LXC strange upload network speed

openaspace

Member
Sep 16, 2019
284
3
18
Italy
Hello.
I have moved a VPS configuration to LXC with debian and from the 90MB/s of the VPS , now I can reach only 40MB/s with the container.
Also occour that a download start at 40MB/s and go down around 25/30 MB/s.... The available host bandwidth is 1Gbps.

If I start other downloads at the same time, the download bandwidth don't encrease, but remain around 30/MB/s and the speed of each transfer is divided within the 30MB

The lxc ram is free for 70%, the host cpu 50%, host RAM 35% free.
The LXC is behind OPNSENSE firewall... therefore i have tried to give more ram and cpu to the firewall..
but no results...

on the VPS i was using multiqueque to 8, but with LXC there no parameters to set....

What can be the problem...?

Thank you.
 
Last edited:

wolfgang

Proxmox Staff Member
Staff member
Oct 1, 2014
6,483
454
103
Hi,

I guess you use the wrong type of vnic on the Opensense.
The 30 MB/s sounds like an e1000. Use a virtio for the Opensense and disable the hardware checksum offload.
 

openaspace

Member
Sep 16, 2019
284
3
18
Italy
Hi,

I guess you use the wrong type of vnic on the Opensense.
The 30 MB/s sounds like an e1000. Use a virtio for the Opensense and disable the hardware checksum offload.
Yes, but with Virtio I can reach only 20Mb/s..
I was tried to use e100 for this problem, poor speed with virtio instead of e100..

What can be the problem?
offload etc.. are disabled from months :)
 

wolfgang

Proxmox Staff Member
Staff member
Oct 1, 2014
6,483
454
103
What do you use as phy Nic for this vnic?
 

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