1. W

    Poor network performance in LXC container

    Hello. Yesterday we migrated our Proxmox VPN server from QEMU virtualization to an LXC container, and when we connected to the VPN and measured the speed on speedtest.net, the download speed was 0.98 Mbps, less than 1 Mbps. Upload speeds were about 30 Mbps, which was typical. When running with...
  2. C

    vmxnet3 MTU bug? Patch available?

    I am working with nested ESXi 7.0, which I have found is only compatible with the vmxnet3 NIC. When powering on the VM, it eventually crashes quick enough that it doesn't even fully boot and I see this event in syslog: QEMU[1560506]: kvm: ../hw/net/vmxnet3.c:1444: vmxnet3_activate_device...
  3. T

    VirtIO NIC checksum fail & poor speed

    Hey all, I have a 3 node cluster (6.0.4) each with dual 10Gb Intel NICs. On both Windows and CentOS 7.x VM's I have VirtIO 10Gb networking installed. I have zero issues with Windows. On CentOS I find that any files that are moved to/from a network share fail checksum. There also seems to be...
  4. B

    OsX VM unable to write data to NAS properly

    Hi everyone, I am at an impass. After several iperf3 tests and Blackmagic write/reads, I realized all connections work fine from all the computers at home, except uploads/writes from my Macintosh VM to the NAS (freenas). As you will see below, I've ran tests from all points (Proxmox node...


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