VM Router intermittently slow - possible powersaving issue?

[veehexx]

I'm experiencing intermittent slowdowns of internet bandwidth and trying to find the cause of whats going on.

Host is Proxmox 7.4.3, with the opt-in kernel 6.1.15 (i've seen this issue for a few months over various versions), on a i5-10210u laptop. cpu governor is set to performance.

VM is Opnsense, with 'host' cpu type, AES enabled, 2 cores.

Clients vary from linux laptops, to windows desktop computers and not specific to one client.

what i'm seeing is when downloading (say, nvidia drivers), it'll run around 1.2MB/s. if i start a second download (say ubuntu iso), then those two downloads will jump to my line speed; >30MB/s (300mbit FTTP) and remain at full speed. i can then pause/cancel one of the downloads and the higher speed will continue. I'm swaying towards some sort of power-saving feature getting in the way but no idea where.
speedtest.net confirms the same behaviour. No line activity, then i'll see around 1.2MB/s max. if i start downloading mid-speedtest, then the speed will jump to whats expected.

clearly i've no issues with the raw performance of things as once the "threshold" is met i see the full expected 300mbit rate, but i'm at a loss to what is causing this type of behaviour.
What could be the problem?

 

[Spoonman2002]

Have you tried in OPNsense menu:
Interfaces > Settings > disable hardware offload (first 3 tick boxes)

 

[veehexx]

yes, those are already disabled. Also, prox is set for virtIO nics, vlans enabled.

Do you think this is an OPN issue rather than prox side?

edit: might've found the issue. despite not actively using the parent interface for the vlans, you apparently need to assign it an interface & enable it. no IP config is needed. Appears it's a new requirement from v22.1 release. (https://www.reddit.com/r/opnsense/comments/vfj1ag/i_finally_found_out_why_throughput_was_so_slow/). hopefully this fixes it - initial tests are good so far.

 

[Spoonman2002]

Just a remark from me, nothing to do with the TS problem:
I see a lot of (YouTube) instructions where people configure the OPNsense vm as "OS Type : Linux".
In fact the OS is FreeBSD.
I set it as OS Type : Other.

 

[veehexx]

i'm still testing the parent interface requirement on opnsense, some tests are definately better (testmy.net), speedtest.net can be a fit finiky. nvidia download intermittently run 1.2MB/s still, and other times at the full 30MB/300Mbit line speed, never anything else.

i'm resonably sure this is actually a opnsense/guest side problem rather than proxmox now (i had to start somewhere... base up, so prox was first on the list to ensure i hadnt overlooked something stupid.

 

[veehexx]

Just a remark from me, nothing to do with the TS problem:
I see a lot of (YouTube) instructions where people configure the OPNsense vm as "OS Type : Linux".
In fact the OS is FreeBSD.
I set it as OS Type : Other.

interesting... i'm on linux type (didnt use youtube vids for this... i should know better, but i guess if it worked, then i wouldn't of gone changing things. i'll certainly look into changing that when i'm able to bring the router offline.

 

[Spoonman2002]

I have several OPNsense vm's for testing purposes in Proxmox.
When I run speedtest from the cli it gives my ISP speed correctly (even a bit higher speeds).
Do you use the cli FreeBSD version? And in Windows I use the Speedtest app from Microsoft Store (so not via a webbrowser).