\u5f00\u542fBBR\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u5982\u4f55\u68c0\u67e5BBR\u7684\u6027\u80fd<\/h2>\n<p>\u4e3a\u4e86\u786e\u8ba4BBR\u7684\u6548\u679c\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u67e5\u770bTCP\u8fde\u63a5\u7684\u5ef6\u8fdf\u548c\u5e26\u5bbd\uff1a<br \/> bash<br \/> ss -t -i<\/p>\n<p>\u89c2\u5bdf\u5176\u4e2d\u7684 <code>rtt<\/code>\uff08\u5f80\u8fd4\u65f6\u95f4\uff09\u548c <code>snd_wnd<\/code>\uff08\u53d1\u9001\u7a97\u53e3\uff09\uff0c\u8fd9\u4e9b\u503c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u4e86\u89e3BBR\u7684\u6027\u80fd\u3002<\/p>\n<h2>\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\uff08FAQ\uff09<\/h2>\n<h3>1. BBR\u548c\u5176\u4ed6TCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>BBR\u4e0e\u5176\u4ed6\u7b97\u6cd5\uff08\u5982CUBIC, Reno\u7b49\uff09\u76f8\u6bd4\uff0c\u6ce8\u91cd\u4e8e\u52a8\u6001\u8c03\u8282\u5e26\u5bbd\u548c\u5ef6\u8fdf\uff0c\u4ee5\u63d0\u5347\u6570\u636e\u4f20\u8f93\u7684\u6574\u4f53\u6548\u7387\u3002\u5b83\u7684\u521b\u65b0\u70b9\u5728\u4e8e\u8003\u8651\u4e86\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u7f51\u7edc\u53d8\u5316\u60c5\u51b5\uff0c\u505a\u51fa\u66f4\u5feb\u7684\u8c03\u6574\u3002<\/p>\n<h3>2. \u4f7f\u7528BBR\u540e\uff0c\u6211\u7684VPS\u901f\u5ea6\u4f1a\u660e\u663e\u63d0\u5347\u5417\uff1f<\/h3>\n<p>\u5927\u90e8\u5206\u7528\u6237\u53cd\u6620\uff0c\u4f7f\u7528BBR\u540e\uff0c\u4ed6\u4eec\u7684\u7f51\u7ad9\u5728\u8bbf\u95ee\u901f\u5ea6\u548c\u54cd\u5e94\u65f6\u95f4\u4e0a\u6709\u660e\u663e\u63d0\u5347\u3002\u4f46\u6548\u679c\u53ef\u80fd\u56e0\u7f51\u7edc\u73af\u5883\u7684\u4e0d\u540c\u800c\u6709\u6240\u5dee\u5f02\u3002<\/p>\n<h3>3. \u5982\u4f55\u7981\u7528BBR\uff1f<\/h3>\n<p>\u5982\u679c\u9700\u8981\u7981\u7528BBR\uff0c\u53ea\u9700\u5c06 <code>\/etc\/sysctl.conf<\/code> \u4e2d\u7684\u76f8\u5173\u884c\u5220\u9664\uff0c\u6216\u5c06\u5176\u503c\u66f4\u6539\u4e3a\u9ed8\u8ba4\u503c\uff0c\u6700\u540e\u6267\u884c <code>sudo sysctl -p<\/code> \u4f7f\u66f4\u6539\u751f\u6548\u5373\u53ef\u3002<\/p>\n<h3>4. BBR\u9002\u5408\u6240\u6709\u7c7b\u578b\u7684\u7f51\u7ad9\u5417\uff1f<\/h3>\n<p>BBR\u7279\u522b\u9002\u5408\u9700\u8981\u9ad8\u5e26\u5bbd\u548c\u4f4e\u5ef6\u8fdf\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u6bd4\u5982\u5728\u7ebf\u6e38\u620f\u3001\u89c6\u9891\u6d41\u670d\u52a1\u7b49\u3002\u4f46\u5bf9\u4e8e\u4e00\u4e9b\u5c0f\u578b\u7f51\u7ad9\u6216\u4f4e\u6d41\u91cf\u7f51\u7ad9\uff0c\u5f71\u54cd\u53ef\u80fd\u4e0d\u90a3\u4e48\u660e\u663e\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u6211\u4eec\u5df2\u7ecf\u6210\u529f\u5728\u642c\u74e6\u5de5VPS\u4e0a\u5f00\u542f\u4e86Google BBR\u3002BBR\u7684\u4f7f\u7528\u53ef\u4ee5\u6781\u5927\u63d0\u5347\u7f51\u7edc\u6027\u80fd\uff0c\u5c24\u5176\u5728\u7f51\u7edc\u4e0d\u7a33\u5b9a\u7684\u60c5\u51b5\u4e0b\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u5229\u7528\u4f60\u7684VPS\u3002\u5982\u679c\u4f60\u5728\u8fc7\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\uff0c\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00\u8ba8\u8bba\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u73b0\u4ee3\u7f51\u7edc\u73af\u5883\u4e2d\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u4eba\u9009\u62e9\u4f7f\u7528VPS\uff08\u865a\u62df\u79c1\u4eba\u670d\u52a1\u5668\uff09\u6765\u63d0\u5347\u4ed6\u4eec\u7684\u7f51\u7ad9\u6027\u80fd\u3002\u800cGoogle BBR\uff08Bottleneck Bandwidth and Round-trip