ProxMox Showing High Ram Usage, No Guests Running

[Jeffrey Roberts]

Hey guys, I just installed Proxmox with 1 guest OS, and after shutting down the guest OS, the RAM usage is still very high, Ive ran proxmox in the past without this issue, I am wondering if I set something up wrong, can anyone help me troubleshoot this please =]

I tried to post a pic of my ram usage, but it wouldnt allow me...

Tasks: 447 total, 1 running, 350 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.0 us, 0.0 sy, 0.0 ni,100.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 65902412 total, 36845000 free, 28868960 used, 188452 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 36446124 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2928 www-data 20 0 574832 126640 10268 S 0.0 0.2 0:02.12 pveproxy worker
3986 www-data 20 0 570500 122028 10548 S 0.0 0.2 0:01.77 pveproxy worker
20048 www-data 20 0 563944 117044 9784 S 0.0 0.2 0:00.51 pveproxy worker
1428 root 20 0 556556 115152 9284 S 0.0 0.2 0:01.85 pvedaemon worke
18895 root 20 0 556056 114580 8852 S 0.0 0.2 0:00.10 pvedaemon worke
15257 root 20 0 556012 114568 8888 S 0.0 0.2 0:00.91 pvedaemon worke
2925 www-data 20 0 553340 108664 2728 S 0.0 0.2 0:00.04 pveproxy
2883 root 20 0 545620 107184 2700 S 0.0 0.2 0:00.03 pvedaemon
2907 root 20 0 521700 85040 6536 S 0.0 0.1 0:00.30 pve-ha-crm
2948 root 20 0 521380 84664 6532 S 0.0 0.1 0:00.48 pve-ha-lrm
2861 root 20 0 512604 76136 6732 S 0.0 0.1 0:03.10 pve-firewall
2854 root 20 0 510880 75928 8244 S 0.0 0.1 0:13.33 pvestatd
2758 root 20 0 616584 57928 46528 S 0.0 0.1 0:03.98 pmxcfs
2956 www-data 20 0 284984 50852 4692 S 0.0 0.1 0:00.03 spiceproxy work
2953 www-data 20 0 282516 48564 2636 S 0.0 0.1 0:00.02 spiceproxy
779 root 20 0 46100 6636 6116 S 0.0 0.0 0:00.22 systemd-journal
24102 root 20 0 95208 5656 4680 S 0.0 0.0 0:00.01 sshd
1 root 20 0 57400 5588 3708 S 0.0 0.0 0:01.13 systemd
24170 root 20 0 56688 5168 4252 S 0.0 0.0 0:00.01 systemd
2650 postfix 20 0 83280 5080 4304 S 0.0 0.0 0:00.00 qmgr

I know its ugly, I apologize for that, but as you can see, the total allegedly being used is 2.3% however, the actual memory being used is somewhere around 43%

Any ideas?

 

[udo]

Any ideas?

Hi,
zfs?!

You can limit the zfs-arc-mem with "options zfs zfs_arc_min=xxxxxxx" and "options zfs zfs_arc_max=xxxxxxx" in /etc/modprobe.d/zfs.conf.
Do an "update-initramfs -u" after change this values and reboot.

Udo

 

[Gaston Senac]

yes, are you using ZFS? it will use a massive amount of memory as a cache and won't be shown in the "top" command