{"id":1209,"date":"2019-04-01T14:46:39","date_gmt":"2019-04-01T14:46:39","guid":{"rendered":"https:\/\/getwid.getmotopress.com\/?p=6"},"modified":"2022-12-30T09:06:14","modified_gmt":"2022-12-30T09:06:14","slug":"seven-retirement-saving-ideas","status":"publish","type":"post","link":"http:\/\/www.dingjunkj.com\/?p=1209","title":{"rendered":"\u4e91\u670d\u52a1\u5668\u5b89\u88c5BBR"},"content":{"rendered":"\n<p><strong>\u4ecb\u7ecd<\/strong><\/p>\n\n\n\n<p>BBR\u662f<strong>\u4e00\u79cd\u52a0\u901fTCP\u7684\u62e5\u5835\u7b97\u6cd5\u6280\u672f<\/strong>\u3002 BBR \u5229\u7528\u74f6\u9888\u5e26\u5bbd\u548c\u5f80\u8fd4\u4f20\u64ad\u65f6\u95f4\uff0c\u88ab\u8ba4\u4e3a\u662f\u8fc4\u4eca\u4e3a\u6b62\u8de8\u8d8a\u4e0d\u540c\u8def\u7531\u53d1\u9001\u6570\u636e\u7684\u6700\u5feb\u65b9\u6cd5\uff0c\u5f53\u6570\u636e\u8def\u7531\u62e5\u6324\u65f6\uff0c\u80fd\u591f\u66f4\u6709\u6548\u5730\u5904\u7406\u6d41\u91cf\u3002 \u8c37\u6b4c\u5f00\u53d1\u51fa\u4e86\u4e00\u79cd\u52a0\u901f\u7f51\u7edc\u4f20\u8f93\u534f\u8baeTCP \u7684\u65b0\u7b97\u6cd5\uff0c\u8fd9\u79cd\u7b97\u6cd5\u901a\u8fc7\u4f18\u5316\u4f20\u8f93\u901f\u5ea6\uff0c\u907f\u514d\u8def\u7531\u5835\u585e\u73b0\u8c61\u7684\u4ea7\u751f\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h3-u5B89u88C5\">\u5b89\u88c5<\/h3>\n\n\n\n<p>\u6ce8\u610f: <em>CentOS7<\/em>\u9ed8\u8ba4<em>\u81ea\u5e26<\/em>\u7684<em>\u5185\u6838<\/em>\u90fd\u662f3.10.x\uff0c\u8981\u542f\u7528<em>BBR<\/em>\uff0c\u6211\u4eec\u8981\u66f4\u6362\u62104.9+<em>\u5185\u6838<\/em>\u7248\u672c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>1.\u67e5\u770b\u7cfb\u7edf\u7248\u672c<\/code>\n<code>cat \/etc\/redhat-release<\/code>\n<code>2.\u5b89\u88c5elrepo\u5e76\u5347\u7ea7\u5185\u6838<\/code>\n<code>rpm --import https:\/\/www.elrepo.org\/RPM-GPG-KEY-elrepo.org<\/code>\n<code>rpm -Uvh http:\/\/www.elrepo.org\/elrepo-release-7.0-2.el7.elrepo.noarch.rpm<\/code>\n<code>yum --enablerepo=elrepo-kernel install kernel-ml -y<\/code>\n<code>3.\u5b89\u88c5\u5b8c\u6210\u540e\u4f7f\u7528\u4e0b\u9762\u547d\u4ee4\u67e5\u770b\u5f53\u524d\u5df2\u5b89\u88c5\u7684\u5185\u6838<\/code>\n<code>awk -F\\' '$1==\"menuentry \" {print i++ \" : \" $2}' \/etc\/grub2.cfg<\/code>\n<code>4. \u8bbe\u7f6e\u542f\u52a8\u5185\u6838<\/code>\n<code>grub2-set-default 0<\/code>\n<code>5.\u91cd\u542f\u670d\u52a1\u5668<\/code>\n<code>reboot<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h4-u914Du7F6Ebbr\"><a><\/a>\u914d\u7f6eBBR<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>1.\u7f16\u8f91\u914d\u7f6e\u6587\u4ef6\uff0c\u6dfb\u52a0\u5185\u5bb9vi \/etc\/sysctl.conf<\/code>\n<code>net.core.default_qdisc = fqnet.ipv4.tcp_congestion_control = bbr<\/code>\n<code>2.\u52a0\u8f7d\u7cfb\u7edf\u53c2\u6570<\/code>\n<code>sysctl -p<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h4-u9A8Cu8BC1\"><a><\/a>\u9a8c\u8bc1<\/h4>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>1.\u9a8c\u8bc1bbr\u662f\u5426\u5df2\u7ecf\u5f00\u542fsysctl net.ipv4.tcp_available_congestion_control<\/code>\n<code>\u8fd4\u56de\u5982\u4e0b\u662f\u6210\u529f<\/code>\n<code>net.ipv4.tcp_available_congestion_control = reno cubic bbr<\/code>\n<code>2.\u8f93\u5165lsmod | grep bbr<\/code>\n<code>\u8fd4\u56de\u5982\u4e0b\u6210\u529f<\/code>\n<code>tcp_bbr 20480 2<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd BBR\u662f\u4e00\u79cd\u52a0\u901fTCP\u7684\u62e5\u5835\u7b97\u6cd5\u6280\u672f\u3002 BB [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":359,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1209","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/posts\/1209","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1209"}],"version-history":[{"count":10,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/posts\/1209\/revisions"}],"predecessor-version":[{"id":1273,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/posts\/1209\/revisions\/1273"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=\/wp\/v2\/media\/359"}],"wp:attachment":[{"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1209"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.dingjunkj.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}