propagation time\uff09\u4f5c\u4e3a\u4e00\u79cd\u7f51\u7edc\u52a0\u901f\u6280\u672f\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347TCP\u4f20\u8f93\u7684\u6548\u7387\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u5728\u642c\u74e6\u5de5\u7684VPS\u4e0a\u5f00\u542fGoogle BBR\u3002 \u4ec0\u4e48\u662fGoogle BBR\uff1f Google BBR \u662fGoogle\u63a8\u51fa\u7684\u4e00\u79cdTCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u4e0e\u4f20\u7edf\u7684\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u76f8\u6bd4\uff0c\u5b83\u80fd\u591f\u66f4\u597d\u5730\u5229\u7528\u7f51\u7edc\u5e26\u5bbd\uff0c\u964d\u4f4e\u5ef6\u8fdf\uff0c\u5c24\u5176\u5728\u9ad8\u5ef6\u8fdf\u548c\u9ad8\u4e22\u5305\u7387\u7684\u7f51\u7edc\u73af\u5883\u4e2d\u3002 Google BBR\u7684\u4f18\u70b9 \u63d0\u5347\u7f51\u7edc\u901f\u5ea6\uff1a\u80fd\u6709\u6548\u63d0\u5347\u4f20\u8f93\u901f\u5ea6\uff0c\u7279\u522b\u662f\u5728\u957f\u8ddd\u79bb\u7f51\u7edc\u4e2d\u3002 \u964d\u4f4e\u5ef6\u8fdf\uff1a\u663e\u8457\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u5ef6\u8fdf\u3002 \u9002\u5e94\u6027\u5f3a\uff1a\u80fd\u591f\u5728\u5404\u79cd\u7f51\u7edc\u6761\u4ef6\u4e0b\u4f18\u5316\u6027\u80fd\u3002 \u5728\u642c\u74e6\u5de5\u5f00\u542fGoogle BBR\u7684\u51c6\u5907\u5de5\u4f5c \u5728\u8fdb\u884c\u64cd\u4f5c\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u4ee5\u4e0b\u6761\u4ef6\uff1a VPS\u73af\u5883\uff1a\u4f60\u9700\u8981\u62e5\u6709\u4e00\u4e2a\u8fd0\u884c\u5728Linux\u64cd\u4f5c\u7cfb\u7edf\uff08\u5982Ubuntu, CentOS\u7b49\uff09\u7684\u642c\u74e6\u5de5VPS\u3002 SSH\u8bbf\u95ee\u6743\u9650\uff1a\u786e\u4fdd\u4f60\u53ef\u4ee5\u901a\u8fc7SSH\u767b\u5f55\u5230\u4f60\u7684VPS\u3002 Linux\u5185\u6838\u7248\u672c\uff1a\u9700\u8981\u4f7f\u75284.9\u53ca\u4ee5\u4e0a\u7248\u672c\u7684Linux\u5185\u6838\u3002 \u68c0\u67e5\u5185\u6838\u7248\u672c \u4f60\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u5f53\u524dLinux\u5185\u6838\u7248\u672c\uff1a bash uname -r \u5982\u679c\u4f60\u7684\u5185\u6838\u7248\u672c\u4f4e\u4e8e4.9\uff0c\u5efa\u8bae\u5148\u5347\u7ea7\u5185\u6838\u3002 \u5347\u7ea7Linux\u5185\u6838\uff08\u53ef\u9009\uff09 \u5982\u679c\u9700\u8981\u5347\u7ea7\u5185\u6838\uff0c\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u6b65\u9aa4\uff08\u4ee5Ubuntu\u4e3a\u4f8b\uff09\uff1a \u66f4\u65b0\u5305\u7ba1\u7406\u5668\uff1a bash sudo apt update \u5b89\u88c5\u65b0\u7684\u5185\u6838\uff1a bash sudo apt install linux-generic-hwe-18.04 \u91cd\u542f\u670d\u52a1\u5668\uff1a bash sudo reboot \u5982\u4f55\u5728\u642c\u74e6\u5de5\u5f00\u542fGoogle BBR \u73b0\u5728\u6211\u4eec\u5f00\u59cb\u5f00\u542fBBR\u3002\u8bf7\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a SSH\u767b\u5f55VPS\uff1a\u4f7f\u7528SSH\u5de5\u5177\uff08\u5982PuTTY\u6216\u7ec8\u7aef\uff09\u767b\u5f55\u5230\u4f60\u7684VPS\u3002 \u4fee\u6539sysctl.conf\u6587\u4ef6\uff1a bash sudo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-57731","post","type-post","status-publish","format-standard","hentry","category-vpn"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/57731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=57731"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/57731\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=57731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=57731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=57731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}