1、禁止交换(每台机器都要做):

    执行命令:vim /etc/sysctl.conf

            增加一行:vm.swappiness=0

            执行命令:sudo sysctl vm.swappiness=0

2、禁用大页面(每台机器都要做):

  执行命令:

  echo never > /sys/kernel/mm/transparent_hugepage/defrag
  echo never > /sys/kernel/mm/transparent_hugepage/enabled

       执行命令,修改配置:vim /etc/rc.local

       增加两行:

        echo never > /sys/kernel/mm/transparent_hugepage/defrag

        echo never > /sys/kernel/mm/transparent_hugepage/enabled

  执行命令,赋予权限:chmod +x /etc/rc.d/rc.local

 

 

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