cachebuff过高处理方法

[root@DD-Server-9F ~]# free total used free shared buff/cache available Mem: 8073628 1374360 2004964 385620 4694304 5820840 Swap: 8388604 0 8388604 [root@DD-Server-9F ~]# free -h total used free shared buff/cache available Mem: 7.7G 1.3G 1.9G 376M 4.5G 5.6G Swap: 8.0G 0B 8.0G #加入以下3条命令去释放cache/buff [root@DD-Server-9F ~]# echo 1 > /proc/sys/vm/drop_caches [root@DD-Server-9F ~]# echo 2 > /proc/sys/vm/drop_caches [root@DD-Server-9F ~]# echo 3 > /proc/sys/vm/drop_caches [root@DD-Server-9F ~]# free -h total used free shared buff/cache available Mem: 7.7G 1.3G 6.0G 376M 479M 5.8G Swap: 8.0G 0B 8.0G