If you are running your vicidial server for continuously and you top command shows you are running low on memory?
Simply install a new cron job to free up memory usage.
Use this command:
on shell with privilege user login:
~]# crontab -e
You are now viewing your corn jobs , At the bottom add this command
#### Flush cache after every 20 minutes
29,59 * * * * 1,2,3,4,5,6,7 sync; echo 3 > /proc/sys/vm/drop_caches
Press :wq to write up and save the file .
This will automatically free unwanted cache and free up memory !