Centos 释放内存

Centos 释放内存 

[root@ AY529  ~]# free -m
             total       used       free     shared    buffers     cached
Mem:          2509       1767        741          0          0       1063
-/+ buffers/cache:        703       1805
Swap:          478          0        478
[root@ AY529  ~]#

把内存里的数据暂时写到硬盘里
[root@ AY529  ~]# sync

修改 /proc/sys/vm/drop_caches文件
[root@ AY529  ~]# echo 3 > /proc/sys/vm/drop_caches
[root@ AY529  ~]# cat /proc/sys/vm/drop_caches
3

再看看内存情况
[root@ AY529   ~]# free -m
             total       used       free     shared    buffers     cached
Mem:          2509        668       1840          0          0         89
-/+ buffers/cache:        579       1929
Swap:          478          0        478

出自于：格格衣柜 www.gegeyigui.com