[CentOS7]清除缓存

echo 3 > /proc/sys/vm/drop_caches

[root@worker1 ~]# free
              total        used        free      shared  buff/cache   available
Mem:        8173856     1026588      226660       52052     6920608     6782868
Swap:             0           0           0
[root@worker1 ~]# echo 3 > /proc/sys/vm/drop_caches
[root@worker1 ~]# free
              total        used        free      shared  buff/cache   available
Mem:        8173856      816320     6977884       52052      379652     7046840
Swap:             0           0           0
[root@worker1 ~]#

END

[CentOS7]清除缓存

原文：https://www.cnblogs.com/leoshi/p/13551102.html