\t\t\t\tGoogle \u5f00\u6e90\u4e86\u5176 TCP BBR \u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u5e76\u63d0\u4ea4\u5230\u4e86 Linux \u5185\u6838\uff0c\u4ece 4.9 \u5f00\u59cb\uff0cLinux \u5185\u6838\u5df2\u7ecf\u7528\u4e0a\u4e86\u8be5\u7b97\u6cd5\u3002\u6839\u636e\u4ee5\u5f80\u7684\u4f20\u7edf\uff0cGoogle \u603b\u662f\u5148\u5728\u81ea\u5bb6\u7684\u751f\u4ea7\u73af\u5883\u4e0a\u7ebf\u8fd0\u7528\u540e\uff0c\u624d\u4f1a\u5c06\u4ee3\u7801\u5f00\u6e90\uff0c\u6b64\u6b21\u4e5f\u4e0d\u4f8b\u5916\u3002
\n\u6839\u636e\u5b9e\u5730\u6d4b\u8bd5\uff0c\u5728\u90e8\u7f72\u4e86\u6700\u65b0\u7248\u5185\u6838\u5e76\u5f00\u542f\u4e86 TCP BBR \u7684\u673a\u5668\u4e0a\uff0c\u7f51\u901f\u751a\u81f3\u53ef\u4ee5\u63d0\u5347\u597d\u51e0\u4e2a\u6570\u91cf\u7ea7\u3002<\/p>\n
\u5b89\u88c5<\/p>\n
CentOS 7.3<\/p>\n
1\u3001yum\u7cfb\u7edf\u66f4\u65b0\uff08\u66f4\u65b0\u5230CentOS 7.3\uff09<\/p>\n
yum update
\n2\u3001\u67e5\u770b\u7cfb\u7edf\u7248\u672c<\/p>\n
cat \/etc\/redhat-release
\n\u8f93\u51fa\u5982\u4e0b\uff08release\u6570\u503c\u5927\u4e8e7.3\u5373\u53ef\uff09\uff0c\u5219\u8868\u793a\u5df2\u5347\u7ea7\u52307.3<\/p>\n
CentOS Linux release 7.3.1611 (Core)
\n3\u3001\u5b89\u88c5elrepo\u5e76\u5347\u7ea7\u5185\u6838<\/p>\n
rpm –import https:\/\/www.elrepo.org\/RPM-GPG-KEY-elrepo.org
\nrpm -Uvh http:\/\/www.elrepo.org\/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
\nyum –enablerepo=elrepo-kernel install kernel-ml -y
\n\u6b63\u5e38\u60c5\u51b5\u4e0b\u5c06\u8f93\u51fa\u5982\u4e0b\u4fe1\u606f\uff1a<\/p>\n
Transaction Summary
\n================================================================================
\nInstall 1 Package
\nTotal download size: 39 M
\nInstalled size: 169 M
\nDownloading packages:
\nkernel-ml-4.9.0-1.el7.elrepo.x86_64.rpm | 39 MB 00:00
\nRunning transaction check
\nRunning transaction test
\nTransaction test succeeded
\nRunning transaction
\nWarning: RPMDB altered outside of yum.
\nInstalling : kernel-ml-4.9.0-1.el7.elrepo.x86_64 1\/1
\nVerifying : kernel-ml-4.9.0-1.el7.elrepo.x86_64 1\/1
\nInstalled:
\nkernel-ml.x86_64 0:4.9.0-1.el7.elrepo
\nComplete!
