memory utilization causes

[umar7]

HI support,

what are the possibilities for the high memory in devices?

what is the first aid for the device ?

what are the commands to verify the high memory?

it will affect the SMS and SG ?

[Blason_R · Accepted solution]

There are multiple possibilities for high memory - Like heavy traffic, Heavy connections, not properly fine tuned system or rules. Bug in that specific build or memory leak - You are recommended to always check and see the release notes for hotfix which is currently installed on firewall or mgmt

To identify the root cause there are multiple commands you can use and the most I prefer

top (Any zombie processes/High Utilized processes)

1. free -m (Swap memory)
2. top -c
3. cat /proc/meminfo
4. vmstat -s
5. fw ctl pstat
6. ps auxww 
7. sar -r

[the_rock]

@Blason_R gave you more commands I was going to give, so please follow what he provided.

[Chris_Atkinson]

Does the memory utilization track with your connection table?

What appliance do you have and how much memory is it installed with?

cpview may also be useful here.

[Timothy_Hall]

Need to see free -m output, the "high memory utilization" you see is likely used for buffering/caching to improve the disk I/O performance of the firewall, and does not necessarily indicate a problem or shortage of memory.