释放Linux系统cache，增加可用内存空间

时间：2021-07-12 15:40:20 收藏：0 阅读：22

To free pagecache:

echo 1 > /proc/sys/vm/drop_caches    或sudo sh -c "echo 1 > /proc/sys/vm/drop_caches"

To free reclaimable slab objects (includes dentries and inodes):

echo 2 > /proc/sys/vm/drop_caches   或sudo sh -c "echo 2 > /proc/sys/vm/drop_caches"

To free slab objects and pagecache:

echo 3 > /proc/sys/vm/drop_caches  或sudo sh -c "echo 3 > /proc/sys/vm/drop_caches"

原文：https://www.cnblogs.com/lsz-lsc/p/15001837.html