\n4\u3001\u66f4\u65b0grub\u6587\u4ef6\u5e76\u91cd\u542f\uff08reboot\u540e\uff0cssh\u4f1a\u65ad\u5f00\uff0c\u7a0d\u7b49\u4e00\u4f1a\u513f\u91cd\u65b0\u8fde\u63a5\uff09<\/p>\n
egrep ^menuentry \/etc\/grub2.cfg | cut -f 2 -d \\’
\ngrub2-set-default 0
\nreboot
\n5\u3001\u5f00\u673a\u540e\u67e5\u770b\u5185\u6838\u662f\u5426\u5df2\u66f4\u6362\u4e3a4.9<\/p>\n
uname -r
\n\u8f93\u51fa\u5982\u4e0b\u5185\u5bb9\u5219\u8868\u793a\u5185\u68384.9\u5df2\u7ecf\u542f\u52a8\u4e86\uff08\u6570\u503c\u5927\u4e8e4.9\u5373\u53ef\uff09<\/p>\n
4.9.0-1.el7.elrepo.x86_64
\nCentOS 7.4<\/p>\n
\u5bfc\u5165 elrepo \u8f6f\u4ef6\u6e90\u7684 GPG \u516c\u94a5<\/p>\n
rpm –import https:\/\/www.elrepo.org\/RPM-GPG-KEY-elrepo.org
\n\u5bfc\u5165 elrepo \u8f6f\u4ef6\u6e90<\/p>\n
\u8bf4\u660e\uff1a\u8be5\u5730\u5740\u53ef\u4ee5\u81ea\u52a8\u4e0b\u8f7d\u8be5\u6e90\u7684\u6700\u65b0\u7684\u8f6f\u4ef6\u5217\u8868\uff0c\u65e0\u9700\u4fee\u6539\u5730\u5740\u3002<\/p>\n
rpm -Uvh http:\/\/www.elrepo.org\/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
\n\u4e0b\u8f7d\u5e76\u5b89\u88c5\u65b0\u7684\u5185\u6838<\/p>\n
\u542f\u7528\u8f6f\u4ef6\u6e90\u5e76\u4e0b\u8f7d\u5b89\u88c5\u6700\u65b0\u7a33\u5b9a\u7248\u5185\u6838<\/p>\n
yum -y –enablerepo=elrepo-kernel install kernel-ml
\n\u8bbe\u5b9a Grub \u9ed8\u8ba4\u542f\u52a8\u65b0\u5185\u6838<\/p>\n
\u8bf4\u660e\uff1a\u5982\u679c\u624b\u52a8\u4fee\u6539\u8fc7 Grub \u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u4ee5\u4e0b\u547d\u4ee4\u53ef\u80fd\u65e0\u6cd5\u6267\u884c\u6210\u529f\u3002\u8bf7\u81ea\u884c\u4fee\u6539 Grub \u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n
grub2-set-default 0
\n\u4f7f\u7528\u65b0\u7684\u5185\u6838\u91cd\u542f<\/p>\n
reboot
\n\u68c0\u67e5\u8bbe\u7f6e & \u5220\u9664\u65e7\u7684\u5185\u6838<\/p>\n
\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u7684\u5185\u6838\u7248\u672c\u53f7<\/p>\n
uname -r
\n\u5982\u679c\u8f93\u51fa\u662f 4.10 \u4ee5\u4e0a\u7684\u7248\u672c\uff0c\u8bf4\u660e\u5b89\u88c5\u6210\u529f\u3002<\/p>\n
4.14.13-1.el7.elrepo.x86_64
\n\u5220\u9664\u65e7\u5185\u6838<\/p>\n
\u8bf4\u660e\uff1a\u5220\u9664\u65e7\u5185\u6838\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u9632\u6b62 yum \u66f4\u65b0\u65e7\u7248\u5185\u6838\u4e4b\u540e\u8986\u76d6\u4e86 grub \u9ed8\u8ba4\u542f\u52a8\u9879<\/p>\n
yum -y remove kernel kernel-tools
\n\u5f00\u542fbbr<\/p>\n
vim \/etc\/sysctl.conf
\n\u6dfb\u52a0\u5982\u4e0b\u5185\u5bb9<\/p>\n
net.core.default_qdisc = fq
\nnet.ipv4.tcp_congestion_control = bbr
\n\u52a0\u8f7d\u7cfb\u7edf\u53c2\u6570\uff08\u6b63\u5e38\u60c5\u51b5\u4e0b\u4f1a\u8f93\u51fa\u6211\u4eec\u4e4b\u524d\u52a0\u5165\u7684\u5185\u5bb9\uff09<\/p>\n
sysctl -p
\n\u9a8c\u8bc1bbr\u662f\u5426\u5df2\u7ecf\u5f00\u542f<\/p>\n
a.\u82e5<\/p>\n
sysctl net.ipv4.tcp_available_congestion_control
\n\u8fd4\u56de<\/p>\n
net.ipv4.tcp_available_congestion_control = bbr cubic reno
\n\u5219\u6210\u529f<\/p>\n
b.\u82e5<\/p>\n
lsmod | grep bbr
\n\u8fd4\u56de\u5f62\u5982\u5982\u4e0b\u5f62\u5f0f\u7684\u4fe1\u606f\u5373\u6210\u529f\u3002<\/p>\n
tcp_bbr 16384 1
\ntcp_bbr 20480 0
\n\u539f\u6587\u51fa\u5904\uff1avpswe -> http:\/\/www.vpswe.com\/linux\/651.html\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"
\t\t\t\t\t\t… <\/p>\n