How to calculate Memory utilization on Linux server

 How to calculate Memory utilization on Linux Server:

[root@prddb1 root]# free -m

              total        used        free      shared  buff/cache   available

Mem:        6190278      981277     2684757       29303     2524243     5073648

Swap:         16383         596       15787

[root@prddb1 root]#

Here the values are in MB,

Total Memory = 6190278 

Free Memory or Available Memory = 5073648

So the memory utilization will be calculated using below way:

Memory Utilization = [(Total Memory - Available Memory )/Total Memory] *100

i.e

Memory utilization = [ 6190278 - 5073648)/6190278 ]*100 = 0.1804*100 = 18%

This means the current or real time total memory utilization is 18%

Regards,

Kiran B Jaadhav