1.更新源 ``` yum update rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-4.el7.elrepo.noarch.rpm ``` 2.确认目前的版本信息 ``` uname -r ``` 3.删除相关组件 ``` yum remove kernel-headers kernel-tools kernel-tools-libs ``` 4.安装相关组件 ``` yum -y --disablerepo="*" --enablerepo="elrepo-kernel" install kernel-ml kernel-ml-devel kernel-ml-headers kernel-ml-tools kernel-ml-tools-libs kernel-ml-tools-libs-devel sed -i '/GRUB_DEFAULT/s/=.*/=0/' /etc/default/grub grub2-mkconfig -o /boot/grub2/grub.cfg reboot ``` 确认是否升级成功 ``` uname -r ``` 安装gcc和bcc-tools ``` yum install -y elfutils-libelf-devel flex yum install -y gcc-c++ yum install -y bcc-tools ``` 确认安装成功 ``` [root@localhost ~]# cachestat 1 TOTAL MISSES HITS DIRTIES BUFFERS_MB CACHED_MB 0 0 0 0 2 416 0 0 0 0 2 416 0 0 0 0 2 416 ... ```