kvm host安装优化

1.selinux/ssh port

2.

有整列卡用这个

Disk Scheduler Selection

cat /sys/block/<block device>/queue/scheduler
echo noop | sudo tee /sys/block/<block device>/queue/scheduler
	

Adding the following lines to your/etc/sysctl.conffile will increase network throughput

net.core.rmem_max=16777216
net.core.wmem_max=16777216
net.ipv4.tcp_rmem=4096 87380 16777216
net.ipv4.tcp_wmem=4096 65536 16777216