Virtualbox (Xubuntu): Very slow network transfer between VMs

Linux howto's, compile information, information on whatever we learned on working with linux, MACOs and - of course - Products of the big evil....
Post Reply
User avatar
^rooker
Site Admin
Posts: 1482
Joined: Fri Aug 29, 2003 8:39 pm

Virtualbox (Xubuntu): Very slow network transfer between VMs

Post by ^rooker »

[PROBLEM]
Setup was (on Xubuntu 18.04):
* VM client 1 (Debian9)
* VM client 2 (Debian10)

Transferring files using rsync-over-ssh was slowly crawling around 300-600 KB/s. :?


[SOLUTION]
The Debian9 VM client had an "Intel PRO/1000" adapter assigned, whereas the Debian10 VM was using "virtio-net" (Paravirtualized Network).
I've set both to virtio, and now we're back to normal speeds of >100MB/s.
Jumping out of an airplane is not a basic instinct. Neither is breathing underwater. But put the two together and you're traveling through space!
Post Reply