Nodes have no external IP and running behind NAT • One VM in Cloud Cluster has EIP • No direct connection between Edge nodes • Goal • Cloud VM and Edge nodes run as in one cluster • KubeBus Virtual Router Edge connection • Router to connect • Cloud VM subnet • Cloud Container subnet • Edge Node virtual subnet • Edge Container subnet Cloud Cluster EdgeNode VM VM VM ... Container Network, e.g. Flannel 10 192.168.6.2 Container ... KubeBus Virtual Router Edge Network IP: 192.168.6.4 EIP: 35.160.180.205 VM IP: 192.168.23.131 192.168.23.130 192.168.23.129 Container Network 10.243.0.0/16 EdgeNode KubeBus

值越大，越积极使用swap分 区，值越小，越积极使用内存。 执行命令vi /etc/sysctl.conf， 将vm.swappiness = 1添加到文 件底部，保存退出，执行命令 sysctl -p使其生效。 dirty_ratio 内存里的脏数据百分比不能超过 这个值。 echo 5 > /proc/sys/vm/ dirty_ratio 3.9 内核优化 目的 openEuler 20.0

com/metaq/document/benchmark/benchmark.pdf  Documentation for /proc/sys/vm/* http://www.kernel.org/doc/Documentation/sysctl/vm.txt