1.关闭numa
2.限制设置 /etc/secuity/limits.conf&网络优化
3.关闭swap
4.IO调度
5.文件系统
6.selinux &iptables
vim /etc/default/grub
GRUB_CMDLINE_LINUX= "numa=off elevator=deadline"
grub2-mkconfig -o /boot/grub2/grub.cfg
echo "fs.file-max=100000" >> /etc/sysctl.conf
cat /sys/block/sda/queue/scheduler
网络&swap参数调优
vim letc/sysctl.conf
net.ipv4.tcp_max_syn_backlog = 819200
net.core.netdev_max_backlog = 400000
net.core.somaxconn = 4096
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_tw_recycle=0
vm.swapiness=5
sysctl -p
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