Proxmox 6 + Pci-passthrough = Reports high memory usage in pve-manager

[clausdk]

When you add a pci-express card to the VM the memory usage goes up to almost max

Vm config:

With the Pci device added (not booted):

Without the PCI device( not booted)

Maybe someone can explain why this might be? Also it seems it does have a slight impact on the performance...


System information's
---------------------------------
CPU(s)
4 x Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz (1 Socket)

Kernel Version
Linux 5.3.13-1-pve #1 SMP PVE 5.3.13-1 (Thu, 05 Dec 2019 07:18:14 +0100)

PVE Manager Version
pve-manager/6.1-3/37248ce6

 

[aaron]

Do you see anything in the output of dmesg that start showing up once you attach the device? The -w flag can be useful.

 

[clausdk]

I've taken a look at the dmesg, but I do not see anything obvious. I have attached it into a file...

 

[James Crook]

As i side note, i see your machine name is TVHeadEnd. I have huge stutter issues with my PCIe FreeSat card when passing it through to a virtual (it maybe been PCI lanes being congested) but it seems rock solid in a container with access to the /dev/dvb

 

[clausdk]

Thanks! I'll try it with a LXC container instead and report back.