Network - High Frequenz VM

Discussion in 'Proxmox VE: Networking and Firewall' started by Baader-IT, Dec 7, 2018.

  1. Baader-IT

    Baader-IT New Member
    Proxmox VE Subscriber

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    Hi,

    we want to build a high frequenz VM which have about ~300.000.000 incoming Data-Packages á day.

    Now we have a big problem because there is a big packet loss (~1,5% - 3.000.000) but the packages arrive at the host (the Switch is not the Problem).
    (We guess perhaps network buffering ?!)

    Info to the VM:
    -64GB RAM
    -32 CPU's (2 sockets, 16 cores)
    - NVME Harddisk

    What we already did:
    - VM with virtio network device
    - Multiqueues = 8 (+ ethtool -L eth1 combined 8)

    1) Do anyone can give me some infos, how I can reduce the packet loss or improve my network performance for this VM?

    2) Is there a way to set the Multiqueues higher than 8? I can only set 8...
    [root@vm ~]# ethtool -l eth1
    Channel parameters for eth1:
    Pre-set maximums:
    RX: 0
    TX: 0
    Other: 0
    Combined: 8
    Current hardware settings:
    RX: 0
    TX: 0
    Other: 0
    Combined: 8


    Greetings,
    Tobi
     
    #1 Baader-IT, Dec 7, 2018
    Last edited: Dec 7, 2018
  2. Baader-IT

    Baader-IT New Member
    Proxmox VE Subscriber

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    If I set the Multiqueues over my VM config file I can set them to an other value.

    net1: virtio=F6:55:F2:37:1B:11,bridge=vmbr10,queues=16


    Is there a way to change them over the GUI ?
     
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