文件系统
打开文件数限制: /etc/security/limit.conf
* soft nofile 65535
* hard nofile 65535
磁盘调度策略: /sys/block/devname/queue/scheduler
echo deadline > /sys/block/devname/queue/scheduler
XFS
ext4
echo '/dev/sda1/ext4 native,nodiratime,data=writeback 1 1' >> /etc/fstab
内核参数
net.core.somaxconn = 65535
net.core.netdev_max_backlog = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.tcp_fin_timeout = 10
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.core.wmem_default = 87380
net.core.wmem_max = 16777216
net.core.rmem_default = 87380
net.core.rmem_max = 16777216
net.ipv4.tcp_keepalive_time = 120
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_keepalive_probes = 3
kernel.shmmax = 4294967295
vm.swapiness = 0
