cpu cores

  1. L

    Container - CPU Cores on an Intel i5

    Hi, My CPU is an 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz. I created a container and selected 8 CPU cores, however, I can only see 25% max on CPU usage. On Proxmox I can see 8xIntel core i5 sockets. Also feels it never surpasses 25% on max CPU usage too. The output of the command...
  2. K

    Problem the cores are not recognized

    Install proxmox pve-manager/7.4-15/a5d2a31e, on a computer with an Intel(R) Core(TM) i3-10105 processor, and it only recognizes one core, not the 4 that it should. CPU(s) 1 x Intel(R) Core(TM) i3-10105 CPU @ 3.70GHz (1 Socket) kernel version Linux 5.15.108-1-pve #1 SMP PVE 5.15.108-1...
  3. N

    Proxmox Xeon CPU upgrade choice

    I am doing a new Proxmox server build and while I am at it, I've been thinking to also upgrade the CPU on my Dell Precision T3610 workstation. It currently runs an Intel Xeon E5-1620 v2 @ 3.70GHz which appears to be a 4 core CPU, even though Proxmox says 8 x Intel Xeon. My use case for this...
  4. P

    [SOLVED] 2 nodes, 1 showing CPU Core amount wrong

    Hello guys, just a quick question. We have 2 servers/nodes in our environment, with 2 CPUs/sockets each. One server has 2xCPUs with 14 cores each (total of 28 cores), and the other server has 2xCPUs with 18 cores each (total of 36 cores). Now the question: In the node overview, Proxmox is...
  5. R

    LXC-VM Resource Allocation.

    Hey Y'all. I've got a question. I hope it isn't a stupid question, but the only way to know is to ask, because google hasn't been forthcoming. I'm not an IT guy. By education, I'm an engineer. Computers are my hobby. I know enough to install proxmox and configure multiple LXCs/VMs over command...
  6. J

    What CPU to get to build a small UTM firewall appliance with extra services

    Looking to buy the lowest end system (read: lowest cost) capable of hosting a Sophos UTM Home Edition firewall (maybe XG free edition in future) to serve as an Internet Router and LAN gateway, plus a Windows 10 Pro VM connected to a USB drive for backups. The Windows VM is for UPS monitoring...
  7. F

    Enabling Numa

    Hi, I was looking at the docs about enabling NUMA because I have dual Xeon E5-2650 v2 processors on a dell R720 server. I have searched everywhere to find a good guide to enable NUMA according to the number of nodes and sockets. Anyone has tried it and could help? Cheers,
  8. F

    Problems with TwinCAT, Proxmox and isolated cores on Windows

    Hello, I am experiencing some weird problems with TwinCAT (TC) in a Windows-VM. Because these problems do not occur with a different hypervisor (vmware ESX or HyperV), I suspect that the problem is related to Proxmox, KVM and/or their implementation of nesting. But first things first: I am...
  9. S

    Hypethreading (SMT) and CPU settings

    Hello, I have Proxmox VE 7.0 running on PC with AMD Threadripper 2920X (12C/24T). SMT (or Hyperthreading) is enabled. CPU has two NUMA nodes. I have two VMs: 1. WIndows 10 VM for gaming and work. 2. Linux VM that is hosting game, web and mail servers. Both VMs have high CPU utilization. Windows...
  10. L

    error occured during live-restore: MAX 8 vcpus allowed per VM on this node

    Thanks for the PVE 6.4 release! The Live-Restore feature is especially interesting to me, because I've always looked for ways to make the restore faster in order to keep disaster recovery times a minimum. Situation: Main Node has 16 cores / 32 threads VM 101 has 32 vCPUs, because the database...
  11. S

    Windows 10 VM CPU frequencies underperforming?

    I'm new to proxmox and experimenting with how well Windows 10 will run on proxmox on my PC. I'm facing a bit of an issue with the CPU frequencies either showing incorrectly or something is wrong in my configuration. I have my CPU overclocked in my BIOS to 4900Mhz. The CPU has 8 cores, all of...
  12. D

    Cluster possibility?

    Hi, I am currently looking to use proxmox for my cluster but i have some consernes.. can i put all the cpu power, memory power on a single pool so for exemple i can use 4core on one node and 2core on an other node and for memory i use 4GB on 1 node and 1GB on an other node. is it something...
  13. F

    [SOLVED] Creating templates with high amount of resources

    Hi everyone. I'm creating VMs using templates on thin lvm storage. I create the templates using various values for RAM and CPU, so template could have multiple CPUs or a big amount of RAM. Then on next builds, after clone I set CPU and RAM for new vm. My question is that does having high number...
  14. F

    i need to understand multi node

    Hi i have my main pve1 with 40GB Memory and 8 cores then i create a new pve2 with 64GB Memory and 10 cores and join pve1 to pve2 so does this allow me to use 50GB memory and 12 cores on one vm in pve1 ? this is just an example as i need to know if its possible to use higher values then with one...
  15. J

    Strange CPU cores count limitation

    Hello. I already installed macOS using Proxmox on my rig. My CPU is 3rd Threadripper 3960x. I see little lags when I am using macOS and try to find reason. I found here that is not recommended use maximum cores of your CPU for VM (that was my case. I had set 3x16 cores) and now beginning my...
  16. L

    Problem with lxcfs 4.0.1 / online CPU is not working

    Hi forum, I've noticed that lxcfs has virtualized the /sys/devices/system/cpu/online dir since lxcfs version 3.1.2, but it's not working for proxmox LXC: After upgrade the proxmox, I saw the lxcfs version has upgrade to 4.0.1, but it seems not working: Host...
  17. M

    Ideal containers count for a lot of services. Recommend me please CPU+RAM settings for containers!

    Hi everyone My hardware + software for work 0-24 all day as home server: CPU i7-4790K, 32GB RAM but if not needed all, I can use with only 16GB too. HDD: 2x 1TB HDD (Seagate Enterprise Capacity, ST1000NM0008) with software raid Latest Debian + software raid + latest Proxmox install, all works...
  18. T

    Common KVM processor

    Hello, When I checked the Task Manager in Windows 10 and viewed Performance, the selected CPU is worded "Common KVM processor" instead of name of the CPU? Intel i7 8600K. What can I do to make it read the CPU name instead of common KVM processor? Does correcting the name affect the overall VM...
  19. M

    Best VM vCPU setup for a dual CPU host?

    I have proxmox installed on a server that has 2 Xeon x5570s inside of it each one has 4 cores and 8 threads. My question is how should I configure the CPU hardware for my Windows VMs? should I set the CPU configuration of the VMs as 2 sockets and 1 or 2 cores or should I set it as 1 socket and 2...
  20. H

    Proxmox 5.4-6 VMs very slow

    Hello, I have a slow problem with my VMs (linux / windows) under proxmox, despite the server is efficient server (12 CPU, 64 GB RAM), I gave the machines a lot RAM and CPU but still the slowness exists, as well as the internet connection is perfect Regards, Thank you,


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!