High Memory Usage

[beloc]

Hello,

I have a pfSense+ box that is using alot of memory and I am wondering if anyone else is seeing this or if its something I need to look at.

This box has 32GB of RAM and it is using 90% of that. It is running NTOP but I have never see NTOP use this much RAM. It is also running pfBlocker, but the same is true for that process. Every things seems to run fine, I just keep getting alerts about it. I know that pfSense is using ZFS underneath, if it the ARC?

Thank you for any direction.

[SteveITS]

@beloc Diagnostics > System Activity will show ARC usage.

It’s tuneable, see https://docs.netgate.com/pfsense/en/latest/hardware/tune-zfs.html

[beloc]

@SteveITS

I figured it was the ARC. I may change it to be lower just because there is nothing that really needs to run out of ARC here. Thank you for the help.

[stephenw10]

Hmm, hard to imagine anything using that much RAM. But yes check the top output or ps -auxwd.