jail resource usage reporting

[mistermanko]

So netdata as a FreeNAS-plugin is quite nice, but I really wanna know more about my jails.

How much of my installed RAM ist consumed by each jail? The laundry/services graph only shows the total RAM usage. Is it Plex? Is it nginx?
Also, how is CPU usage distributed across jails?

I know of iocage df but that only lists storage use. I need more data! :)

This is what I mean, over half of my RAM is currently hogged by "services". But what services?

 

[sretalla]

top -j shows you the JID (from jls) of each running process... it that the kind of thing you wanted?

 

[sretalla]

But what services?

Probably SAMBA...

 

[mistermanko]

Ok, seems that the RAM reporting on the dashboard is kind of misleading. The amount of RAM that is displayed as allocated to "Services" is really just "Inact", respectively not currently in use.

Code:

last pid: 78539;  load averages:  0.23,  0.24,  0.24                                                                                              up 3+16:31:56  14:50:42
129 processes: 1 running, 128 sleeping
CPU:  0.1% user,  0.0% nice,  0.3% system,  0.1% interrupt, 99.5% idle
Mem: 466M Active, 19G Inact, 17M Laundry, 11G Wired, 1084M Free
ARC: 8058M Total, 2057M MFU, 4918M MRU, 18M Anon, 98M Header, 966M Other
     5611M Compressed, 9201M Uncompressed, 1.64:1 Ratio
Swap: 8192M Total, 8192M Free

 

[mistermanko]

Probably SAMBA...

Would be really useful to know THAT it is smb.
How am I able to confirm that?

 

[sretalla]

You can also just hit j at any time when running top to toggle the JID field. Use o followed by size while it's running to order by size (Memory)

 

[mistermanko]

You can also just hit j at any time when running top to toggle the JID field. Use o followed by size while it's running to order by size (Memory)

neat.

 

[mistermanko]

Looks like qbittorrent is the culprit. It is a know bug in current libtorrent. https://github.com/qbittorrent/qBittorrent/issues/12326

 

[sretalla]

Looks like qbittorrent is the culprit.

Good to know, I always blame SMB by default, so good to know I need to update my reference.