{"id":16589,"date":"2024-11-18T08:33:20","date_gmt":"2024-11-18T00:33:20","guid":{"rendered":"https:\/\/fwq.ai\/blog\/16589\/"},"modified":"2024-11-18T08:33:20","modified_gmt":"2024-11-18T00:33:20","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8linux%e8%bf%9b%e8%a1%8c%e7%bd%91%e7%bb%9c%e5%b8%a6%e5%ae%bd%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/16589\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u5e26\u5bbd\u4f18\u5316"},"content":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u7f51\u7edc\u5e26\u5bbd\u4f18\u5316<\/p>\n<p>\u7f51\u7edc\u5e26\u5bbd\u7684\u4f18\u5316\u662f\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u548c\u8d28\u91cf\u7684\u5173\u952e\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6709\u8bb8\u591a\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f18\u5316\u7f51\u7edc\u5e26\u5bbd\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u5e76\u9644\u4e0a\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<ol>\n<li>\u8c03\u6574\u5185\u6838\u53c2\u6570<\/li>\n<\/ol>\n<p>\u8c03\u6574Linux\u5185\u6838\u53c2\u6570\u53ef\u4ee5\u6539\u5584\u7f51\u7edc\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u53c2\u6570\u548c\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<p>a) \u4fee\u6539TCP\u7a97\u53e3\u5927\u5c0f<br \/>TCP\u7a97\u53e3\u5927\u5c0f\u51b3\u5b9a\u4e86\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u7684\u901f\u5ea6\u3002\u901a\u8fc7\u589e\u52a0TCP\u7a97\u53e3\u5927\u5c0f\uff0c\u53ef\u4ee5\u52a0\u5feb\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u3002<\/p>\n<p>\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>sudo sysctl -w net.ipv4.tcp_window_scaling=1\nsudo sysctl -w net.ipv4.tcp_rmem='4096 87380 4194304'\nsudo sysctl -w net.ipv4.tcp_wmem='4096 87380 4194304'<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>b) \u5f00\u542fTCP\u5feb\u901f\u6253\u5f00<br \/>TCP\u5feb\u901f\u6253\u5f00\u53ef\u4ee5\u52a0\u5feb\u5efa\u7acbTCP\u8fde\u63a5\u7684\u901f\u5ea6\u3002\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>sudo sysctl -w net.ipv4.tcp_fastopen=3<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>c) \u5f00\u542f\u62e5\u585e\u63a7\u5236\u7b97\u6cd5<br \/>Linux\u652f\u6301\u591a\u79cdTCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u6839\u636e\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u9009\u62e9\u9002\u5408\u7684\u7b97\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u7f51\u7edc\u541e\u5410\u91cf\u3002<\/p>\n<p>\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u67e5\u770b\u5f53\u524d\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff1a<\/p>\n<pre>cat \/proc\/sys\/net\/ipv4\/tcp_congestion_control<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5207\u6362\u5230BBR\u7b97\u6cd5\uff1a<\/p>\n<pre>sudo sysctl -w net.ipv4.tcp_congestion_control=bbr<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u4f18\u5316\u7f51\u7edc\u961f\u5217<\/li>\n<\/ol>\n<p>Linux\u7cfb\u7edf\u4f7f\u7528\u961f\u5217\u6765\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\u3002\u901a\u8fc7\u8c03\u6574\u961f\u5217\u7684\u5927\u5c0f\u548c\u5904\u7406\u65b9\u5f0f\uff0c\u53ef\u4ee5\u51cf\u5c11\u7f51\u7edc\u5ef6\u8fdf\u548c\u4e22\u5305\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<p>\u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u67e5\u770b\u5f53\u524d\u961f\u5217\u957f\u5ea6\uff1a<\/p>\n<pre>sudo sysctl -q net.core.netdev_max_backlog<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5c06\u961f\u5217\u957f\u5ea6\u589e\u52a0\u5230\u6700\u5927\u503c\uff1a<\/p>\n<pre>sudo sysctl -w net.core.netdev_max_backlog=100000<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<ol>\n<li>\u4f7f\u7528\u7f51\u7edc\u52a0\u901f\u5de5\u5177<\/li>\n<\/ol>\n<p>\u7f51\u7edc\u52a0\u901f\u5de5\u5177\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u4f20\u8f93\u534f\u8bae\u548c\u538b\u7f29\u6570\u636e\u6765\u63d0\u9ad8\u7f51\u7edc\u5e26\u5bbd\u3002\u4e0b\u9762\u662f\u4e24\u4e2a\u5e38\u7528\u7684\u7f51\u7edc\u52a0\u901f\u5de5\u5177\uff1a<\/p>\n<p>a) Wondershaper<br \/>Wondershaper\u662f\u4e00\u6b3eLinux\u7f51\u7edc\u5e26\u5bbd\u7ba1\u7406\u5de5\u5177\uff0c\u53ef\u4ee5\u9650\u5236\u5e26\u5bbd\u548c\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>sudo apt-get install wondershaper\nsudo wondershaper eth0 1000 100<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u5c06\u9650\u5236eth0\u63a5\u53e3\u7684\u4e0b\u8f7d\u901f\u5ea6\u4e3a1000 Kbps\uff0c\u4e0a\u4f20\u901f\u5ea6\u4e3a100 Kbps\u3002<\/p>\n<p>b) TC\uff08Traffic Control\uff09<br \/>TC\u662fLinux\u7cfb\u7edf\u81ea\u5e26\u7684\u4e00\u4e2a\u7f51\u7edc\u6d41\u91cf\u63a7\u5236\u5de5\u5177\uff0c\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e0d\u540c\u7684\u8fc7\u6ee4\u5668\u548c\u89c4\u5219\u6765\u4f18\u5316\u7f51\u7edc\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>sudo