How to clear memory cache & swap space on your Linux system
If you think your Linux system has decreased performance,you can try some workarounds such clear the memory cache and clear the swap space.
To clear the filesystem's memory cache, run the following commands:
To clear the swap space, run the following command:
For daily automation, paste the above two commands in your cron jobs, such as the following:
Note : i use CentOS 6.4 with root privilege
Hope these tricks helps
To clear the filesystem's memory cache, run the following commands:
[root@development ~]# sync [root@development ~]# echo 3 > /proc/sys/vm/drop_caches [root@development ~]# echo 0 > /proc/sys/vm/drop_caches [root@development ~]# sync
To clear the swap space, run the following command:
[root@development ~]# swapoff -a && swapon -a
For daily automation, paste the above two commands in your cron jobs, such as the following:
0 1 * * * /sbin/swapoff -a && /sbin/swapon -a 0 0 * * * /bin/sync; echo 3 > /proc/sys/vm/drop_caches; echo 0 > /proc/sys/vm/drop_caches; /bin/sync
Note : i use CentOS 6.4 with root privilege
Hope these tricks helps
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