swap

  1. D

    High SWAP usage on Backup

    Hello, one of my nodes has high swap usage when I run backups at night. The backup starts at 10pm and takes around 7 minutes for 5 LXCs and 4 VMs. Physical memory even drops around that time. Other nodes behave fine while doing backups. Any idea on why that is happening? Best regards
  2. U

    VM gets killed every week

    Hi, I have 3 HA servers each with 64GB RAM, one of the nodes, runs a KVM that keeps crashing every week, it is quite random how it occurs. Each server have 1GB Swap only that is full most of all the times. Now upon reading some articles and here in forum I disabled temporary the swap. Made...
  3. Z

    New installation: System RAID1 how to create SWAP

    Hi, i am a new proxmox user. With an installation on a RAID1 configuration i haven't SWAP created. Have i forget something or must i create SWAP on an other disk?
  4. E

    Swap not detected in all lxc containers in a node

    Hi all I have a 3 node-cluster for my development environment, all three nodes are basically same hardware. Cluster is pve6 and all lxc containers are centos7. In one of the nodes, all the containers have 0 swap memory, no matter what the configured amount is for any lxc. The main node las 16GB...
  5. B

    Which would be the best way to configure SWAP memory with HD disks ZFS file root system?

    Hello for everyone, I have an standalone node with 380 GB RAM and CPU usage is normal, 20 CT and 15 VM with Promox 6.3.6, I don't have IO delay. I just now I'm trying to configure a new CT, but I found that the container doesn't have SWAP memory (I did that setup with 2 Gb) so when I start to...
  6. K

    Proxmox and swap partition

    Is there a reason why the default install of Proxmox VE doesn't allocate it's own swap partition? If not, should I be providing my VMs with access to swap space and if so, should I be providing this swap space on SSDs or HDDs?
  7. S

    Trying to understand LXC RAM and SWAP allocation

    I have a workstation with 256 GB RAM, and by default the host has only 8 GB SWAP. With the two LXCs I have, as they can potentially use a lot of RAM, I committed 192 GB RAM and 64 GB SWAP to both. My question is, in a situation where both LXC reaches a high usage and they consume more than 256...
  8. M

    Debian VM RAM Assigned As SWAP

    I have created a Debian 10 or 11 vm and added 6GB of RAM but, this is allocated as swap inside the vm, have i dun something wrong. I have tried other OS both, Linux and windows and this seems to be only happening with Debian, i have tried with and without ballooning enabled and changing the...
  9. G

    VM Swap memory always full

    For one of our VMs we allocated around 30 GB RAM. Every time we check the usage of resources, using htop, we see that the SWAP memory is always at 100%. Here is a picture: We are not sure this is normal behavior Even our swap memory in the proxmox GUI, the one for the entire...
  10. A

    SWAP dauerhaft deaktivieren

    Hallo, der Proxmox Support hat mir geraten meinen SWAP zu deaktivieren, da dieser auf zwei von vier Nodes auf 100% war. Arbeitsspeicher war jeweils auf etwa 60%. Ich habe auch bemerkt, dass SWAP vor allem da voll wird wo viele LXC Container laufen. Nun aber zu der eigentlichen Frage: Wie...
  11. L

    [SOLVED] SWAP Speicher vergrößern mit vorhanden VMs

    Guten Tag, ich habe einen laufenden Proxmox (Version 5.4) auf dem auch um die 10-15 VMs laufen. Gesamtfestplattenspeicher des Proxmox bewegt sich um die 1.2TB. Davon /data mit 1TB / ca. 100GB ROOT bzw. LOCAL / 8GB SWAP. Nun würde ich den SWAP Speicher gerne noch vergrößern, auf wenigstens...
  12. Dunuin

    [SOLVED] guests swap partition completely rewritten every VM reboot

    Hi, I monitored my proxmox host with iostat found alot of "zd" devices writing once 8386556kb and then nothing changes. Most of my VMs got a vdev with thin provisioning and dicard of 8GB size for swapping (but rarely used because of swappiness of 1). Every time I reboot a VM it adds 8386556kb...
  13. D

    PVE acting on its own

    Hello all, I have Lenovo P500 Workstation with PCie NVME, 96GB RAM and 24core Xeon. Now after certain update, and I cannot recall which, PVE is acting strange like it has its own mind. I receive certain containers shutdown, I notice something is not working and I go look and it is shutdown. No...
  14. T

    High swap usage,alot of free RAM

    Hey, I've been using Proxmox for a while now, and I'm very happy with it. The only major issue I could not solve so far with the manual is the swap usage. I'm using an NFS share for storage, and the KVM processes seem to use quite a bunch of swap, even trough there is plenty of RAM to use...
  15. I

    [SOLVED] Can i disable the swap on the proxmox host?

    i have some proxmox servers installed, but on some of them there are swap enabled and always full. (i think it might reduce overall performance) there are lots of ram available. is it safe to disable the swap in proxmox host? ( it have around 20 containers and 4 vms running)
  16. T

    Niedriger RAM / hoher Swap verbrauch. Ist das normal?

    Habe PVE 6.2-6 mit 2 LXCs. Wie aus dem Screenshot zu sehen ist, ist beim ersten LXC die RAM Auslastung bei 3.19%, der Swap bei 47.1%. Hier läuft nur ein proFTPd mit mariaDB. Ist das normal oder kann/soll man da was optimieren? Der 2te LXC hat das RAM fast gefüllt, wobei ich auch hier nicht...
  17. H

    LXC: set memory.swappiness for individual CTs

    Hello, according to cgroupv1 docs: https://www.kernel.org/doc/Documentation/cgroup-v1/memory.txt It IS possible to set different swappiness value for each cgroup. How can i do this with proxmox CTs? Also: Can you please add GUI for this? This would greatly help me with swap issues caused by...
  18. D

    Proxmox 6.1 Memory Management - Booting from ZFS

    Hi, I have a bit of a problem with a test system I am running. Version details are below but the key factors are that I am booting from a single conventional hard disk, setup as a ZFS pool (called rpool). My reason for using zfs is that I plan to replicate the partition so I have a complete...
  19. M

    What is best swap configuration ?

    Hello. How do you configure swap on porxmox host machine ? I read different recommendations from: turn off swap at all to keep asa it is. I have 64 Gb RAM and 16 is used by containers and 1Gb swap in the same time. Is it good or not ? What do you advice to do or not with swap ?
  20. D

    Why my container is swapping?

    Hi, I have a container which has very slow performance, and trying to debug this i realised that it's swapping so much even if it has a lot of RAM memory available: These are the status graphs of the hypervisor: As you can see the host does not seems to be overloaded. Another...