tc qdisc add dev eth0 root tbf rate 100mbit burst 32kbit latency 400ms<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u5c06\u8bbe\u7f6eeth0\u63a5\u53e3\u7684\u5e26\u5bbd\u4e3a100 Mbps\uff0c\u7a81\u53d1\u901f\u7387\u4e3a32 Kbps\uff0c\u5ef6\u8fdf\u4e3a400 ms\u3002<\/p>\n<p>\u603b\u7ed3\uff1a<\/p>\n<p>\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u901a\u8fc7\u8c03\u6574\u5185\u6838\u53c2\u6570\u3001\u4f18\u5316\u7f51\u7edc\u961f\u5217\u548c\u4f7f\u7528\u7f51\u7edc\u52a0\u901f\u5de5\u5177\uff0c\u6211\u4eec\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u7f51\u7edc\u5e26\u5bbd\u7684\u6027\u80fd\u3002\u4e0a\u8ff0\u65b9\u6cd5\u4ec5\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5e38\u7528\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u6839\u636e\u5b9e\u9645\u60c5\u51b5\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u8fdb\u884c\u9002\u5f53\u8c03\u6574\u548c\u914d\u7f6e\u3002\u795d\u60a8\u5728\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u5e26\u5bbd\u4f18\u5316\u65b9\u9762\u6709\u6240\u6536\u83b7\uff01<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u4f7f\u7528Linux\u8fdb\u884c\u7f51\u7edc\u5e26\u5bbd\u4f18\u5316\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4f7f\u7528linux\u8fdb\u884c\u7f51\u7edc\u5e26\u5bbd\u4f18\u5316 \u7f51\u7edc\u5e26\u5bbd\u7684\u4f18\u5316\u662f\u63d0\u9ad8\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u548c\u8d28\u91cf\u7684\u5173\u952e\u3002\u5728Linux\u7cfb\u7edf\u4e2d\uff0c\u6709\u8bb8\u591a\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4f18\u5316\u7f51\u7edc\u5e26\u5bbd\uff0c\u672c\u6587\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u5e76\u9644\u4e0a\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002 \u8c03\u6574\u5185\u6838\u53c2\u6570 \u8c03\u6574Linux\u5185\u6838\u53c2\u6570\u53ef\u4ee5\u6539\u5584\u7f51\u7edc\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u53c2\u6570\u548c\u793a\u4f8b\u4ee3\u7801\uff1a a) \u4fee\u6539TCP\u7a97\u53e3\u5927\u5c0fTCP\u7a97\u53e3\u5927\u5c0f\u51b3\u5b9a\u4e86\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u7684\u901f\u5ea6\u3002\u901a\u8fc7\u589e\u52a0TCP\u7a97\u53e3\u5927\u5c0f\uff0c\u53ef\u4ee5\u52a0\u5feb\u7f51\u7edc\u4f20\u8f93\u901f\u5ea6\u3002 \u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a sudo sysctl -w net.ipv4.tcp_window_scaling=1 sudo sysctl -w net.ipv4.tcp_rmem=&#8217;4096 87380 4194304&#8242; sudo sysctl -w net.ipv4.tcp_wmem=&#8217;4096 87380 4194304&#8242; \u767b\u5f55\u540e\u590d\u5236 b) \u5f00\u542fTCP\u5feb\u901f\u6253\u5f00TCP\u5feb\u901f\u6253\u5f00\u53ef\u4ee5\u52a0\u5feb\u5efa\u7acbTCP\u8fde\u63a5\u7684\u901f\u5ea6\u3002\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a sudo sysctl -w net.ipv4.tcp_fastopen=3 \u767b\u5f55\u540e\u590d\u5236 c) \u5f00\u542f\u62e5\u585e\u63a7\u5236\u7b97\u6cd5Linux\u652f\u6301\u591a\u79cdTCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u6839\u636e\u4e0d\u540c\u7f51\u7edc\u73af\u5883\u9009\u62e9\u9002\u5408\u7684\u7b97\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u7f51\u7edc\u541e\u5410\u91cf\u3002 \u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u67e5\u770b\u5f53\u524d\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff1a cat \/proc\/sys\/net\/ipv4\/tcp_congestion_control \u767b\u5f55\u540e\u590d\u5236 \u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5207\u6362\u5230BBR\u7b97\u6cd5\uff1a sudo sysctl -w net.ipv4.tcp_congestion_control=bbr \u767b\u5f55\u540e\u590d\u5236 \u4f18\u5316\u7f51\u7edc\u961f\u5217 Linux\u7cfb\u7edf\u4f7f\u7528\u961f\u5217\u6765\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\u3002\u901a\u8fc7\u8c03\u6574\u961f\u5217\u7684\u5927\u5c0f\u548c\u5904\u7406\u65b9\u5f0f\uff0c\u53ef\u4ee5\u51cf\u5c11\u7f51\u7edc\u5ef6\u8fdf\u548c\u4e22\u5305\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\uff1a \u6253\u5f00\u7ec8\u7aef\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u67e5\u770b\u5f53\u524d\u961f\u5217\u957f\u5ea6\uff1a sudo sysctl -q net.core.netdev_max_backlog \u767b\u5f55\u540e\u590d\u5236 \u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5c06\u961f\u5217\u957f\u5ea6\u589e\u52a0\u5230\u6700\u5927\u503c\uff1a sudo sysctl -w [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-16589","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16589","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=16589"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/16589\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=16589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=16589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=16589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}